GeForce GTX 970 vs Radeon HD 6750 1GB

Intro

Compare those specs 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 along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 970		145 Watts
	Difference: 59 Watts (69%)

Memory Bandwidth

In theory, the GeForce GTX 970 should perform much faster than the Radeon HD 6750 1GB overall. (explain)

GeForce GTX 970		224000 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 160000 (250%)

Texel Rate

The GeForce GTX 970 will be much (about 318%) better at AF than the Radeon HD 6750 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 83100 (318%)

Pixel Rate

The GeForce GTX 970 is much (more or less 479%) more effective at full screen anti-aliasing than the Radeon HD 6750 1GB, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 55600 (479%)

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 max amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.