GeForce GTX 460 (OEM) vs Radeon HD 4730

Intro

Compare all that to the Radeon HD 4730, which features a clock speed of 700 MHz and a GDDR5 memory speed of 900 MHz. It also features a 128-bit bus, and uses a 55 nm design. It features 640(128x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730		140 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) will be 89% quicker than the Radeon HD 4730 overall, because of its greater data rate. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 51200 (89%)

Texel Rate

The GeForce GTX 460 (OEM) will be a lot (about 63%) more effective at AF than the Radeon HD 4730. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 14000 (63%)

Pixel Rate

The GeForce GTX 460 (OEM) will be quite a bit (more or less 271%) better at AA than the Radeon HD 4730, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 15200 (271%)

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 (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.