PowerColor HD6790 1GB, SCS3 HD6850 1GB, PCS+ HD6950 2GB Graphics Cards
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Performance tests
Testbed:
- Intel Core i7-975 3340 MHz CPU
- ASUS P6T Deluxe motherboard on the Intel X58 chipset
- 6GB of 1600MHz DDR3 SDRAM from Corsair
- WD Caviar SE WD1600JD 160GB SATA HDD
- Tagan TG900-BZ 900W PSU
- Windows 7 Ultimate 64-bit, DirectX 11
- 30" Dell 3007WFP monitor
- VSync disabled
- NVIDIA Drivers 275.33, AMD Catalyst 11.6
Benchmarks:
- Far Cry 2 (Ubisoft) — DirectX 10.0, Shaders 4.0 (HDR), built-in benchmarking utility (the Middle level), maximum settings.
- Crysis Warhead (Crytek/EA) — Cargo, DirectX 10.0, Shaders 4.0, Very High settings, batch file, timedemo available by e-mail request.
- Colin McRae: DiRT 2 (Codemasters) — DirectX 11, Ultra High settings, run as follows: "dirt2.exe -benchmark example_benchmark.xml".
- Metro 2033 (4A Games/THQ) — DirectX 11, Super High settings, PhysX disabled, run from in game.
- Just Cause 2 (Avalanche Studios/Eidos Interactive) — DirectX 10.0, Super High settings, run from in game.
- Aliens vs. Predator (Rebellion/SEGA) — DirectX 11, Shaders 5.0, Very High settings, run from in game.
- F1 2010 (Codemasters) — DirectX 11, Ultra High settings, run as follows: "formulaone.exe -benchmark example_benchmark.xml". Game provided by NVIDIA.
- Tropics Benchmark 1.3 (Unigine) — DirectX 10.0, High settings.
- Heaven Benchmark 2.5 Pro (Unigine) — DirectX 11, High settings.
- 3DMark 11 (FutureMark) — DirectX 11, Performance settings.
We'd like to thank Unigine for helping us set up their benchmarks.
We already have a 880MHz Radeon HD 6950 on our diagrams, so you can easily imagine how a 850MHz one will perform. The other two cards have the same clock rates as matching solutions we have already included in the diagrams.
Far Cry 2
Crysis Warhead, Cargo
Colin McRae: DiRT 2
Metro 2033
Just Cause 2
Aliens vs. Predator
F1 2010
Unigine Tropics Benchmark
Unigine Heaven Benchmark, DirectX 11
3DMark 11
Final thoughts
Essentially, the newer HD 6770 and HD 6750 are very similar to their older counterparts from the HD 5000 series.
PowerColor HD6790 1GB GDDD5 is an excellent product: compact and very nicely cooled. The HD 6790 itself is positioned between HD 5770 and HD 6850, but is closer to HD 5770. In fact, it only outperforms the latter in DX11 tests, losing in DX10 benchmarks at times, because the GPU is cut-down much in terms of fillrate. On the other hand, it competes well with NVIDIA's solutions, GTX 550 Ti in particular. Still, it almost always loses to GTX 460 1GB. Watch the prices. If GTX 550 Ti and HD 6790 cost the same, you should buy the latter.
PowerColor SCS3 HD6850 1GB GDDR5 is a very interesting variant of the most usable graphics card today. Not only it has a great price-performance ratio, it's also silent and cool enough in terms of temperature.
PowerColor PCS+ HD6950 2GB GDDR5 is called to compete with GeForce GTX 570, but is cheaper and thus may be more attractive, being priced closer to GTX 560 Ti. PowerColor's variant boasts of very efficient and quiet cooler.
We express gratitude to PowerColor for the provided graphics cards. The PSU is provided by TAGAN, the monitor is provided by NVIDIA.
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