GeForce 8800 GT 1GB vs Radeon HD 4750

Intro

Compare those specs to the Radeon HD 4750, which uses a 40 nm design. AMD has set the core frequency at 730 MHz. The GDDR5 memory runs at a frequency of 800 MHz on this specific model. It features 640(128x5) SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce 8800 GT 1GB		105 Watts
	Difference: 30 Watts (40%)

Memory Bandwidth

The GeForce 8800 GT 1GB should theoretically perform a little bit faster than the Radeon HD 4750 overall. (explain)

GeForce 8800 GT 1GB		57600 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 6400 (13%)

Texel Rate

The GeForce 8800 GT 1GB will be much (about 44%) better at anisotropic filtering than the Radeon HD 4750. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 10240 (44%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 4750 is superior to the GeForce 8800 GT 1GB, and very much so. (explain)

Radeon HD 4750		11680 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 2080 (22%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out 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 video 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 amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.