GeForce GTX 465 vs Radeon HD 6970

Intro

Compare that to the Radeon HD 6970, which comes with core clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
Radeon HD 6970		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

The Radeon HD 6970 should theoretically perform quite a bit faster than the GeForce GTX 465 overall. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 73408 (72%)

Texel Rate

The Radeon HD 6970 should be much (approximately 216%) better at AF than the GeForce GTX 465. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 57772 (216%)

Pixel Rate

The Radeon HD 6970 is a lot (more or less 45%) better at AA than the GeForce GTX 465, and able to handle higher resolutions better. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 8736 (45%)

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 largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.