GeForce 9600 GSO 768MB vs Radeon HD 4670 1GB

Intro

Compare all of that to the Radeon HD 4670 1GB, which has a core clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1100 MHz. It also features a 128-bit bus, and uses a 55 nm design. It features 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce 9600 GSO 768MB		84 Watts
	Difference: 14 Watts (20%)

Memory Bandwidth

Theoretically, the GeForce 9600 GSO 768MB should be a bit faster than the Radeon HD 4670 1GB overall. (explain)

GeForce 9600 GSO 768MB		38400 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 3200 (9%)

Texel Rate

The GeForce 9600 GSO 768MB is a little bit (about 10%) faster with regards to AF than the Radeon HD 4670 1GB. (explain)

GeForce 9600 GSO 768MB		26400 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 2400 (10%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 9600 GSO 768MB is the winner, not by a very large margin though. (explain)

GeForce 9600 GSO 768MB		6600 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 600 (10%)

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 (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 can be processed per second. This number is calculated by multiplying the total texture units by the core 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 processed per second.

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