GTX 690 vs Radeon HD 7970 X2
GTX 690 vs Radeon HD 7970 X2 are set to battle it out, both Nvidia and AMD have a graphics card equipped with two graphics cores belonging to their latest generations. For Nvidia, the GeForce GTX 690 is their flagship, as it has two GK 104 Kepler graphics cores on the same PCB. Lets just say that AMD does not compete directly, since there doesn’t exist a reference model 7990/HD7970 X2, its the manufacturers who have released their own versions equipped with two Tahiti XT Graphic Core Next. Today we are going to show a comparative between three different models of DualGPU graphics cards, for the Nvidia-side we have the EVGA GTX 690 and for the AMD-side the HIS HD 7970 X2 and the PowerColor Radeon HD 7990 Devil13.
Nvidia has for a long time now made available its GeForce GTX 690 in the market this is a card equipped with two cores GK 104, although at slightly reduced frequency. Specifically, the two GK 104 nuclei mounted on the GTX 690 that functions at 915Mhz/1019Mhz running with 4GB of GDDR5 memory running at 6008Mhz effective and 2x256Bits interface. Currently the only available reference version of Nvidia, so all GeForce GTX 690 on the market are exactly the same, except for some slight variation in the decor. Asus and EVGA are preparing their customized versions, but so far its only been seen by few, release date currently is unknown.
AMD has finally released a version of its reference with two Tahiti XT cores, but has given a free hand to manufacturers to make their own versions. So far the only officially released versions is the HD 7990 of PowerColor, Club3D and the VTX3D, although HIS will also release its own version. PowerColor has a model that is limited edition, we are talking about the PowerColor Radeon HD 7990 Devil13.
This card has two Tahiti XT cores in PCB, the same as those used in the AMD Radeon HD 7970. PowerColor has not lowered their operating frequencies, it is running at 925MHz range, but with a button you can switch an automatic overclock feature to run at 1Ghz. Otherwise has 6GB of GDDR5 memory running at 5500Mhz effectively and has a memory interface 2x384Bits.
Additionally, PowerColor has another model called the Radeon HD 7990, simply a more modest version that operates at a frequency of 900/925Mhz, like the Club3D and VTX3D versions, so that only the HD 7990 Devil13 stands between the HD 7990 currently offered by brands belonging to the TUL Corporation.
The other opponent is the HIS Radeon HD 7970 X2,, a customized version of HIS that we discussed a few days ago. From the DualGPU Tahiti XT cards, the HIS Radeon HD 7970 X2 is the one with the higher operating frequencies, from the series its standard operating frequencies reach 1050MHz and its 6GB GDDR5 memory at 6000MHz effectively.
Once all the cards have been mentioned along with their specs, its time to benchmark them.
Time to see who wins between the GTX 690 vs Radeon HD 7970 X2
Extreme 3D Mark 11.
In both tests we can see that the HIS Radeon HD 7970 X2 is the winner, it makes a difference in operating frequencies compared to the other models DualGPU Tahiti XT.
Alien VS Predator.
In three of the five games that have been tested, the HIS Radeon HD 7970 X2 proves to be the fastest graphics, while the remaining two games, is the EVGA GeForce GTX 690 which is victorious.
Again the HIS Radeon HD 7970 X2 back to beat the other graphs, it is the coolest graphic at rest. In cargo, the PowerColor Radeon HD 7970 is Devil13 which takes the prize, this is where it shows its graphics cores operate at a lower frequency and is also the efficiency of your cooler with three fans. The EVGA GTX 690 is the chart that best hot load, even though the Nvidia reference design is good, can not compete with custom designs HIS and PowerColor.
In consumer testing quite another matter, as the EVGA GeForce GTX 690 has a clear advantage, an advantage that is quite large in charge, since it consumes 341W versus 555W over the DualGPU Tahiti XT graphics. This certainly shows that Kepler architecture is quite efficient.
In the noise category everything is pretty much even between the three opponents, but once again the GeForce GTX 690 wins, although the difference is small between them.
The conclusion we can draw from all the evidence we have seen, is that the HIS Radeon HD 7970 X2 will be a very interesting card when it’s released, it has proven to offer great performance. The downside is that DualGPU Tahiti XT versions have a rather high power consumption rate compared from the DualGPU GK 104, showing that the Kepler architecture is more efficient than the Graphic Core Next architecture in terms of energy consumption. Graphics courtesy of Tom’s Hardware.
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