GeForce GTX 970 vs Radeon HD 6770

Intro

Compare all that to the Radeon HD 6770, which features GPU clock speed of 900 MHz, and 512 MB of GDDR5 RAM running at 1050 MHz through a 128-bit bus. It also is made up of 800 Stream Processors, 40 TAUs, and 16 Raster Operation 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 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

The GeForce GTX 970 should theoretically be a lot faster 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 is much (about 203%) faster with regards to anisotropic 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 a high resolution is important to you, then the GeForce GTX 970 is a better choice, and very much so. (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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better 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 amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.