GeForce GTX 560 Ti 448 vs Radeon HD 5850

Intro

Compare those specifications to the Radeon HD 5850, which uses a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this specific model. It features 1440(288x5) SPUs as well as 72 TAUs and 32 ROPs.

Display Graphs

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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 a little bit superior to the Radeon HD 5850 in general. (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 quite a bit (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

The GeForce GTX 560 Ti 448 will be much (about 26%) better at AA than the Radeon HD 5850, and also should be capable of handling higher resolutions while still performing well. (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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.