Hello staff, researched their configuraçãos but I'm still doubt in their performance in octane.
And wanted to know which of these videos plates would perform better.
Thank's.
GT 755m sli vs GTX 770m
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It's easy. Take them in this order
1. More cores the better
2. More Mhz per core the better
3. More Memory the better
So 755M should be around 384 cores as I recall. That's around 700 if you have two of them(SLI)
770M has 960 cores
So formula is: number of GPU's * number of cores * Core Frequency/1024
(this is for getting performance in Ghz, you can skip dividing by 1024)
For 755M SLI is : 2*384*980/1024 = 735 Ghz
For 770M is: 1*960*811/1024 = 760 Ghz
Now one last thing to consider. SLI decreases OR performance. So the real performance will actually be below the 735Ghz score point, increasing the gap.
So your choice would be the 770M
Cheers
1. More cores the better
2. More Mhz per core the better
3. More Memory the better
So 755M should be around 384 cores as I recall. That's around 700 if you have two of them(SLI)
770M has 960 cores
So formula is: number of GPU's * number of cores * Core Frequency/1024
(this is for getting performance in Ghz, you can skip dividing by 1024)
For 755M SLI is : 2*384*980/1024 = 735 Ghz
For 770M is: 1*960*811/1024 = 760 Ghz
Now one last thing to consider. SLI decreases OR performance. So the real performance will actually be below the 735Ghz score point, increasing the gap.
So your choice would be the 770M
Cheers
SLI/multi-GPU can be disabled in the NVIDIA control panel so this it nothing to worry about.
It is recommended to turn this off for octane because some users have crashes and memory issues when it is on.
With it off, two identical cards should render twice as fast as one.
My personal opinion is that one, more powerfull card is almost always a better idea. In this case i think it will be, both in terms of speed and VRAM.
Thanks
Chris.
It is recommended to turn this off for octane because some users have crashes and memory issues when it is on.
With it off, two identical cards should render twice as fast as one.
My personal opinion is that one, more powerfull card is almost always a better idea. In this case i think it will be, both in terms of speed and VRAM.
Thanks
Chris.