GeForce GTX 460 SE vs Radeon HD 4670 512MB

Intro

Compare that to the Radeon HD 4670 512MB, which comes with clock speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB		70 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 SE should perform a lot faster than the Radeon HD 4670 512MB overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 76800 (240%)

Texel Rate

The GeForce GTX 460 SE is a lot (about 30%) faster with regards to texture filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 7200 (30%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 SE is a better choice, by a large margin. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 4670 512MB		6000 Mpixels/sec
	Difference: 14800 (247%)

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 data (counted in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core 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 number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.