GeForce 8800 GTS (G92) vs Radeon HD 4730

Intro

Compare those specifications to the Radeon HD 4730, which comes with a GPU core clock speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 640(128x5) 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)

GeForce 8800 GTS (G92)		135 Watts
Radeon HD 4730		140 Watts
	Difference: 5 Watts (4%)

Memory Bandwidth

In theory, the GeForce 8800 GTS (G92) should perform a small bit faster than the Radeon HD 4730 overall. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 4480 (8%)

Texel Rate

The GeForce 8800 GTS (G92) should be a lot (more or less 86%) faster with regards to texture filtering than the Radeon HD 4730. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 19200 (86%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8800 GTS (G92) is the winner, by a large margin. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 4800 (86%)

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 data (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core clock 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 a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.