GeForce GTX 560 vs Radeon HD 5830

Intro

Compare that to the Radeon HD 5830, which has a core clock speed of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is made up of 1120(224x5) SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
Radeon HD 5830		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 should in theory be a bit better than the Radeon HD 5830 in general. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 128 (0%)

Texel Rate

The GeForce GTX 560 will be a little bit (about 1%) better at texture filtering than the Radeon HD 5830. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 560 (1%)

Pixel Rate

The GeForce GTX 560 will be quite a bit (approximately 103%) more effective at full screen anti-aliasing than the Radeon HD 5830, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 13120 (103%)

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 (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs 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 lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.