Nvidia GTX770 or AMD HD 7970

didgemaster

didgemaster

didgemaster

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I will be building a new computer shortly and can not decide on the GPU should I go for Nvidia GTX770 or AMD HD 7970? When funds allow I will add another :)

rest of the setup that I think I'll buy:

YOUR BASKET
1 x Intel Core i7-4770K 3.50GHz (Haswell) Socket LGA1150 Processor - Retail £275.99
1 x Corsair Professional Series HX+ 850W '80+ Gold' Modular Power Supply (CP-9020032-UK) £149.99
1 x Samsung 250GB SSD 840 EVO SATA 6Gb/s Basic - (MZ-7TE250BW) £142.99
1 x Gigabyte Z87-D3HP Intel Z87 (Socket 1150) DDR3 ATX Motherboard £109.99
1 x NZXT KRAKEN X40 AIO Water Cooling Unit - 140mm £78.98
1 x TeamGroup Xtreem LV 8GB (2x4GB) DDR3 PC3-21300C11 2666MHz Dual Channel Kit (TXD38G2666HC11CDC01) £74.99
Total : £844.33 (includes shipping : £9.50).

 
Go for the 7970 or a 280x (same cards really) over the 770 as you get a wider memory bus 384bit vs 256bit and an extra gig of ram.

Performance not a lot in it unless you get a toxic or matrix version then when you clock these they leave a 770 in the dirt.
 
With respect to mining it came down to the AMD cards having more shader cores utilising integer operations, I am not sure if it's so clear cut these days especially as folding is different to cryptocoin mining.

Out of your options listed I would choose the 7970 as CB has answered perfectly.
 
They have roughly equal PPD but the Nvidia OpenCL driver uses a full core for each card whereas the AMD driver does not.
 
I have 8 cores running boinc and three nvidia cards folding and they take less than 1% of cpu time per card.

20131103_163336.jpg
 
So if Nvidia achieves roughly the same ppd with a terrible implementation of OpenCL, the moment it is better or there is a JIT compiler for NVidia, the ppd will rocket past AMD again.
 
Maybe.. I don't think any OpenCL changes will improve it much, but yes a JIT compiler may help a lot.
 
MikeTimbers said:
So if Nvidia achieves roughly the same ppd with a terrible implementation of OpenCL, the moment it is better or there is a JIT compiler for NVidia, the ppd will rocket past AMD again.
Click to expand...

Biffa said:
Maybe.. I don't think any OpenCL changes will improve it much, but yes a JIT compiler may help a lot.
Click to expand...

Any ideas on time scales for this?
 
No idea unfortunately, I think it will take Nvidia getting serious about OpenCL, at the moment they are happy in their CUDA bubble. And why not? They invested huge amounts of money into it and have been reaping the rewards where it counts most, in the scientific research community and their Tesla cards.
 
doing a little more research it seems that the 7970 uses more electricity than the GTX770 can anyone point me to some points per watt stats?
 
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