Overclocking Same Cards But Different Brands.
Written by: PCEGamer - 22:35 Jan-01-2018

MSI & EVGA OC Hello Game-Debate. So I've been away for awhile and some things have changed, long story short, I gifted someone my 980 as a Christmas present and in return I got an MSI GTX 960 (2gb) with intent to SLI it. Luckily, I found a good EVGA 960 card for $70. My question is; will I be able to OC them regardless of different clock speed? I first want to OC the EVGA card as close to my current instead of having one downclock for the other. Theoretically, both cards should be on the same clock speed and both can simultaneously be OC. Any thoughts about this before I give it a try? Maybe I'm missing some variables, any insight would be helpful, thanks.

MSI & EVGA Clock speed:
imgur.com/GOOGBsu


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You are missing variables indeed.
First, NOT every card is binned the same, the so called "silicon lottery" is a thing. Some cards are binned better than other by chance, some are cherry-picked at a certain binning level/quality.


For example have you noticed that EVGA has about 5-7 of each GPU with many different versions at different prices, well the more expensive ones are NOT just slightly higher clocked, especially the most expensive ones are guaranteed to be 90% binned or the top 10% of the GPUs in terms of binning quality..

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Second, there is the power delivery of the GPU, the VRMs, they play a big part too, more and higher quality ones result in better orverclocking, but cost more.


Fun fact since the RX 400 series AMD has excellent VRMs on all GPUs that you have to pay premium from nvidia's 3rd party manufacturers like EVGA, but the problem is that pesky 14nm LPP that is limiting the clock speeds, back on topic now…


Third there is the cooling solution, how much heat it dissipates and how well it cools the VRMs, many coolers, especially from ASUS, don't even bother cooling the VRMs properly, IF at all. That is also important.

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Fourth it matters which "wave"/"batch" of GPUs it is, usually the later the GPU is produced higher binned it is, that's why over time people who get their GPUs later than other tend to on average have better binned GPUs.

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And fifth and final, luck, I mean sometimes it's just luck and a variation or many variations that are NOT monitored by anybody in the physical/chemical part of the GPUs, so basically luck.

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Now surely you can overclock them both to about the same factory clock speeds, and you can overclock the lower clocked one to the factory clock speeds of the other no problems. :)


But when overclocking both above factory clock speeds, what I wrote above is what you need to take into consideration.

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Wow, missing ALOT of variables lol. Thanks a bunch man. I was totally not aware of this silicon lottery thing. Also, I got my brands wrongs, I don't have an MSI 960. Apparently, I have an NVIDIA GeForce GTX 960. https://www.techpowerup.com/gpudb/2637/geforce-gtx-960
And it would surely get pretty hot seeing as how it only has one small fan.


Maybe I'd be pushing my luck with trying to OC it lol. So I might just leave it as if, it's performance is somewhere near my old 980, which is perfectly fine since I only play at 1080p. But I might still try it, would be fun to see what happens :) Thanks once again, dude. I'll make a video if it goes anywhere.

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the reference blower style cooler gtx 960 doesn't consume much power, if you ramp up the fan you will be able to overclock it and keep it under 80C, but it will be loud.


And IDK man, but my R9 380 is due for replacement, and that's as good as a gtx 960 give or take 5% depending on the game. SLI usually yields 0-50% performance depending on the game, so that will mean that at best you will get gtx 980 or slightly higher performance from 2x gtx 960s, but the 128 bit bus with 2GB GDDR5 Vram and last gen lossless delta color compression will kill you at higher settings at 1080p
My GPU that has 2x gens older lossless delta color compression does NOT get any performance improvements beyond 3GB Vram or so varies a little from game to game, due to the low bandwidth and performance of the GPU

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SLI is when the double buffer -> doubled Vram GPUs(example 4GB gtx 960 or 8GB Rx 580) are actually useful as all the specs stack, including the bus width and thus memory bandwidth, but the Vram amount/capacity itself does NOT stack.

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