GeForce GTX 650 Ti 2GB vs Radeon HD 6750 1GB

Intro

Compare all of that to the Radeon HD 6750 1GB, which comes with 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 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 24 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB should perform quite a bit faster than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce GTX 650 Ti 2GB is quite a bit (more or less 128%) more effective at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 33292 (128%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 650 Ti 2GB is superior to the Radeon HD 6750 1GB, and very much so. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 3248 (28%)

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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.