Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))ĢTB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2 Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)Īlphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplateĢx32GB DDR4 3600 Corsair Vengeance RGB C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V) But inter-CCX communication does give a performance hit, going from 4 cores to 8 cores eroded away 5% of our frame rate.Rainbow Sparkles (Power efficient, <350W gaming load) Our One CCX SMT result was the the only result to degrade performance, by 8.6%. Some games even benefit from SMT.īrief system info (with complete RAM timings) Ĭould do with more in-depth investigation from Mr 3kliks, but generally inter-CCX communication gives a smaller performance hit than SMT. CS:GO has a performance degradation of roughly 10 - 15% with SMT enabled, so install Project Lasso or something to disable SMT for CS:GO.ĭon't disable SMT in BIOS, it is beneficial in many things. On average, SMT increases performance in synthetics by around 20-25%. Works by allocating two threads per core, when one thread is idling waiting for data the second thread can execute instructions. Two CCX no SMT (8c/8t, normal priority, no SMT threads) - 309.87 (11% increase)Ĭonclusions: CS:GO does not like SMT (simultaneous multi-threading, also known as Hyper-Threading by Intel).One CCX no SMT (4c/4t, normal priority) - 323.57 (15.9% increase). Two CCX SMT (8c/16t, normal priority) - 279.79 (100% stock baseline).Testing with 2700x (PBO Level 1, undervolted, otherwise stock), ASUS X470 Crosshair 7 Hero, RTX 2080, 16GB 3200MHz CL14-14-14-28 (low latency). The downside is core-to-core latency, as the CPU would have extended latency between neighboring cores and those in the different CCX, and it goes back to the non-uniform memory access argument with the Ryzen 7 CPUs. Toms hardware with inter/intra ccx latency chart (scroll down)Īnadtech's ian cutress briefly going over ryzen's design on his ryzen 1200/1300 reviewĪMD decided to go with the 2+2 arrangement for the quad core Ryzen parts, following on from the 3+3 arrangement on the hex-core Ryzen 5 CPUs. How to assign permanently: download process lasso Howto easy mode: set affinity on task manager Presumably this would also work in other dual core intensive games like sc2 but i dont play those other than cs.Īnd it should work the same for 1600/2600s and other ryzens.(except they are 3+3 instead of 44) you can always try it out for yourself, if it sucks it only takes 5 seconds to revert back. I ed the map because its consistent every time and dm thing is stupid because its going to be different every other time just view the benchmark map fps to compare relative increase from the baseline. Proof and more gruesome visual aids for each scenarios these numbers do not represent real game performance. My current launch options: -novid -nojoy -console -freq 144 +mat_queue_mode 2 -d3d9ex -threads 4 (obviously this was changed around testing different affinity counts, but they say its a snakeoil so who knows)Ĩc/16t smt on w/ no affinity assignment: 296.40Ĩc/8t smt OFF w/ no affinity assignment: 349.12Ĩc/16 smt on w/ csgo on 0 8 10 12 14: 386 So here's my hour wasted using ryzen 1700 3.7ghz, 2x 8gb 2933 ram, 1080 graphic card, csgo on 1024x768 all low So if you assign csgo to JUST use 4 of the physical threads in the latter CCX ie 8 10 12 14 (for some reason the first 4 doesn't perform as well) it will feel good to play cs again. The reason why ryzen can't compete with even the older intels is because ryzen's core are divided up by 2 CCX's in your processor chip, and ccx sucks at communicating with each other. SELVA (Paqueta) vs Fluxo □ CCT South Ame. LIVE: GamerLegion vs Ninjas in Pyjamas - E. NIP vs GamerLegion ESL Pro League S18 - !. Subreddit Rules Message Moderators Official CS:GO Blog Discord
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