GeForce GT 240 GDDR5 vs Radeon HD 6970

Intro

Compare those specifications to the Radeon HD 6970, which uses a 40 nm design. AMD has set the core speed at 880 MHz. The GDDR5 RAM runs at a speed of 1375 MHz on this specific card. It features 1536 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

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

The Radeon HD 6970 should theoretically be quite a bit faster than 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 a lot (more or less 380%) faster with regards to anisotropic 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 much (about 540%) faster with regards to full screen anti-aliasing than the GeForce GT 240 GDDR5, and able to handle higher resolutions without losing too much performance. (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: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of 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 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 most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.