GeForce GTX 480 vs Radeon HD 5750 1GB

Intro

Compare all of that to the Radeon HD 5750 1GB, which has GPU core speed of 700 MHz, and 1024 MB of GDDR5 RAM set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 480		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

The GeForce GTX 480 should in theory be much faster than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 103808 (141%)

Texel Rate

The GeForce GTX 480 should be quite a bit (more or less 67%) better at texture filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 16800 (67%)

Pixel Rate

The GeForce GTX 480 will be quite a bit (more or less 200%) faster with regards to anti-aliasing than the Radeon HD 5750 1GB, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 22400 (200%)

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 largest 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 interface width by its memory speed. If it uses DDR type memory, it should 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.