GeForce GTX 560 Ti 448 vs Radeon HD 6750

Intro

Compare those specs to the Radeon HD 6750, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this specific card. It features 720 SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 124 Watts (144%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 will be 125% quicker than the Radeon HD 6750 in general, due to its greater data rate. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 80000 (125%)

Texel Rate

The GeForce GTX 560 Ti 448 is a lot (about 57%) faster with regards to anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 14892 (57%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be quite a bit (more or less 152%) more effective at AA than the Radeon HD 6750, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 17680 (152%)

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 maximum amount of information (measured in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.