GeForce 8800 GTX vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has set the core speed at 700 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this specific model. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 8800 GTX		155 Watts
	Difference: 69 Watts (80%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTX should perform a small bit faster than the Radeon HD 5750 512MB overall. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce 8800 GTX will be quite a bit (approximately 46%) faster with regards to anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 11600 (46%)

Pixel Rate

The GeForce 8800 GTX will be a lot (more or less 23%) faster with regards to FSAA than the Radeon HD 5750 512MB, and also will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 2600 (23%)

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 largest amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record 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 speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to reach the maximum fill rate.