GeForce GTX 960 vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which has a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 960		120 Watts
	Difference: 34 Watts (40%)

Memory Bandwidth

In theory, the GeForce GTX 960 should be much faster than the Radeon HD 6750 overall. (explain)

GeForce GTX 960		112000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 48000 (75%)

Texel Rate

The GeForce GTX 960 is quite a bit (about 176%) faster with regards to AF than the Radeon HD 6750. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 46028 (176%)

Pixel Rate

The GeForce GTX 960 will be much (about 211%) better at full screen anti-aliasing than the Radeon HD 6750, and also capable of handling higher resolutions better. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 24464 (211%)

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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.