Geforce GTX 670 vs Radeon HD 6770

Intro

Compare those specifications to the Radeon HD 6770, which has core clock speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 memory. It features 800 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator 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 670		7351 points
Radeon HD 6770		1520 points
	Difference: 5831 (384%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
Geforce GTX 670		170 Watts
	Difference: 62 Watts (57%)

Memory Bandwidth

The Geforce GTX 670, in theory, should be a lot faster than the Radeon HD 6770 overall. (explain)

Geforce GTX 670		192000 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 124800 (186%)

Texel Rate

The Geforce GTX 670 should be much (more or less 185%) better at anisotropic filtering than the Radeon HD 6770. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 66480 (185%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 670 is a better choice, by far. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon HD 6770		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 maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 the video card 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 number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.