Geforce GTX 780 vs Radeon HD 6850

Intro

Compare all of that to the Radeon HD 6850, which makes use of a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this particular card. It features 960 SPUs as well as 48 TAUs and 32 ROPs.

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

The Geforce GTX 780, in theory, should perform a lot faster 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 should be quite a bit (more or less 345%) faster with regards to texture filtering than the Radeon HD 6850. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 780 is superior to the Radeon HD 6850, by a large margin. (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 (counted in MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 fill 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 potential to get to the maximum fill rate.