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OC CPU = OC RAM

NHE1803
By NHE1803
in CPUs, Motherboards, and Memory
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Go to solution Solved by Jurrunio,

You can overclock the CPU as much as you'd like with the slowest RAM since the clock multiplier of the two components are independent of each other. What does affect both is BCLK overclocking or FSB overclocking. Once popular with older systems like Core 2 and Phenoms, it's rarely used nowadays.

 

That said, high frequency memory does help performance. I'd say get the cheaper high frequency memory like 2800 and 3000MHz ones. No need for the 3200MHz ones unless they dont cost much more than slightly slower ones

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You should pair the i5 with faster RAM (3000MHz) since you'll benefit from the higher bandwidth. 

Cor Caeruleus Reborn v6

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CPU: Intel - Core i7-8700K

CPU Cooler: be quiet! - PURE ROCK 
Thermal Compound: Arctic Silver - 5 High-Density Polysynthetic Silver 3.5g Thermal Paste 
Motherboard: ASRock Z370 Extreme4
Memory: G.Skill TridentZ RGB 2x8GB 3200/14
Storage: Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive 
Storage: Samsung - 960 EVO 500GB M.2-2280 Solid State Drive
Storage: Western Digital - Blue 2TB 3.5" 5400RPM Internal Hard Drive
Storage: Western Digital - BLACK SERIES 3TB 3.5" 7200RPM Internal Hard Drive
Video Card: EVGA - 970 SSC ACX (1080 is in RMA)
Case: Fractal Design - Define R5 w/Window (Black) ATX Mid Tower Case
Power Supply: EVGA - SuperNOVA P2 750W with CableMod blue/black Pro Series
Optical Drive: LG - WH16NS40 Blu-Ray/DVD/CD Writer 
Operating System: Microsoft - Windows 10 Pro OEM 64-bit and Linux Mint Serena
Keyboard: Logitech - G910 Orion Spectrum RGB Wired Gaming Keyboard
Mouse: Logitech - G502 Wired Optical Mouse
Headphones: Logitech - G430 7.1 Channel  Headset
Speakers: Logitech - Z506 155W 5.1ch Speakers

 

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You can overclock the CPU as much as you'd like with the slowest RAM since the clock multiplier of the two components are independent of each other. What does affect both is BCLK overclocking or FSB overclocking. Once popular with older systems like Core 2 and Phenoms, it's rarely used nowadays.

 

That said, high frequency memory does help performance. I'd say get the cheaper high frequency memory like 2800 and 3000MHz ones. No need for the 3200MHz ones unless they dont cost much more than slightly slower ones

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

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5 minutes ago, Jurrunio said:

You can overclock the CPU as much as you'd like with the slowest RAM since the clock multiplier of the two components are independent of each other. What does affect both is BCLK overclocking or FSB overclocking. Once popular with older systems like Core 2 and Phenoms, it's rarely used nowadays.

 

That said, high frequency memory does help performance. I'd say get the cheaper high frequency memory like 2800 and 3000MHz ones. No need for the 3200MHz ones unless they dont cost much more than slightly slower ones

Thanks for your answer

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You can pick up slower rated RAM and overclock it, rather than paying a lot more than you need to. Do make sure though that you get RAM that is known to overclock well and is of decent quality. For Ryzen, something like the Ballistix Sport LT 2666 RAM kits, which overclock to 3000 Mhz or above, are a good investment.

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30 minutes ago, johnukguy said:

something like the Ballistix Sport LT 2666 RAM kits, which overclock to 3000 Mhz or above, are a good investment.

I second that. My 16GB Ballistix Sport LT 2400 kit has been happily running at 2.8GHz for a while.

main PC: metal tool case computer

secondary computer: triple boot Z400 workstation

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