GeForce GT 320 vs Radeon HD 6950

Intro

Compare all that to the Radeon HD 6950, which has core speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon HD 6950		200 Watts
	Difference: 157 Watts (365%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be 533% faster than the GeForce GT 320 in general, because of its greater data rate. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 134720 (533%)

Texel Rate

The Radeon HD 6950 will be a lot (approximately 443%) more effective at anisotropic filtering than the GeForce GT 320. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 57440 (443%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6950 is superior to the GeForce GT 320, and very much so. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 21280 (493%)

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: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.