GeForce GTX 560 vs Radeon HD 6770

Intro

Compare all that to the Radeon HD 6770, which comes with GPU core speed of 900 MHz, and 512 MB of GDDR5 RAM set to run at 1050 MHz through a 128-bit bus. It also is made up of 800 SPUs, 40 Texture Address Units, 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 560		3030 points
Radeon HD 6770		1520 points
	Difference: 1510 (99%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 560		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

The GeForce GTX 560, in theory, should perform a lot faster than the Radeon HD 6770 overall. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 60928 (91%)

Texel Rate

The GeForce GTX 560 is quite a bit (more or less 26%) faster with regards to anisotropic filtering than the Radeon HD 6770. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 9360 (26%)

Pixel Rate

The GeForce GTX 560 will be quite a bit (approximately 80%) faster with regards to full screen anti-aliasing than the Radeon HD 6770, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 11520 (80%)

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 information (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.