GeForce GTX 470 vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which has a core clock frequency of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 800 SPUs, 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 470		2937 points
Radeon HD 6770		1520 points
	Difference: 1417 (93%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 470		215 Watts
	Difference: 107 Watts (99%)

Memory Bandwidth

The GeForce GTX 470 should theoretically perform quite a bit faster than the Radeon HD 6770 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 66720 (99%)

Texel Rate

The Radeon HD 6770 will be a small bit (about 6%) better at anisotropic filtering than the GeForce GTX 470. (explain)

Radeon HD 6770		36000 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 2008 (6%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 470 is a better choice, by a large margin. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 9880 (69%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.