We measured the power consumption of computer systems with different graphics cards using a multifunctional panel Zalman ZM-MFC3 which can report how much power a computer (the monitor not included) draws from a wall socket. There were two test modes: 2D (editing documents in Microsoft Word and web surfing) and 3D (the benchmark from Metro 2033: The Last Refuge at 2560x1600 with maximum settings). Here are the results:
The systems with tested graphics cards are almost equal when it comes to power consumption. Comparing the new GeForce GTX 670 with the old GeForce GTX 560 Ti 448 Cores, we can see that the new card is 50% faster but needs less power, so the GK104 Kepler GPU is energy efficient indeed. Take note that the power consumption of the system with the overclocked GTX 670 only grows up by 30 watts. Even considering our six-core CPU overclocked to 4.6 GHz, any of these systems can be powered by a 500-550W PSU.
The Nvidia GeForce GTX 670 2GB has only one downside. It is too expensive. And the high price is largely due to psychological reasons rather than to its hardware properties we’ve studied in this review. Well, the GeForce GTX 670 is okay in terms of conventional pricing. It is $100 cheaper than the single-GPU flagship GeForce GTX 680 and as expensive as AMD's Radeon HD 7950 ($399). However, it is hard to imagine that its 170mm PCB with a 28nm GPU, two gigabytes of memory (memory chips have been getting cheaper and cheaper these days) and its simple and noisy cooler really costs as much $399! We guess it should be priced at no more than $299, like a true replacement to the GeForce GTX 570 (and the 560 Ti 448 Cores).
Other than that, the GeForce GTX 670 is a highly attractive product that can deliver almost the same performance as the GeForce GTX 680 for less money, consuming less power and producing the same amount of noise.
At its default clock rates the new card is almost always faster than the AMD Radeon HD 7950, so we expect the latter’s price to be corrected in the near future. The GeForce GTX 670 also supports up to four monitors, Adaptive V-Sync and new antialiasing algorithms (FXAA and TXAA). It features the NVENC encoder and boasts high energy efficiency. It’s too early yet to talk about its overclocking potential, though. We need to wait for original versions with exclusive cooling systems.
The list below contains the most interesting GeForce GTX 670 graphics card models announced recently:
- ASUS GeForce GTX 670 DirectCU II (GTX670-DC2T-2GD5) 2 GB – 1058(1137)/6008 MHz;
- Gigabyte GeForce GTX 670 Ultra Durable (GV-N670OC-2GD) 2 GB – 980(1058)/6008 MHz;
- MSI GeForce GTX 670 (N670GTX-PM2D2GD5/OC) 2 GB – 965(1045)/6008 MHz;
- EVGA GeForce GTX 670 FTW (02G-P4-2678-KR) 2 GB – 1006(1084)/6208 MHz;
- Inno3D i-Chill GTX 670 Hercules 3000 2 GB – 1020(1071)/6208 MHz;
- ZOTAC GeForce GTX 670 AMP! Edition 2 GB – 1098(1176)/6608 MHz;
- Palit GeForce GTX 670 Jetstream (NE5X670H1042-1042J) 2 GB – 1006(1084)/6108 MHz.
We are going to review the last card on this list very shortly.