GeForce 9600 GT 1GB vs Radeon HD 4770

Intro

Compare those specs to the Radeon HD 4770, which features a clock frequency of 750 MHz and a GDDR5 memory frequency of 800 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4770		80 Watts
GeForce 9600 GT 1GB		95 Watts
	Difference: 15 Watts (19%)

Memory Bandwidth

The GeForce 9600 GT 1GB, in theory, should be a small bit faster than the Radeon HD 4770 overall. (explain)

GeForce 9600 GT 1GB		57600 MB/sec
Radeon HD 4770		51200 MB/sec
	Difference: 6400 (13%)

Texel Rate

The Radeon HD 4770 should be a small bit (approximately 15%) more effective at texture filtering than the GeForce 9600 GT 1GB. (explain)

Radeon HD 4770		24000 Mtexels/sec
GeForce 9600 GT 1GB		20800 Mtexels/sec
	Difference: 3200 (15%)

Pixel Rate

The Radeon HD 4770 should be just a bit (about 15%) faster with regards to full screen anti-aliasing than the GeForce 9600 GT 1GB, and also capable of handling higher resolutions more effectively. (explain)

Radeon HD 4770		12000 Mpixels/sec
GeForce 9600 GT 1GB		10400 Mpixels/sec
	Difference: 1600 (15%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.