GeForce GTX 570 vs Radeon HD 6770 1GB

Intro

Compare that to the Radeon HD 6770 1GB, which features a clock frequency of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is made up of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB		108 Watts
GeForce GTX 570		219 Watts
	Difference: 111 Watts (103%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 is 126% quicker than the Radeon HD 6770 1GB overall, due to its higher bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 84800 (126%)

Texel Rate

The GeForce GTX 570 is quite a bit (approximately 22%) more effective at AF than the Radeon HD 6770 1GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 7920 (22%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 570 is superior to the Radeon HD 6770 1GB, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 14880 (103%)

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 max amount of data (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, 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 most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.