GeForce GTX 570 vs Radeon HD 4670 512MB

Intro

Compare all of that to the Radeon HD 4670 512MB, which has a clock speed of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 55 nm design. It is comprised of 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB		70 Watts
GeForce GTX 570		219 Watts
	Difference: 149 Watts (213%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 570 should in theory be a lot better than the Radeon HD 4670 512MB in general. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 4670 512MB		32000 MB/sec
	Difference: 120000 (375%)

Texel Rate

The GeForce GTX 570 is quite a bit (approximately 83%) better at anisotropic filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 4670 512MB		24000 Mtexels/sec
	Difference: 19920 (83%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is a better choice, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 4670 512MB		6000 Mpixels/sec
	Difference: 23280 (388%)

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 (measured in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.