GeForce GTX 460 (OEM) vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which makes use of a 55 nm design. AMD has clocked the core frequency at 700 MHz. The GDDR5 memory works at a frequency of 900 MHz on this specific card. It features 640(128x5) SPUs along with 32 TAUs and 8 ROPs.

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) is 89% quicker than the Radeon HD 4730 overall, due to its higher 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 (more or less 63%) faster with regards to texture filtering than the Radeon HD 4730. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 460 (OEM) is the winner, by far. (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 max amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If 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 texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could 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 - also sometimes called 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 - the lower the bandwidth is, the lower the ability to get to the max fill rate.