7800x3d infinity fabric speed reddit. 0GHz/104MB w/3D V-CACHE/AM5) Motherboard.

Notice in this video he was only able to run his ram at 6000 MT/s. It’s apparently set at 2000mhz stock, and someone had an issue similar to what you’re having. View community ranking In the Top 1% of largest communities on Reddit. Your processor is fine. So If your Flck is not the same as your ram speed you will lose performance. Some games still favour Intel, but then you also have instances where the extra cache really helps. " Up to DDR4-3600, the fclk/mclk/uclk are in a 1:1:1 ratio. Also, after 3600 memory clock, you'll need to manually set fclk or else your system will automatically run in 2:1 mode, where your fclk becomes half of what your memory's actual clock is. Actually latency is at 64. It seems it’s important to put the memory controller, the IF and the memory clock to 1:1:1 ratio. 5ghz though. Reply. I am trying now 7800x3D and i have similar read speed and i had to adjust some timings, because i am using BLCK overclocking for 7800x3D, so my ram speed is now 6300mhz and it was not stable with tcl 26, maybe with higher voltage but i dont want to push it harder. Apple silicon - like X3D CPUs - has a memory bandwidth advantage. It seems to run well at anything up to 5600, with the same 32, 38, 38, 96 timings and infinity fabric set to Auto We would like to show you a description here but the site won’t allow us. So if you enable an XMP profile for DDR4-3600, you will have 1800MHz for all three clocks. ASUS® ROG CROSSHAIR X670E HERO (WIFI 6E, DDR5, PCIe 5. - Asus B650e-e motherboard latest bios (1636, agesa 1. 2 / 5. Get the Reddit app Scan this QR code to download the app now Is FCLK Infinity Fabric speed? This is using a 7800X3D on MSI B650 MCLK 3000. You can probably run your B-dies at 3600Mhz CL14. As for infinity fabric 2133-2167MHz Yes, which is actually the same as the ram speed, they just like to do in proper math for dual channel. I've bought a 3600MHz RAM kit and I heard that the infinity fabric should be set to 1800 (to match the RAM speed). If you go one step above DDR4-3600, say DDR4-3633, the ratios change. Essentially it will run the rest of the system at a standard 100, while modifying the CPU multiplier by your secondary reference clock. Changed TDP settings from auto to the highest which is called "170W I'm really new in what comes to pc building and overclocking, etc. skill Trident DDR5 6000 CL30. 2 GHz 8-Core Processor] I ended up with a final configuration of 6400mhz 32-39-39-74 with my Infinity Fabric at 2133 keeping my ratio at 2:1:1 The three clocks are memclk, uclk and fclk. 7 peaking out at 4. Games are latency sensitive, so unless you're running fast enough memory to overcome the latency penalty of 2:1 (memclk:fclk), 1:1 is usually ideal. EXPO 1 profile is enabled. Use the Ryzen RAM calculator, and should be doable for even the most inexperienced overclockers. If you're already tuning on AM4, this number should sound familiar -- Zen 4 fabric is an incremental improvement over Zen 3 fabric. The infinite fabric I'm pretty sure has to be a fraction of your RAM speed based on the Gear ratio you're using. I'm planning my first build (so I am painfully uninformed) and was looking at benchmark performances between the 7800X3D and the 13900K. What's the best speed combos I have an Asrock Steel Legend X670E and g. Recent BIOS updates allow RAM above 6000 Mhz on AM5 boards, thing is, a good low latency DDR5 6000 Mhz kit TECHNICAL. It runs solid as a rock at 4800MTs but if I enable XMP it goes to potty. And when I was researching i found that that's the highest speed my motherboard supports so I went for it. Intel rates their 14900k at 89GB/s. 2 SSD Drive. 09ghz. However, it consistently runs at 4800 MHz, causing longer boot times(?) I've updated my system and enabled DOC in the BIOS, which appears to overclock the RAM to 6000 MHz. My memory clock is at 1600 but my fabric clock is at 1067. 8 (x2) MHz. My 3800x boosts to 4. If you want higher memory speeds to will need to drop to 1:2 but this will also drop performance until your memory speed gets to around 7000, where you start getting a performance benefit over 1 The 7800X3D would also be more than fast enough, but it really depends on what you are doing in those VMs/pods/containers/etc. Both are great CPUs that are equally good for gaming but the 7800X3D is much, much cheaper. Apr 5, 2023 · Above 6000 MHz, the strategy will be changed to 2:1 ratio. 105*48. with the highest 4K Ultra HD resolution, which is the native stomping ground for the GeForce RTX 4090, we're seeing that the Ryzen 7 5800X3D is matching the Core i9-13900K "Raptor Lake" very well. As a result, most of us will be running the IF in a 3:2 (FCLK: MCLK) configuration, rather than 1:1 or 1:2. Which would be optimal. Check out the Ryzen DRAM calculator. so what i ended up doing is using ryzen master to enable "coupled mode" and set the clock speed to 1600Mhz. Ryzen 5000 Memory is generally ok at 3600, some Lucky ones go up to 3800, but infinity fabric always have to stay in sync with your Oct 30, 2023 · Ryzen 7800X3D @ 5. Infiniti fabric clock is the speed of your cpu is communicating with your ram, if you will. Imagine a Ryzen CPU running at over 9000Mhz memory speed - you don't have to imagine anymore. 0. Presumably, this is where overclocking in the bios using Why is your infinity fabric and memory controller running at such a weird speed? Should be 3000 for the mem controller and 2000 for the fabric, weird your 1996/2994. This is automatic. 15v is the sweet spot for this chip with most mobos. Since you're using Gear 2 with DDR5 RAM, I'm pretty sure the Infinity Fabric clock actually has to be set to 1/4 of your ram speed. You can go past 6000 with different rated kits, sure. Apr 10, 2023 · It tops out at somewhere between 2000MHz and 2200MHz. CPU: RYZEN 7800X3D. They don't use DDR5-4267 though because in almost all conditions it would fall short of that 66. This, too, is automatic. The 3D vcache can give anything from a nonexistent to up to a 50% performance benefit over the 7700x looking at benchmarks. RAM: 32GB G. BIOS Version: The latest one off their website as of yesterday. 6000MHz CL30 is the best for Ryzen 7000. Anything above 4800mhz is technically overclock, expo/xmp in bios for overclock profile. 2. 1Ghz on all-core load. For me is GDM disable no go. This fabric should be 1:1 with ram speed as this causes it to be in coupled mode, which reduces latency significantly which is much more important to preformance than having We would like to show you a description here but the site won’t allow us. Much less reliance on RAM. I've seen some people are able to make it work at 2200, but I suspect that leads to instability at higher transfer rates. My RAM is G. 5=5. 3600 Mhz DRAM and 1800Mhz Infinity Fabric. 3% faster than the 5800X3D. They mentioned that they only used 6000mHz RAM for AMD compared to 7200 for intel. Otherwise that will be fine it supports 6000mhz - higher than that is iffy with stability issues. 15ghz BCLK OC, TG AM5 High Performance Heatspreader: Motherboard: ASUS ROG Strix X670E-I, chipset fans removed: Cooling: Optimus Block, HWLABS Copper 240/40 + 240/30, D5/Res, 4x Noctua A12x25, 2x A4x10, Mayhems Ultra Pure: Memory: 32 GB Dominator Platinum 6150 MT 26-36-36-48, 56. At least that is what my internet research told me. So I just bought myself a 7800x3d and some Trident Z5 6400 cl32. I have a ryzen 1600 and some B-die 3200 Apr 16, 2023 · Ryzen 7 7800X3D: $449: 8 /16 : 4. Apr 16, 2020 · AMD Ryzen 7 7800X3D: Motherboard: Gigabyte X670E Aorus Master: Cooling: Noctua NH-D15 SE with offsets: Memory: 32GB Team T-Create Expert DDR5 6000 MHz @ CL30-34-34-68: Video Card(s) Gainward GeForce RTX 4080 Phantom GS: Storage: 1TB Solidigm P44 Pro, 2 TB Corsair MP600 Pro, 2TB Kingston KC3000: Display(s) Acer XV272K LVbmiipruzx 4K@160Hz: Case Basically the 7800X3D is a 7700x that's a little lower clocked but has 3D vcache. So I wonder how high can IF be overclocked in reality, especially on dual CCD chips like 7950 and 7900. Or check it out in the app stores Home **CPU** | [AMD Ryzen 7 7800X3D 4. The higher speeds can only be done on two sticks as DDR5 really struggles with speeds higher than 4800 when you use 4 sticks. Welcome to /r/AMD — the subreddit for all things AMD; come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. Interesting that they mention trying their Hynix a-die (that worked well over 7000 mt/s on z690,) but it doesn't work above 6400 on x670. They lowered it to 1733mhz and it resolved it. We would like to show you a description here but the site won’t allow us. Or you can just test it like you would a RAM OC. For ryzen 8000… due to the igpu using ram as vram… the faster the memory the better. MCLK 3100. Skill F5-6000J3038F16GX2-TZ5N (30-38-38-96). 3DMark CPU Profile 3. With each such article, we're beginning to love the Ram speed doesn’t quite match infinity fabric Help (General) Hi there, I’m using 3600mhz RAM but in Hwinfo 64 it shows my memory clock at 1796. UCLK can only reliably handle a 1:1 ratio at 6000MHz and below. What chip set are you using? Bump up to a B550 motherboard for compatibility until 2022+. A full AMD CPU has a communication substrate called infinity fabric and 2-N of these chiplets tossed on top of the substrate. I cant see the option to change the infinity fabric clock in ryzen master. with RAM and infinity fabric at 1600 through ryzen master i got: 3533 and on a 2nd test 3494. 3DMark Timespy 3. Regardless of what the speed or timing is, UC needs to be 1:1 and not /2 and Fabric Freq is 2033Mhz no higher no lower. I've noticed running JDEC 4800MHz w/6000MHz OC its changed my framerate overall performance to be much smoother and better We would like to show you a description here but the site won’t allow us. Have you tried doing anything with the infinity fabric speed? Says it needs to be adjusted to whatever speed RAM you have. So the memory controller is much better than Intels in that it can run dual rank configs to at least 6000 mt/s, and it seems to run pretty tight at single rank 6400, comparable to Intel platform, but then it completely shuts down single rank above 6400 mt/s. My motherboard is a asus rog strix B650-A Gaming Wifi. Somewhat concerning, but it does say 6000 is an approved speed with OC. Ryzen 7000 has a permanently desynched FCLK, so no matter what frequency you run the memory at, the FCLK will default to 2000MHz, whether it be 4800MHz or 6400MHz. 67 GB/s. I recently built a new PC with a 7800x3d and a Gigabyte X670E Master mainboard. A question for 5800X3D owners. So, on many reviews I've seen online I see this cpu scoring above 10k Cinebench R20 in supposedly stock settings (no pbo), and clocking as high as 4. I recommend you go for DDR5-6000 with the tightest timings you can get. If you are running 7200MHz or above, select UCLK=MEM/2. So. However reaching those speeds and having a stable system seems to be difficult to achieve. 2x16 is plenty for gaming, 2x32 is overkill unless you have a specific need for it. IntelligentRoyal8117. 8-4. It does this based on several factors. Average performance is more like 20-30%. ADMIN MOD. This ends up hurting performance more than the extra RAM speed helps. I think most B-dies are and perform similar even if they are sold as different speeds. This should be everything i have changed in bios unless i missed something. People seriously underestimate the difference having GOOD ram makes for Unreal Engine games. Ryzen 7 3700x + ddr4 3800mhz. It's the better answer. Just loosen your timings to 18-22-22-42 or even higher to guarantee the stability of the RAM so you can be sure any errors are due to IF. You can manually lower the infinity fabric speed multiplier to 1:2 and boot the CPU on higher RAM speeds (6400, 6600, etc) but the performance would be awful because the CPU is basically throttled to half speed for the memory controller. 4% to 5. Built my first custom loop! (7800x3d & 7900xtx) Battlestation / Photo. Keep in mind that the AMD is a much cheaper CPU. The below chart (via: @harukaze5719, from Chiphell) shows the ideal fabric speed when paired with DDR5-6000 RAM: We would like to show you a description here but the site won’t allow us. Even getting higher clocks and running lower speeds aren't stable for everyone, and performance results past the infinity fabric may not compare measurably with the speed difference, and may not compliment the money spent for that margin. and. DRAM Speed (MCLK): If above 6000MHz but below 7200MHz set to 6000MHz. There's a lot more to performance than clock-speed. The highest benchmarks for Factorio usually get there by way of high memory OC to increase memory bandwidth. EXPO 1 and 2 increases latency to 70ns and lowers read score. 13900k, you'd probably need to OC and tune RAM to get better results than the 7800x3d. But generally it will at least be close to the I9, or better on games where the larger L3 cache are particularly beneficial. 6ns AIDA, 2050 FCLK, 160 ns tRFC, active cooled So, it is my understanding that for ryzen cpus, there is a thing called "infinity fabric", which is basically the speed at which information is transferred within the cpu. Used to be able to get 3733 MT/s RAM working on a early production 3700x, but my bro's PC has started crashing recently. Fire up hwinfo64 and read the infinity fabric value. From my testing zen3 suffers a 3-5ns memory latency in adia when running desynced. Memory clock, the speed of your DDR4, or "Mclk. If it is 1866mhz, then your kit is 3733mhz correctly and it can't go higher. However, in the AIDA64 memory benchmark tool my read speeds never exceed roughly 64000MB/s (latency 66ns), which I think is significantly lower than what it should achieve. I've seen SkatterBencher achieve good results but his method is too hard for me to DDR5 6000 RAM slow speeds. Dec 7, 2023 · In addition to updating the sub-timings, I also overclocked the infinity fabric to 2167. 7800x3d also doesn't struggle with 6000MT/s. The infinity fabric interconnect on the CPU tops out at about 2133mhz with a width of 32B which allows a theoretical peak bandwidth of ~66. Above 3733 the memclck/infinity fabric memory controller ratio “decouples” and you suffer a performance hit. Ram can go usuall to 6200-6400MHz on CL30-32, top bins with great memory controller (for Zen4 standards) can do 6600-6800MHz (ha, good luck finding them), Think of anything over 6200MHz as positive suprise. Just got my 7800x3d installed, and figured I would share my SP score so we can all compare. 13 votes, 32 comments. Skill Trident Z Neo DDR5-6000 CL30 would be a good choice for the 7800X3D. At RAM clock rates beyond 6000 Mbps, the UCLK automatically goes into 1/2:1 mode, better known as 1:2. Or 2033 for the fabric is apparently better then 2000 with 6000 ram. 7b) - G. So the fabric lets all the chiplets communicate ultra fast and behave as though the four 4-core chiplets are a single 16 core cpu. AMD's Zen4 CPUs are pretty sensitive to RAM speed and slower We would like to show you a description here but the site won’t allow us. 5ns. Most people tweak the timings for 6000 stable and leave it alone. The 7800X3D has some small advantage in less multi-threaded games or where Windows scheduling is failing the 7950X3D. 240hz for 4800mhz ram, 3000 for 6000, etc. 0 : 104MB (8+96) 120W / 162W : DDR5-5200 AMD only allowed overclocking the memory and Infinity Fabric for the previous-gen 5800X3D but now allows both not exactly shure if they maybe have limited the speed of the infinity fabric to not work faster, if thats the case you could maybe run your ram at 3200 with lower cl timings and be as fast as you are now with runing it at 3600 Sep 27, 2022 · The Infinity Fabric or FCLK also runs a bit faster than on Zen 3, but not at 3000 MHz by far. my the CPU temperature did increase a bit but so far i do not see any changes in performance. skill 64GB (2 X 32GB) 6000MTs CL32 ripjaws s5 dual sided ram. Motherboard: MSI X570 Gaming Edge Wifi. • 3 yr. 6-4. Mar 20, 2023 · Your read speed is fine, its normal for single CCD. You'd only use those in the event of using 4 sticks of ram, which by necessity of the infinity fabric will only run at lower speeds than the xmp rating of 2 sticks. See this diagram. However, the 6000 CAS 30 DDR5 memory available at Microcenter is apparently not approved for EXPO according to ASRock's QVL list. Still, it’s a moot point since this option should be for a cheaper setup but the higher speed ram We would like to show you a description here but the site won’t allow us. 2GHz-5. My motherboard is the ASUS ROG Strix B650-A Gaming WiFi with a Ryzen 7800X3D processor. I know that it is theoretically possible to set the Infinity Fabric speed to 2000MHz and have 4000Mhz RAM so the fclk and and the RAM speed have a 1:1 ratio. For ryzen 7000, the optimal setup is 6000 cl30. I have Teamgroup Delta-R RGB 3000 mhz CL16 & a 3700X. Above that level, you can be lucky, 6200 should be doable as well, 6400 (3200 IF EDIT :2000 IF I forgot it was 3:2 divider) or higher it won't either boot at all or you need to desync the Infinity Fabric clock (edit again, I was wrong totally Due to how the infinity fabric is connected to the cores on Ryzen 7000, single CCD CPUs like yours have relatively low memory speeds and can't approach the theoretical ~100GB/s limit of ddr5 at ~6000. 7800x3d SP Scores. Get the Reddit app Scan this QR code to download the app now. I've just upgraded my gigabyte bios to version F63c (from memory) and I now have the option to change the cpu clock ratio speed of the 5800X3D. It handles that just fine. Really sensitive. GPU: 2080 TI. 7b update BIOS for your AM5 System and you will be blowing intel systems out of the water with your ram speed. 3733 would be the max speed you would want if you can hit it and have decent timings. I saw some post with kind of the same configs with lower latency, so maybe I Slowly increase the infinity fabric (memory controller speed) frequency from 2000 to 2066, and then higher later on. Motherboard: ASRock B650 Livemixer. If youre just gaming the 7800X3D is the best processor out there. For compute workloads that are heavy on memory bandwidth, remain at 4133MT/s. • 4 yr. 8. My rig: - 7800x3d stock settings. And then I was scrolling through reddit and seen posts that the 7800x3d works best with 6000 cl30. Link We would like to show you a description here but the site won’t allow us. Turns out, this is 1/3 of the listed speed of DDR5-5200, which is the natural pairing. I recently built a new PC with Corsair 6000 MHz RAM (32 GB). The game latency is a little high because I'm uncapped so the GPU is starting to get bound, if I cap at like 240 its like 3-5ish ms because I'm not getting GPU bound. 5200 is the official RAM speed, but you can go up to 6000 with XMP or EXPO profiles. ago. * 100GB/s of memory bandwidth is a formidable spec. So to get to the purported "sweet spot" of DDR5-6000, you need your FCLK to be able to handle 2000 MHz. Similarly 7950x3d handles 6000MT/s and higher just as well as 7800x3d. 4% higher overall then stock and 3% on CPU. Expo on to 6000MHz and put infinity fabric to 3000MHz. Why limit myself to only 6 cores per CCD, which incurs a significant bandwidth bottleneck, when I can have 8 cores per CCD, meaning a game can fit on one CCD, meaning the data does not have to go across the infinity fabric. The 7950X3D has a small advantage in some more multi-threaded games and because of clock speed. Basically any Ryzen 7k can boot 6000mhz ram that goes in sync with the 3000mhz infinity fabric clocks. Never seen it hit the advertised 5. 85ghz. Modern SSDs connect to the CPU via PCIe through the infinity fabric. Jun 9, 2020 · A2 and B2 are the primary gateways, A1 and B1 are the secondary gateways. Computer Type: Desktop. Recently upgraded from an 8 year old i7-8700k w/32GB 3200 CL16 to a 7800x3d w/64GB 6000 CL30. Share chas1723. To put it simply: 100x48. Ryzen DRAM Calculator's built-in membench tab has a "memtest" option which actually uses HCI memtest. I use EXPO tweaked in bios. Also the 6000MT/s thing is because of how the Infinity Fabric works. RAM OC with BZ timings on Ryzen 7800x3d with 6000 CL32 kit I have set infinity fabric to Infinity fabric Uncore clock to memory ratio is probably limiting you. Other tests show scores on the high side of 9k with clocks between 3. Also depending on your cpu you might not even be able to hit 3800 stable regardless of AMD Ryzen 7 7800X3D Eight Core CPU (4. If you don't know running a uncore to memory speed ratio of 1:1 above/around 6400 breaks stability. Infinity Fabric Clock (FCLK): 2000MHz (Use Linpack to test OC, never go above 2200MHz. The higher speeds don’t help. . I'd only consider returning if the CL is high. AMD's Ryzen 7 7800X3D is everything that gamers want: eight fast cores, in a single CCD, with 3D VCache stacked on top at a price point of $450. But it's all heavily game dependant. Like the other user said, Large FFTs with run-in-place OFF. Share. That's why I'm looking at the ASRock 650E Steel Legend as my mobo instead of the expensive ass ProArt 650E Creator. There's no need to go higher than 6000 for the memory, you want the memory to run 1:1 with max Infinity Fabric speed so 6000 is what you want, just get the lowest timings you can find for a reasonable price. 8% increase from stock depending on threads. When you run in 2:1 mode, Ryzen's memory interface system gets a horrible memory latency penalty because the RAM isn't in sync with the Infinity Fabric. So I checked the AMD website, and it said it only supported 5200. 1. GPU: Powercolor Hellhound 7900XTX. CPU: 3700x. Just finished my very first loop! It was quite a challenge, mostly due to the case, an NZXT H5 Flow. G. Yours are 3200, 3200 and 2133, so it's a 3:3:2 ratio 2:1:1 is a different config, for example 3900:1950:1950 (for 7800mt/s with 1950fclk and 1950 uclk in sync). 5=4. One of the main purposes for this upgrade was improving performance in games like Factorio. This is equivelant to the peak theoretical bandwidth of dual-channel DDR5-4267. It's not just 7800x3d that likes 6000MT/s, it's Ryzen 7000 in general. I'd ultimately like to overclock it without messing with the BCLK. Given you had a slight degraded performance, I fear it won't be at 1866 but slower. In our review we can confirm that 7800X3D is indeed the fastest gaming CPU available, beating Intel's 13900K and even the 7950X3D. DDR5-8000 + 7800X3D, 1440p low DX12, = 300FPS+ 1% lows. 4ghz. ATA-Music. It’s just due to how AMD designs their CPUs with using infinity fabric. How high you can go is going to depend on your cpu though. /r/AMD is community run and does not represent AMD in any capacity unless specified. 9450pts with clocks hovering around 4. In my own experience,1. Yes, provided your board has a secondary clock generator which allows easy Bclk tweaking. 6200MHz if you're lucky and 6400MHz if you're a silicon lotto winner. Observe your CPU SOC voltage again, if it is higher than before, slowly decrease it while your system is still stable. 50c is perfect fine at "idle". Averaged across all 53 games, the i9-13900K is a negligible 1. I had a 10k spm megabase that was down to about ~28 ups on my old pc. 1st M. 0GHz/104MB w/3D V-CACHE/AM5) Motherboard. For example your ram is at 3600Mhz (that is in real Life 1800MHz because it is double data rate (ddr) and your Flck is at 1800 you For gaming 7800x3d is probably the better choice. If you can't get high enough to match your ram speed, adjust your ram speed down to match the highest fabric speed, then you can start bringing down your memory timings to get a bit OC numbers. The case really wasn’t designed for a custom loop at all, so I had to get creative with tubing runs and pump placement, andI was pretty limited with how much The alternative is 3200 mhz/CL14 RAM if you can find it cheaper than 3600/CL16, as one can easily run a stick rated for the former for speed/timings as the latter. cinebench R20 with RAM running at stock speed: 3523. It can handle higher transfer rates too. If your workload has lots of threads, most of them with little demand and some very demanding then Intel is a perfect fit. Consequently, there can no longer be a 1:1:1 config with DDR5-6000, as there was with Zen 3. 16GB NVIDIA GEFORCE RTX 4080 - HDMI, DP, LHR. The 7800x3d benefits from the V cache in some games more than others, so you could look for tests on the games you play. Good idea ? Ya got nay ? Nay. 0) - RGB Ready! Memory (RAM) 32GB Corsair VENGEANCE RGB DDR5 5200MHz (2 x 16GB) Graphics Card. Now here's my question do I need to manually change the infinity fabric to 1800 after enabling the XMP Profile of my RAM? Or does it automatically change into 1800? They already do, just wait for the Agesa 1. Looks like they had 6000mhz memory If you go faster than DDR5-6000, the infinity fabric speed gets cut in half due to how the infinity fabric interacts with the RAM. Overclocked to 3200 Mhz CL16 ( from MSI Memory Try It menu) and made sure the IF to be at 1600 mhz. Seems to me the first thing to wear out on Ryzen CPUs with age is the infinity fabric. 6000mhz 30cl is best as other have said. The save file is quite large (180 MB) so I know it exceeds the cache on the 7800x3d, but Apr 16, 2020 · System Name: Overlord Mk MLI: Processor: AMD Ryzen 7 7800X3D: Motherboard: Gigabyte X670E Aorus Master: Cooling: Noctua NH-D15 SE with offsets: Memory: 32GB Team T-Create Expert DDR5 6000 MHz @ CL30-34-34-68 Sep 18, 2022 · This essentially (nearly) doubles DRAM speeds, outpacing the Infinity Fabric connecting the core and uncore CPU components. If I go to "creator mode" and "couple" them, the memory clock drops to 1067 instead of the fabric clock increasing in speed. Infinity Fabric and RAM Speed. A2 is the most direct link, and used by AMD as the Primary port, the only port for a single, high speed stick. It will back off clocks based on need, temp and power limit. In my experience it has been better to increase memory + Infinity Fabric frequency for higher bandwidth than to lower RAM timings, but again the difference between 3600 and 3800 is a lot less than the 5% difference in speed because it just isn't really a bottleneck to higher performance like it can be on rest of the Zen3 lineup. Skill 6000MT/s DDR5. Help Request - CPU. Hey all, Keep in mind when tuning your 7800X3D of your Uncore Freq and Infinity Fabric Freq. xj vo qd le fi oy rq ri su zy