GeForce 8800 GTX vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which uses a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this particular model. It features 720(144x5) SPUs as well as 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce 8800 GTX		155 Watts
	Difference: 69 Watts (80%)

Memory Bandwidth

The GeForce 8800 GTX, in theory, should be a bit faster than the Radeon HD 5750 1GB in general. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce 8800 GTX will be a lot (about 46%) better at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 11600 (46%)

Pixel Rate

The GeForce 8800 GTX is quite a bit (approximately 23%) more effective at FSAA than the Radeon HD 5750 1GB, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 5750 1GB		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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.