GeForce GTX 580 vs Radeon HD 4670 512MB

Intro

Compare those specifications 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 memory. 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 580		244 Watts
	Difference: 174 Watts (249%)

Memory Bandwidth

The GeForce GTX 580 should in theory be a lot faster than the Radeon HD 4670 512MB in general. (explain)

GeForce GTX 580		192384 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 160384 (501%)

Texel Rate

The GeForce GTX 580 will be a lot (about 106%) faster with regards to anisotropic filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 25408 (106%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 580 is superior to the Radeon HD 4670 512MB, by a large margin. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 4670 512MB		6000 Mpixels/sec
	Difference: 31056 (518%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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