GeForce GTX 550 Ti vs Radeon HD 6770

Intro

Compare those specifications to the Radeon HD 6770, which comes with 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 ROPs.

Display Graphs

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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 550 Ti		1897 points
Radeon HD 6770		1520 points
	Difference: 377 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 8 Watts (7%)

Memory Bandwidth

The GeForce GTX 550 Ti should in theory perform much faster than the Radeon HD 6770 in general. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 31296 (47%)

Texel Rate

The Radeon HD 6770 is a lot (approximately 25%) more effective at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

Radeon HD 6770		36000 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 7200 (25%)

Pixel Rate

The GeForce GTX 550 Ti is a lot (about 50%) faster with regards to AA than the Radeon HD 6770, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 7200 (50%)

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 (in units of MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total 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 per second.

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