GeForce GT 240 GDDR5 vs Radeon HD 5970

Intro

Compare that to the Radeon HD 5970, which features GPU core speed of 725 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is made up of 1600 SPUs, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
Radeon HD 5970		294 Watts
	Difference: 224 Watts (320%)

Memory Bandwidth

Theoretically, the Radeon HD 5970 should perform a lot faster than the GeForce GT 240 GDDR5 in general. (explain)

Radeon HD 5970		256000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 201600 (371%)

Texel Rate

The Radeon HD 5970 should be much (more or less 1218%) better at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 214400 (1218%)

Pixel Rate

The Radeon HD 5970 will be much (about 2009%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 88400 (2009%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.