GeForce GT 240 GDDR5 vs Radeon HD 6970

Intro

Compare all of that to the Radeon HD 6970, which comes with GPU clock speed of 880 MHz, and 2048 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 96 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
Radeon HD 6970		250 Watts
	Difference: 180 Watts (257%)

Memory Bandwidth

Performance-wise, the Radeon HD 6970 should in theory be quite a bit superior to the GeForce GT 240 GDDR5 overall. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 121600 (224%)

Texel Rate

The Radeon HD 6970 will be quite a bit (more or less 380%) better at texture filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 66880 (380%)

Pixel Rate

The Radeon HD 6970 will be a lot (about 540%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 23760 (540%)

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 maximum amount of information (in units of 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 interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.