Compare any two graphics cards:
Radeon HD 6850 vs Radeon HD 6950
IntroThe Radeon HD 6850 makes use of a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular model. It features 960 SPUs as well as 48 TAUs and 32 ROPs.
Compare those specifications to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this specific card. It features 1408 SPUs along with 88 Texture Address Units and 32 Rasterization Operator Units.
BenchmarksThese are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Theoretically speaking, the Radeon HD 6950 should be 25% quicker than the Radeon HD 6850 overall, because of its higher data rate. (explain)
Texel RateThe Radeon HD 6950 will be quite a bit (about 89%) better at anisotropic filtering than the Radeon HD 6850. (explain)
Pixel RateIf running with a high screen resolution is important to you, then the Radeon HD 6950 is a better choice, though only just barely. (explain)
Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Radeon HD 6850
Radeon HD 6950
Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 6850
Radeon HD 6950