GeForce GTX 285 1GB vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which comes with GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950		200 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 4 Watts (2%)

Memory Bandwidth

Performance-wise, the Radeon HD 6950 should theoretically be a little bit better than the GeForce GTX 285 1GB overall. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 1024 (1%)

Texel Rate

The Radeon HD 6950 is quite a bit (more or less 36%) faster with regards to texture filtering than the GeForce GTX 285 1GB. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 18560 (36%)

Pixel Rate

The Radeon HD 6950 should be much (about 23%) faster with regards to full screen anti-aliasing than the GeForce GTX 285 1GB, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 4864 (23%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.