GeForce GTX 560 Ti 448 vs Radeon HD 5670

Intro

Compare those specifications to the Radeon HD 5670, which features a clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It is made up of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 149 Watts (244%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti 448 is 125% faster than the Radeon HD 5670 overall, due to its greater data rate. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 80000 (125%)

Texel Rate

The GeForce GTX 560 Ti 448 is quite a bit (approximately 164%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 25492 (164%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 Ti 448 is superior to the Radeon HD 5670, by a large margin. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 23080 (372%)

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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core clock 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 number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.