GeForce GTX 750 Ti vs Radeon HD 6750 1GB

Intro

Compare all that to the Radeon HD 6750 1GB, which features clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 26 Watts (43%)

Memory Bandwidth

In theory, the GeForce GTX 750 Ti should be 35% faster than the Radeon HD 6750 1GB overall, because of its greater data rate. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce GTX 750 Ti will be a lot (about 56%) faster with regards to texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 14700 (56%)

Pixel Rate

The GeForce GTX 750 Ti should be quite a bit (approximately 41%) more effective at full screen anti-aliasing than the Radeon HD 6750 1GB, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 4720 (41%)

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 (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.