GeForce GTX 550 Ti vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which features clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 720 SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 30 Watts (35%)

Memory Bandwidth

Performance-wise, the GeForce GTX 550 Ti should theoretically be much superior to the Radeon HD 6750 in general. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 34496 (54%)

Texel Rate

The GeForce GTX 550 Ti should be a little bit (about 10%) better at texture filtering than the Radeon HD 6750. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 2700 (10%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 550 Ti is a better choice, by far. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 10000 (86%)

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 (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.