The NVIDIA GeForce GTX 750 Ti and GTX 750 Review: Maxwell Makes Its Move
by Ryan Smith & Ganesh T S on February 18, 2014 9:00 AM ESTPower, Temperature, & Noise
As always, last but not least is our look at power, temperature, and noise. Next to price and performance of course, these are some of the most important aspects of a GPU, due in large part to the impact of noise. All things considered, a loud card is undesirable unless there’s a sufficiently good reason – or sufficiently good performance – to ignore the noise.
| GeForce GTX 750 Series Voltages | ||||
| Ref GTX 750 Ti Boost Voltage | Zotac GTX 750 Ti Boost Voltage | Zotac GTX 750 Boost Voltage | ||
| 1.168v | 1.137v | 1.187v | ||
For those of you keeping track of voltages, you’ll find that the voltages for GM107 as used on the GTX 750 series is not significantly different from the voltages used on GK107. Since we’re looking at a chip that’s built on the same 28nm process as GK107, the voltages needed to drive it to hit the desired frequencies have not changed.
| GeForce GTX 750 Series Average Clockspeeds | |||||
| Ref GTX 750 Ti | Zotac GTX 750 Ti | Zotac GTX 750 | |||
| Max Boost Clock |
1150MHz
|
1175MHz
|
1162MHz
|
||
| Metro: LL |
1150MHz
|
1172MHz
|
1162MHz
|
||
| CoH2 |
1148MHz
|
1172MHz
|
1162MHz
|
||
| Bioshock |
1150MHz
|
1175MHz
|
1162MHz
|
||
| Battlefield 4 |
1150MHz
|
1175MHz
|
1162MHz
|
||
| Crysis 3 |
1149MHz
|
1174MHz
|
1162MHz
|
||
| Crysis: Warhead |
1150MHz
|
1175MHz
|
1162MHz
|
||
| TW: Rome 2 |
1150MHz
|
1175MHz
|
1162MHz
|
||
| Hitman |
1150MHz
|
1175MHz
|
1162MHz
|
||
| GRID 2 |
1150MHz
|
1175MHz
|
1162MHz
|
||
| Furmark |
1006MHz
|
1032MHz
|
1084MHz
|
||
Looking at average clockspeeds, we can see that our cards are essentially free to run at their maximum boost bins, well above their base clockspeed or even their official boost clockspeed. Because these cards operate at such a low TDP cooling is rendered a non-factor in our testbed setup, with all of these cards easily staying in the 60C or lower range, well below the 80C thermal throttle point that GPU Boost 2.0 uses.
As such they are limited only by TDP, which as we can see does make itself felt, but is not a meaningful limitation. Both GTX 750 Ti cards become TDP limited at times while gaming, but only for a refresh period or two, pulling the averages down just slightly. The Zotac GTX 750 on the other hand has no such problem (the power savings of losing an SMX), so it stays at 1162MHz throughout the entire run.
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jukkie - Friday, February 21, 2014 - link
I see the GTX 750 Ti as a direct competitor to the HD 7770, so why was AMD's card left out of the list?Hmmm...
Novaguy - Saturday, February 22, 2014 - link
I thought AMD's plan is to put the 7850/r7 265 up against the 750 Ti, not the 7770. The HD 7770 really isn't the direct competitor to the 750 Ti; it's usually had around $110. I would guess that if there's anything the HD 7770 competes against, it would be the upcoming 750.th3parasit3 - Friday, February 21, 2014 - link
I'm still running a GTX460 768MB with an E8500 at stock (built in 2010), mind you my display is only 1650x1050. To me, Maxwell is a huge advancement -- not because of its ability to deliver great FPS at 1080p, but because of its power requirements, or lack thereof.AMD burned me on a faulty 5770, so I have much love for NVIDIAs driver support and performance boosts. Looks like after a four year holding pattern, 2014-15 is the year I upgrade my GPU and rebuild. Sign me up for a 750ti and a 860/870.
Grandal - Saturday, February 22, 2014 - link
These seem to be ready made Steam Box drop-ins to me. Will hit the thermal requirements at the perfect time to win the "reference" Steam Box GPU battle.Novaguy - Saturday, February 22, 2014 - link
Hmm, beyond using this to upgrade my oem boxes from radeon 7750's, I'll love to see this turned into a mid-range mobile card. 750 Ti downclocked for mobile (maybe this is the 850M/860M) would be a nice upgrade over 750M/755M and even possibly even the 760M/765M. It's already below the 75 W TDP those 760M/765M MXM cards call for....Novaguy - Saturday, March 1, 2014 - link
Just broke down and bought a 750 ti to upgrade from a 7750. Really nice, runs really cool. Definitely worth it for those of you who want to upgrade oem boxes without dealing with the psu, especially if you flip the 7750 at the usual places.dr_sn0w - Wednesday, February 26, 2014 - link
So, gurus, please tell me if the GTX 750 ti OC will support 4k resolution or not. Thanks.av30 - Friday, March 7, 2014 - link
I really would have liked to see how the vanilla 750 performed in the HTPC environment in relation to the GT 640. Any chance of updating that section of the review?kamlesh - Wednesday, March 12, 2014 - link
I m realy curious about Tegra K1 and its succsessor... Leave K1 beside for a moment and see if gtx 750 having 512 cuda cores n draws 55W and gtx 750ti having 640 drws 60W then if u calculate maxwell's each cuda (veriably) draw 0.039W(if clocked at 1ghz or abov). Means if next Tegra uses 2smx of maxwell (256 cores) it might use only 4W (CONSIDERING 20NM AND ~600MHZ CLOCK GPU) and and max 5W with entire SoC.Gadgety - Saturday, March 22, 2014 - link
Yep me too. Specially the K1 successor, even though the K1 itself is barely out. GPU per watt likely to yield amazing mobile graphics.