GeForce GTX 460 (OEM) vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which features GPU clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is made up of 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)

GeForce GTX 460 (OEM)		150 Watts
Radeon HD 6950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The Radeon HD 6950 should theoretically perform much faster than the GeForce GTX 460 (OEM) in general. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 51200 (47%)

Texel Rate

The Radeon HD 6950 should be quite a bit (approximately 93%) better at texture filtering than the GeForce GTX 460 (OEM). (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 34000 (93%)

Pixel Rate

The Radeon HD 6950 will be quite a bit (about 23%) faster with regards to anti-aliasing than the GeForce GTX 460 (OEM), and will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 4800 (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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.