1600 in XMP vs 1866 standard - Which one offers better performance?

By thekingofmonks
May 14, 2021 in CPUs, Motherboards, and Memory

Posted May 14, 2021

Title says it.

Context: I'm limited to a 1600 board/cpu and an 1866 kit and I don't want to bother changing the timings because I'm lazy.

Which one's better?

Asus ROG G531GT : i7-9750H - GTX 1650M +700mem - ~~MSI RX6600 Armor 8G M.2 eGPU~~ - Samsung 16+8GB PC4-2666 - Samsung 860 EVO 500G 2.5" - 1920x1080@145Hz (172Hz) IPS panel

Family PC : i5-4570 (-125mV) - cheap dual-pipe cooler - Gigabyte Z87M-HD3 Rev1.1 - Kingston HyperX Fury 4x4GB PC3-1600 - Corsair VX450W - an old Thermaltake ATX case

~~Test bench 1 : G3260 - i5-4690K - 6-pipe cooler - Asus Z97-AR - Panram Blue Lightsaber 2x4GB PC3-2800 - Micron CT500P1SSD8 NVMe - Intel SSD320 40G SSD~~

iMac 21.5" (late 2011) : i5-2400S, HD 6750M 512MB - Samsung 4x4GB PC3-1333 - WT200 512G SSD (High Sierra) - 1920x1080@60 LCD

Test bench 2: G3260 - H81M-C - Kingston 2x4GB PC3-1600 - Winten WT200 512G

Acer Z5610 "Theatre" : C2 Quad Q9550 - G45 Express - 2x2GB PC3-1333 (Samsung) - 1920x1080@60Hz Touch LCD - great internal speakers

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Posted May 14, 2021

lower is better, so it depends on what you get with XMP (without XMP at 1600MHz it will most likely be 11-11-11-28)

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

thekingofmonks and WhitetailAni
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Posted May 14, 2021

Well if your board supports 1600MHz max and you dont want to mess with anything youre maxed at 1600

Big nerd.

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Ryzen 5 1400, Deepcool Gammaxx 400 V2 Blue, Biostar B450MH, Timetec 2x8GB 3200MHz CL16, Adata SU650 240GB, WD Blue 250GB 7200RPM, Seagate Barracuda 320GB 7200RPM, MSI Aero GTX 1060 3GB, Cougar MG130G, Segotep 750W Fully Modular 80+ Gold, HP 22EB, Samsung S22E450D, Sceptre E205-W, Gamakay LK67 with Gat Reds and HK Gaming Chalk keycaps, Logitech G305 Lightspeed, Shure MV7, Gertisan Mic Arm, OneOdio Headphones, CM SickleFlow Blue Fan, Iceberg Thermal IceGALE 140MM Teal x2, Cougar case fan

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