Report: GeForce GTX 750 and 750 Ti to Carry GM107 GPU

VideoCardz.com has brought the world the first photos of the new Nvidia Maxwell GPUs, as well as a number of details. According to the report, the GTX 750 and GTX 750 Ti graphics card will be carrying the GM107 GPUs in two different versions.

The more powerful GTX 750 Ti will carry the GM107-400 GPU. It will have 960 enabled CUDA cores, 80 TMUs and 16 ROPs. The memory bus is expected to be 128-bits wide. The GPU is expected to be made on a 28 nm lithographic process, and the card equipping it will have a power consumption of about 75 W. This is exactly what a PCIe slot is capable of delivering, meaning that the card might run without any extra PCIe power connectors.

The GTX 750 will carry the GM107-300 GPU. This is a similar GPU as the one found on the GTX 750 Ti, though it will only pack 768 CUDA cores along with 64 TMUs. This slightly lighter version will of course have a slightly lower power consumption, also allowing it to run without any PCIe power connectors. That said, it wouldn't surprise us if a number of manufacturers equip the cards with power connectors anyway, in order to sustain overclocked frequencies or larger amounts of memory.

Both of the graphics cards are expected to make their debut on February 18.

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Niels Broekhuijsen is a Contributing Writer for Tom's Hardware US. He reviews cases, water cooling and pc builds.

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18 Comments Comment from the forums

cramved

Thats amazing gtx 660 speed but half the power consumption and that is with out switching to 20nm process. The 800 series is going to be legendary.
Reply
DarkSable

I'm so ridiculously excited for the 800 series it's not even funny. My 670 will be upgraded to a 890, added to my waterloop, and I'll have the ultimate small form factor rig.
Reply
bison88

12623624 said:
Thats amazing gtx 660 speed but half the power consumption and that is with out switching to 20nm process. The 800 series is going to be legendary.

Not GTX 660 speed, just in shader count and clocks (if legit). It's missing a significant amount of ROPs (1/3rd) and the memory is clocked lower to top off a 128 bit memory bus vs a 192 bit leading to a vastly smaller memory throughput. The power envelope of 75w vs 140w on the same process technology should tell you something. All the tweaking in the world isn't going to get that low and maintain the same performance as a 660.The other cards coming out (860, 870, and 880) could indeed be legendary if Project Denver is everything we hope it's cracked up to be.
Reply
dragonsqrrl

It would be pretty impressive if the 750 Ti came with a 75W TDP, and not require a PCIe power connector. Leaked benchmarks suggest that it performs close to the 650 Ti Boost, although given the rumored specs I suspect the card is heavily memory bandwidth constrained. The 128-bit interface is supposedly clocked at just 5GHz, and the only reason I can think of for this is to keep the TDP at or below that magic 75W threshold. Wouldn't be surprised if overclocking the memory has a significant impact on performance. But in any case, if this is true the perf per W is better than I was expecting for 28nm Maxwell. If Maxwell can do this on 28nm, Nvidia might just hit their 2-3x perf per W estimates for 20nm.
Reply
cramved

Not GTX 660 speed, just in shader count and clocks (if legit). It's missing a significant amount of ROPs (1/3rd) and the memory is clocked lower to top off a 128 bit memory bus vs a 192 bit leading to a vastly smaller memory throughput. The power envelope of 75w vs 140w on the same process technology should tell you something. All the tweaking in the world isn't going to get that low and maintain the same performance as a 660.The other cards coming out (860, 870, and 880) could indeed be legendary if Project Denver is everything we hope it's cracked up to be.
It is even more amazing if you look at the part numbers. In kepler GK107 is mid range laptop gpu. with this card the power consumption(without going to 20nm) seems to be close to what you would find in a laptop. so if they keep the naming the same as well as the scaling interms of gk107 to gk110. The 110 had 7.5 time the cores so we could be looking at a GM110 with 7200 cores. That will be legendary.
Reply
-Fran-

Finally a good HD7770 competitor from nVidia.

Just make slim designs with them and you might get my money, nVitards.

Cheers!
Reply
renz496

if the TDP for 750Ti is really at 75w then the most impressive thing here will be efficiency aspect since it is still build on 28nm.
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de5_Roy

..... what's so good about these? these are powerful graphics processors strangled by the 128bit memory bus. without 256bit bus (for gpus like these), you get less for money.these being on 28nm is a clear sign of nvidia being fab-blocked.
Reply
renz496

12625378 said:
..... what's so good about these? these are powerful graphics processors strangled by the 128bit memory bus. without 256bit bus (for gpus like these), you get less for money.these being on 28nm is a clear sign of nvidia being fab-blocked.

most gpu around this performance level have narrowed memory interface. sometimes gpu manufacturer do it on purpose so they can put it on the performance level they want
Reply
antilycus

My ideaPad Y510 shows that my dual SLI GPU is the GK107...in a laptop... I guess I fail to understand how this is a good thing for the NON-MOBILE market. W/ K1 coming down the pipe this will change drastically for NVIDIA. I tried my damndest to find an AMD CPU + NVIDIA GPU in a laptop but they simply don't exist anymore so I had to swallon my pride and get the i7...As a person, I despise Intel and everything that they stand for. This is the first intel processor i've had to purchase in 15 years only so I could get NVIDIA..that's pretty lame.
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