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Request: 980ti SLI Benchmarks

LegendaryDread said:
Gen 2 x16 offers identical performance to Gen 3 x8
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I just redid the ROTTR bench on Gen 2 and it's dropped 10%. :eek:


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And, Firestrike scores for x8/x8. There's a clear difference from x16. It appears to make a bigger difference than 6 cores over 4.


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Far Cry Primal x8/x8


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Far Cry Primal x16/x16


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This appears to go against the trend, until you realise SLI scaling is poor therefore the bandwidth is moot.
 
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x8/x8 benchmarks. I'm done for now as there's a good mix of games and synthetics.

Early indications are that bandwidth does make a difference, as much as 10% which equates to a decent overclock.


DA:I


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Metro LL Redux


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Valley


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Heaven


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Thanks for benchmarks guys! Much appreciated.

I'm surprised there is that much of a difference, 10% at times is quite a gap. However I still think even at x8+x8 it would be worth the performance increase to SLI and especially with the prices of the 980tis now.
Not sure its worth a MB upgrade to :)
 
razorpakk said:
I'm just curious, why are you putting this effort in it when there are dozens reviews online?
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I've seen it disputed so often, I wanted to see for myself with equivalent clocked cards (which is crucial).

Here's an example, the first result in Google...

http://www.tomshardware.co.uk/answers/id-2054999/whats-sli-pci-x16-x16.html

You are correct that two x16 lanes will give the best performance. However, all multi GPU will only ever have the need for dual x8 lanes, for now. The performance difference between two x16 lanes and two x8 lanes is very minimal, at best. Something like 1600 CL9 RAM vs 1866 CL9 RAM.
Click to expand...

A motherboard running at x8/x8 is considered optimal without breaking the bank for a minimal performance increase.
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Now that I have seen the difference can actually be equivalent to a decent overclock on the GPU, I'm starting to wonder at the point of a 5820k for gaming? What is the point of a 28 Lane extreme chip for gaming? If there's no extra bandwidth to be had, then why not just go for a 6700k?

I'd like to see some 5960x and 5820k benchmarks as well as some i5's. Probably wishful thinking as it's restricted to specific cards, but if people pop their head in and offer a result or two then all the better.
 
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I'd need to know the actual clock speed was 1418, as this looks like it was higher.

Sorry.

We need specific cards set at specific clock speeds.... and I fear it's partly the reason there aren't too many bench scores submitted here, but it's the only way we can be sure to have compared "apples to apples".
 
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