GeForce 9600 GT 1GB vs Radeon HD 4750

Intro

Compare those specs to the Radeon HD 4750, which makes use of a 40 nm design. AMD has set the core speed at 730 MHz. The GDDR5 RAM works at a frequency of 800 MHz on this model. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce 9600 GT 1GB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

In theory, the GeForce 9600 GT 1GB is 13% quicker than the Radeon HD 4750 overall, because of its greater data rate. (explain)

GeForce 9600 GT 1GB		57600 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 6400 (13%)

Texel Rate

The Radeon HD 4750 will be a small bit (approximately 12%) faster with regards to anisotropic filtering than the GeForce 9600 GT 1GB. (explain)

Radeon HD 4750		23360 Mtexels/sec
GeForce 9600 GT 1GB		20800 Mtexels/sec
	Difference: 2560 (12%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4750 is superior to the GeForce 9600 GT 1GB, but not by far. (explain)

Radeon HD 4750		11680 Mpixels/sec
GeForce 9600 GT 1GB		10400 Mpixels/sec
	Difference: 1280 (12%)

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 maximum amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.