Summary of performance
The first pair of diagrams shows the
advantage of the Radeon HD 7790 1GB over the Radeon HD 7770 GHz Edition 1GB and
the gap between it and the Radeon HD 7850 2GB.
Chart
comparing the results
As we can see, the AMD developers and
marketers who have achieved the target accurately. The Radeon HD 7790 is
exactly halfway between the HD 7770 GHz Edition and the HD 7850 in terms of
performance. the HD 7790 is an average 32% ahead of the HD 7770 GHz Edition
across all games whereas the gap from the HD 7850 is about 30%. AMD should have
released this graphics card a long time ago to fill the gaps in their product
line.
Now let us see how the Radeon HD 7790 can
be compared with the default Radeon HD 7850 when clocked at 1,220/6,640 MHz.
Chart
comparing the results
Our overclocking process is quite
rewarding, the Radeon HD 7790 is close to the next step in AMD’s product
hierarchy. Almost as expected, it is only in games that need more graphics
memory that the increased clock rate can’t help bridge the gap.
Now here’s the same pair of diagrams for
the GeForce GTX 650 Ti Boost: in comparison with the original GeForce GTX 650
Ti (right) and the GeForce GTX 660 (left).
Chart
comparing the results
So the GTX 650 Ti is 22-33% more advanced
than the universall version, depending on the graphics quality settings, and
reduced 12-14% compared to the GTX 660. Thus, the GeForce GTX 650 Ti Boost is
closer to the GTX 660 Ti rather than the GTX 650 Ti. There is no hesitation
that it can beat the GTX 660 when overclocked:
Chart
comparing the results
The next chart compares GeForce GTX 650 Ti
Boost 2GB with Radeon HD 7790 1GB, the latter serving as a baseline.
Chart
comparing the results
The two cards belong to the same product
class, yet there’s a twofold difference in their memory amount and a $20
difference in price. Anyway, we have not included the low performance of the
Radeon HD 7790 in certain games due to its graphics memory, the GTX 650 Ti
Boost is an average 18-33% faster, depending on graphics quality settings.
Energy consumption
We measured the power consumption of our
testbed equipped with different graphics cards using a multifunctional Zalman
ZM-MFC3 panel which can report how much power a computer (without the monitor)
draws from a wall outlet. There are two test modes: 2D (editing text in
Microsoft Word or surfing the web) and 3D (four runs of the introductory scene
from the Swamp level in Crysis 3 game at 2,560x1,440 with maximum image quality
settings, but without MSAA.).
Let's take a look at the chart:
Energy
consumption chart
As we can see, the configuration of our
computer with a relatively fast CPU, consumes less than 450 watts regardless of
the graphics card. As expected, the Radeon HD 7770 GHz Edition and GeForce GTX
650 Ti need more energy than other models whereas the GeForce GTX 660 is the
most economical. However, the difference between the graphics card on power
consumption is too small to influence the choice of your shopping.
Conclusion
As we have seen in our tests, the Radeon HD
7790 and GeForce GTX 650 Ti Boost successfully complement the current line-ups
of AMD- and Nvidia-based solutions. The previously model located between Radeon
HD 7770 GHz Edition and Radeon HD 7850 while the latter closer to the GeForce
GTX 660 in terms of performance. Both cards overclock well, the GeForce GTX
650 Ti Boost being even capable of accelerating to the speed of its senior
cousin. Although the Radeon HD 7790 is positioned as a competitor to the
GeForce GTX 650 Ti Boost when considering the price of them, then Nvidia is
faster, in some games even much faster. Radeon HD 7790 is located between the
GTX 650 Ti and the orignial GTX 650 Ti Boost. Furthermore, we want to
encourage you to buy a 2GB version of the Radeon HD 7790 which wouldn’t have
problems at high settings, especially as the extra 1 gigabyte of memory doesn’t
cost much.
That is not our final review of these
graphics cards. We’ll soon test a number of serially manufactured Radeon HD
7790 and GeForce GTX 650 Ti Boost. Stay tuned!
