The nVidia GTX 680

[Dirk Broer]

nVidia has more on it's sleeve: they've released more Kepler based cards now which all have in common that they have a far better GFlop SP/Watt ratio than before, though their DP performance really s**ks (at 1/24 of their SP performance, rendering the Keplers almost useless for MilkyWay@Home. Fermi had at least a DP performance of 1/8 of the SP)

There's the following good performing cards for your CUDA-only projects:
GTX690: 18.74
GTX660Ti: 16.40
GTX680: 15.85
GTX670: 14.47
GTX660: 13.43
GTX650Ti: 13.28
GTX650: 12.69
GT640 (the 1 GB Kepler DDR3 variant at 797 Mhz that only uses 50 Watt): 12.24
GT640 (the 2 GB Kepler DDR3 variant at 900 Mhz that only uses 65 Watt): 10.63

Meaning that the SP performance of the Kepler family is pretty much up to Radeon level, but that their DP performance falls far behind that of DP capable Ati/AMD cards, except for the Cape Verdes (HD 7750, 7770, 7850 and 7870), which have their DP performance cut to 1/16th of their SP performance.

[Nflight]

I am still partial to my AMD & ATI, so here is something to drool at from AMD's offering through Sapphire: http://www.overclockersclub.com/revi...porx_ghz/3.htm

[Dirk Broer]

Now that's a card that kicks ass!
4300 GFlop SP and 1075 GFlop DP, giving GFlop/Watt Tdp ratios of 17.41(SP) and 4.35(DP), figures nVidia can only dream about, especially the latter

But there's a -not so hypothetical- HD 7990 that really starts me drooling:
7000 GFlop SP (?) and 1750 GFlop DP (?), giving GFlop/Watt Tdp ratios of 28.00(SP) and 7.00(DP), figures nVidia can only stammer about, especially the latter...

[Brucifer]

Granted the horsepower would be neat output wise, but in the real world the amount of heat and the juice to run it would put it totally out of my useability range. lol.

[Dirk Broer]

Granted the horsepower would be neat output wise, but in the real world the amount of heat and the juice to run it would put it totally out of my useability range. lol.

Wise words from Brucifer, so let's divide the camp, Tom's Hardware-like, in ranges: up to 50Watt; 51-100 Watt; 101-150Watt; 151-200Watt; 201-250Watt and finally 251-300+Watt.

up to 50Watt
1. Ati/AMD Radeon HD 6670 (DDR3 Version), with a 15.36 ratio between Watt Tdp and Gflop SP (768/50)
2. Ati/AMD Radeon HD 6570, with a 14.18 ratio between Watt Tdp and Gflop SP (624/44)
3. Ati Radeon HD 5570, with a 13.33 ratio between Watt Tdp and Gflop SP (520/39)
4. nVidia GT640 (DDR3 797Mhz version), with a 12.24 ratio between Watt Tdp and Gflop SP (612.1/50)
With a special mentioning for the DP capability of the GT640 (26 Gflop/50 Watt = 0.51)
and a special mentioning for the HD 6670 that it can be combined with a Trinity or Llano APU (and the HD 6570 in its FirePro 3900 incarnation with the FirePro A320 and A300), giving almost double the Gflops without spending more energy -you had to run a cpu anyway.

51-100 Watt
1. AMD Radeon HD 7770, with a 16.00 ratio between Watt Tdp and Gflop SP (1280/80) and a 1.00 ratio between Watt Tdp and Gflop DP (80/80)
2. AMD Radeon HD 7750, with a 14.89 ratio between Watt Tdp and Gflop SP (819/55) and a 0.93 ratio between Watt Tdp and Gflop DP (51.2/55)
3. nVidia GTX650Ti, with a 13.28 ratio between Watt Tdp and Gflop SP (1129/85) and a 0.55 ratio between Watt Tdp and Gflop DP (47/85)
4. nVidia GTX650, with a 12.69 ratio between Watt Tdp and Gflop SP (812/64) and a 0.53 ratio between Watt Tdp and Gflop DP (34/64)
5. Ati Radeon HD 4770, with a 12.00 ratio between Watt Tdp and Gflop SP (960/80) but a 2.40 ratio between Watt Tdp and Gflop DP (192/80)

101-150Watt
1. nVidia GTX660Ti, with a 16.40 ratio between Watt Tdp and Gflop SP (2460/150) and a 0.68 ratio between Watt Tdp and Gflop DP (103/150)
2. Ati/AMD FirePro V7800, with a 14.61 ratio between Watt Tdp and Gflop SP (2016/138) but a 2.92 ratio between Watt Tdp and Gflop DP (403.2/138)
3. Ati FireStream 9350, with a 13.44 ratio between Watt Tdp and Gflop SP (2016/150) but a 2.69 ratio between Watt Tdp and Gflop DP (403.2/150)
4. nVidia GTX660, with a 13.43 ratio between Watt Tdp and Gflop SP (1880/140) and a 0.56 ratio between Watt Tdp and Gflop DP (78/140)
5. AMD Radeon HD 7850, with a 12.69 ratio between Watt Tdp and Gflop SP (1761/130) and a 0.85 ratio between Watt Tdp and Gflop DP (110/130)
Enter the Ati/AMD professional graphics!

151-200Watt
1. AMD Radeon HD 7950, with a 15.93 ratio between Watt Tdp and Gflop SP (2867.2/180) but a 3.98 ratio between Watt Tdp and Gflop DP (716.8/180)
2. nVidia GTX680, with a 15.85 ratio between Watt Tdp and Gflop SP (3090/195) and a 0.66 ratio between Watt Tdp and Gflop DP (129/195)
3. AMD Radeon HD 7870, with a 14.63 ratio between Watt Tdp and Gflop SP (2560/175) and a 0.91 ratio between Watt Tdp and Gflop DP (160/175)
4. Ati Radeon HD 5870, with a 14.47 ratio between Watt Tdp and Gflop SP (2720/188) but a 2.89 ratio between Watt Tdp and Gflop DP (544/188)
5. nVidia GTX670, with a 14.47 ratio between Watt Tdp and Gflop SP (2460/170) and a 0.60 ratio between Watt Tdp and Gflop DP (103/170)

201-250Watt
1. AMD Radeon HD 7990, with a 28.00 ratio between Watt Tdp and Gflop SP (7000/250) and a 7.00 ratio between Watt Tdp and Gflop DP (1750/250)
2. AMD Radeon HD 7970 GHz edition, with a 17.41 ratio between Watt Tdp and Gflop SP (4300/247) and a 4.35 ratio between Watt Tdp and Gflop DP (1075/247)
3. AMD Radeon HD 7970, with a 16.47 ratio between Watt Tdp and Gflop SP (3788.8/230) and a 4.12 ratio between Watt Tdp and Gflop DP (947.2/230)
4. Ati FirePro V8800, with a 12.69 ratio between Watt Tdp and Gflop SP (2640/208) and a 2.54 ratio between Watt Tdp and Gflop DP (528/208)
5. Ati FirePro V9800, with a 12.09 ratio between Watt Tdp and Gflop SP (2720/225) and a 2.42 ratio between Watt Tdp and Gflop DP (544/225)

251-300+Watt.
1. nVidia GTX690, with a 18.74 ratio between Watt Tdp and Gflop SP (5622/300) and a 0.78 ratio between Watt Tdp and Gflop DP (234/300)
2. Ati Radeon Ares, with a 18.50 ratio between Watt Tdp and Gflop SP (5440/294) but a 3.70 ratio between Watt Tdp and Gflop DP (1088/294)
3. Ati Radeon HD 5970, with a 15.78 ratio between Watt Tdp and Gflop SP (4640/294) but a 3.70 ratio between Watt Tdp and Gflop DP (928/294)
4. Ati/AMD Radeon HD 6990, with a 13.60 ratio between Watt Tdp and Gflop SP (5099/375) but a 3.40 ratio between Watt Tdp and Gflop DP (1274.8/375)