GeForce GT 320 vs Radeon HD 6970

Intro

Compare all of that to the Radeon HD 6970, which has a core clock speed of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is comprised of 1536 SPUs, 96 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon HD 6970		250 Watts
	Difference: 207 Watts (481%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6970 will be 596% faster than the GeForce GT 320 overall, because of its higher bandwidth. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 150720 (596%)

Texel Rate

The Radeon HD 6970 should be quite a bit (more or less 552%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 71520 (552%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6970 is superior to the GeForce GT 320, and very much so. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 23840 (552%)

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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.