GeForce GTX 560 Ti 448 vs Radeon HD 5870

Intro

Compare those specifications to the Radeon HD 5870, which comes with a clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1600(320x5) SPUs, 80 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5870		188 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 22 Watts (12%)

Memory Bandwidth

In theory, the Radeon HD 5870 should be 7% quicker than the GeForce GTX 560 Ti 448 overall, due to its greater bandwidth. (explain)

Radeon HD 5870		153600 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 9600 (7%)

Texel Rate

The Radeon HD 5870 should be quite a bit (approximately 66%) better at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 5870		68000 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 27008 (66%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, but it probably won't make a huge difference. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 5870		27200 Mpixels/sec
	Difference: 2080 (8%)

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 data (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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