GeForce 9600 GT 512MB vs Radeon HD 4750

Intro

Compare those specifications to the Radeon HD 4750, which has a core clock frequency of 730 MHz and a GDDR5 memory speed of 800 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 640(128x5) SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce 9600 GT 512MB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

The GeForce 9600 GT 512MB, in theory, should perform a bit faster than the Radeon HD 4750 overall. (explain)

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

Texel Rate

The Radeon HD 4750 should be a little bit (more or less 12%) faster with regards to AF than the GeForce 9600 GT 512MB. (explain)

Radeon HD 4750		23360 Mtexels/sec
GeForce 9600 GT 512MB		20800 Mtexels/sec
	Difference: 2560 (12%)

Pixel Rate

The Radeon HD 4750 will be a bit (about 12%) more effective at full screen anti-aliasing than the GeForce 9600 GT 512MB, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 4750		11680 Mpixels/sec
GeForce 9600 GT 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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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.