GeForce GTX 970 vs Radeon HD 6770

Intro

Compare all that to the Radeon HD 6770, which comes with core clock speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 RAM. It features 800 SPUs as well as 40 Texture Address Units and 16 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 970		10867 points
Radeon HD 6770		1520 points
	Difference: 9347 (615%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 970		145 Watts
	Difference: 37 Watts (34%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 970 should theoretically be quite a bit better than the Radeon HD 6770 overall. (explain)

GeForce GTX 970		224000 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 156800 (233%)

Texel Rate

The GeForce GTX 970 should be much (about 203%) better at texture filtering than the Radeon HD 6770. (explain)

GeForce GTX 970		109200 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 73200 (203%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 970 is superior to the Radeon HD 6770, by far. (explain)

GeForce GTX 970		67200 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 52800 (367%)

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 maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.