Test Results
Futuremark’s synthetic graphics suite, 3DMark Vantage, was tested with the preset option set to high and anti-aliasing and anisotropic filtering then set to 4x/16x for all tests. The high preset places the suite at a resolution of 1680×1050.
| 4xAA/16xAF |
ATI HD 4850
|
ATI HD 4850×2
|
ATI HD 4870
|
ATI HD 4870×2
|
NVIDIA GTX 280
|
| Color Fill |
3.46 GPixel
|
6.9 GPixel
|
5.5 GPixel
|
10.9 GPixel
|
6.73 GPixel
|
| Texture Fill |
651 GTexel
|
1293 GTexel
|
782 GTexel
|
1553.6 GTexel
|
688 GTexel
|
| POM |
16.6 fps
|
32.5 fps
|
19.7 fps
|
35.9 fps
|
30.2 fps
|
| Cloth |
15.5 fps
|
14.1 fps
|
18.5 fps
|
37 fps
|
27.7 fps
|
| Particles |
27 fps
|
28.9 fps
|
33.7 fps
|
67 fps
|
37.9 fps
|
| Perlin Noise |
21.5 fps
|
42.7 fps
|
25.7 fps
|
51.1 fps
|
43.7 fps
|
The HD 4870 sees a 20-30% gain in the various feature tests over the HD 4850 and scales extremely well in CrossFire, basically doubling the results of a single board. In CrossFire mode the two 4870s also outperformed the GTX 280 in each test by a considerable amount, which bodes well for actual game performance.
Crysis can bring any GPU to its knees at its higher settings, but since we’re previewing AMD’s third crack at a DX10 graphics chip we decided to test the shooter under high in-game settings. Anti-aliasing was applied via the application and anisotropic filtering forced via the control panel for all tested boards. The included GPU_benchmark was used for testing, which is essentially a fly-by of the game’s first map.
A single HD 4870 scored higher than two 4850s at 1280×1024 and trailed only slightly behind as the resolution increased. The frame rate for the 4870, however, dropped rather quickly beyond 1920×1200, with the 512MB of onboard memory being the likely culprit as the amount of available memory is probably not supplying a large enough frame buffer with anti-aliasing enabled. Two HD 4870s in CrossFire scale fairly well at the lower resolutions, but again see the performance drop sharply at the higher two resolutions. Up to 1920×1200, the two 4870s outperform the GTX 280, especially at 1920×1200, but beyond that resolution the 1GB of the NVIDIA board makes a huge difference in Crysis’ performance.
Related Posts:
Related posts:
ATI Radeon HD 4850 Performance Preview Page 4
ATI Radeon HD 4870 Performance Preview
ATI Radeon HD 4870 Performance Preview Page 4
ATI Radeon HD 4870 Performance Preview Page 5
ATI Radeon HD 4870 X2 Performance Preview
ATI Radeon HD 4870 X2 Performance Preview Page 2
ATI Radeon HD 4870 X2 Performance Preview Page 3
ATI Radeon HD 4870 X2 Performance Preview Page 5
