Geforce GTX 780 vs Radeon HD 6750

Intro

Compare all of that to the Radeon HD 6750, which makes use of a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this particular card. It features 720 SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
Geforce GTX 780		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 should perform a lot faster than the Radeon HD 6750 overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 224384 (351%)

Texel Rate

The Geforce GTX 780 will be a lot (about 535%) faster with regards to anisotropic filtering than the Radeon HD 6750. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 139596 (535%)

Pixel Rate

The Geforce GTX 780 is quite a bit (approximately 257%) faster with regards to AA than the Radeon HD 6750, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 29824 (257%)

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 maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 can be applied per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also 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 of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.