GeForce GTX 560 Ti 448 vs Radeon HD 5850

Intro

Compare those specs to the Radeon HD 5850, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this model. It features 1440(288x5) SPUs along with 72 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850		151 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 59 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti 448 should in theory be just a bit better than the Radeon HD 5850 overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5850		128000 MB/sec
	Difference: 16000 (13%)

Texel Rate

The Radeon HD 5850 is a lot (approximately 27%) better at texture filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 5850		52200 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 11208 (27%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 5850		23200 Mpixels/sec
	Difference: 6080 (26%)

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 largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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