GeForce 9600 GSO 512MB vs Radeon HD 4750

Intro

Compare that to the Radeon HD 4750, which features a core clock speed of 730 MHz and a GDDR5 memory speed of 800 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is comprised of 640(128x5) SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce 9600 GSO 512MB		90 Watts
	Difference: 15 Watts (20%)

Memory Bandwidth

The GeForce 9600 GSO 512MB should in theory be a small bit faster than the Radeon HD 4750 overall. (explain)

GeForce 9600 GSO 512MB		57600 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 6400 (13%)

Texel Rate

The GeForce 9600 GSO 512MB is a lot (more or less 34%) more effective at texture filtering than the Radeon HD 4750. (explain)

GeForce 9600 GSO 512MB		31200 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 7840 (34%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 4750 is the winner, but not by far. (explain)

Radeon HD 4750		11680 Mpixels/sec
GeForce 9600 GSO 512MB		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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.