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2x16gb 3200 mhz vs 4x8gb 3200mhz

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4 minutes ago, xg32 said:

hardware unboxed did a test on 2 sticks vs 4, there was a definitive benefit to using 4 sticks, as long as the imc can handle it it's probably ~3% faster in general. This is good for people that doesn't oc.

That was just comparing single rank modules though iirc (2x8GB vs 4x4GB?).

In OP's case, performance should be pretty much the same between the two options, since we're talking about 2x DR vs 4x SR. I don't think it'd be worth sacrificing on future upgradability by going with 4x8GB instead of 2x16 (unless OP specifically wants four sticks for aesthetic reasons for instance).

is there any difference between the different setups both 32gb setups and i dont think i will need to upgrade later. 

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2 minutes ago, truckerlenny1990 said:

is there any difference between the different setups both 32gb setups and i dont think i will need to upgrade later. 

2x16 GB is equal or preferable to 4x8GB.

Main: AMD Ryzen 7 5800X3D, Nvidia GTX 1080 Ti, 16 GB 4400 MHz DDR4 Fedora 38 x86_64

Secondary: AMD Ryzen 5 5600G, 16 GB 2667 MHz DDR4, Fedora 38 x86_64

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What are your full specs?

 

4x8 is a bit harder on the IMC, but at the same speed and timings is ever so slightly faster due to interleaving.

 

2x16 is easier on the IMC and therefore can be more stable, and OC higher.

 

Go 2x16 unless you prefer the aesthetics or unless the 4x8 is cheaper.

BabyBlu (Primary): 

  • CPU: Intel Core i9 9900K @ up to 5.3GHz, 5.0GHz all-core, delidded
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2 minutes ago, HairlessMonkeyBoy said:

What are your full specs?

 

4x8 is a bit harder on the IMC, but at the same speed and timings is ever so slightly faster due to interleaving.

 

2x16 is easier on the IMC and therefore can be more stable, and OC higher.

 

Go 2x16 unless you prefer the aesthetics or unless the 4x8 is cheaper.

im building a new rig. 

10850k (because of 10900k availability and overpricing)

rtx3080

i wont be overclocking besides enabling xmp for 3200mhz. 

pricing is about the same, timing is about the same. im not looking at any one specific set of ram quite yet well i am considering the corsair vengence lpx kits. only because it is affordable and doesnt have rgb which im willing to pay more for no rgb

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both benefit from interleaving as 16gb dimms are dual rank, but 4x8gb is usually 1-2% faster at a given speed in benchmarks. so no big difference. most boards use a daisy chain memory topology so 2x16gb is slightly less intensive on the IMC. 4x8gb is usually 10-20 bucks more and i prefer to give myself room for expansion so i went with 2x16gb, aesthetically the 4x8gb can look nicer if you prefer a full set of rgb dimms.

topics i need help on:

Spoiler

 

 

my "oops i bought intel right before zen 3 releases" build

CPU: Ryzen 5 3600 (placeholder)

GPU: Gigabyte 980ti Xtreme (also placeholder), deshroud w/ generic 1200rpm 120mm fans x2, stock bios 130% power, no voltage offset: +70 core +400 mem 

Memory: 2x16gb GSkill Trident Z RGB 3600C16, 14-15-30-288@1.45v

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53 minutes ago, truckerlenny1990 said:

im building a new rig. 

10850k (because of 10900k availability and overpricing)

rtx3080

i wont be overclocking besides enabling xmp for 3200mhz. 

pricing is about the same, timing is about the same. im not looking at any one specific set of ram quite yet well i am considering the corsair vengence lpx kits. only because it is affordable and doesnt have rgb which im willing to pay more for no rgb

hardware unboxed did a test on 2 sticks vs 4, there was a definitive benefit to using 4 sticks, as long as the imc can handle it it's probably ~3% faster in general. This is good for people that don't oc. 

 

Now if i had to pick between 2x16 3600 cl16 vs 4x8 3866 cl15, i honestly don't know which one i'd choose til i actually plan the build.

5950x 1.33v 5.05 4.5 88C 195w ll R20 12k ll drp4 ll x570 dark hero ll gskill 4x8gb 3666 14-14-14-32-320-24-2T (zen trfc)  1.45v 45C 1.15v soc ll 6950xt gaming x trio 325w 60C ll samsung 970 500gb nvme os ll sandisk 4tb ssd ll 6x nf12/14 ippc fans ll tt gt10 case ll evga g2 1300w ll w10 pro ll 34GN850B ll AW3423DW

 

9900k 1.36v 5.1avx 4.9ring 85C 195w (daily) 1.02v 4.3ghz 80w 50C R20 temps score=5500 ll D15 ll Z390 taichi ult 1.60 bios ll gskill 4x8gb 14-14-14-30-280-20 ddr3666bdie 1.45v 45C 1.22sa/1.18 io  ll EVGA 30 non90 tie ftw3 1920//10000 0.85v 300w 71C ll  6x nf14 ippc 2000rpm ll 500gb nvme 970 evo ll l sandisk 4tb sata ssd +4tb exssd backup ll 2x 500gb samsung 970 evo raid 0 llCorsair graphite 780T ll EVGA P2 1200w ll w10p ll NEC PA241w ll pa32ucg-k

 

prebuilt 5800 stock ll 2x8gb ddr4 cl17 3466 ll oem 3080 0.85v 1890//10000 290w 74C ll 27gl850b ll pa272w ll w11

 

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4 minutes ago, xg32 said:

hardware unboxed did a test on 2 sticks vs 4, there was a definitive benefit to using 4 sticks, as long as the imc can handle it it's probably ~3% faster in general. This is good for people that doesn't oc.

That was just comparing single rank modules though iirc (2x8GB vs 4x4GB?).

In OP's case, performance should be pretty much the same between the two options, since we're talking about 2x DR vs 4x SR. I don't think it'd be worth sacrificing on future upgradability by going with 4x8GB instead of 2x16 (unless OP specifically wants four sticks for aesthetic reasons for instance).

Desktop: Intel Core i9-9900K | ASUS Strix Z390-F | G.Skill Trident Z Neo 2x16GB 3200MHz CL14 | EVGA GeForce RTX 2070 SUPER XC Ultra | Corsair RM650x | Fractal Design Define R6

Laptop: 2018 Apple MacBook Pro 13"  --  i5-8259U | 8GB LPDDR3 | 512GB NVMe

Peripherals: Leopold FC660C w/ Topre Silent 45g | Logitech MX Master 3 & Razer Basilisk X HyperSpeed | HIFIMAN HE400se & iFi ZEN DAC | Audio-Technica AT2020USB+

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