Geforce GTX 780 vs Radeon HD 6850

Intro

Compare that to the Radeon HD 6850, which has clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 960 SPUs along with 48 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 780		10082 points
Radeon HD 6850		2395 points
	Difference: 7687 (321%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850		127 Watts
Geforce GTX 780		250 Watts
	Difference: 123 Watts (97%)

Memory Bandwidth

Performance-wise, the Geforce GTX 780 should theoretically be much better than the Radeon HD 6850 in general. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 6850		128000 MB/sec
	Difference: 160384 (125%)

Texel Rate

The Geforce GTX 780 will be a lot (more or less 345%) faster with regards to AF than the Radeon HD 6850. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 128496 (345%)

Pixel Rate

The Geforce GTX 780 should be much (about 67%) faster with regards to anti-aliasing than the Radeon HD 6850, and also will be capable of handling higher resolutions without slowing down too much. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 6850		24800 Mpixels/sec
	Difference: 16624 (67%)

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 data (in units of MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.