GeForce GTX 550 Ti vs Radeon HD 6770

Intro

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

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

In theory, the GeForce GTX 550 Ti will be 47% quicker than the Radeon HD 6770 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon HD 6770 will be a lot (approximately 25%) faster with regards to AF 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 will be quite a bit (approximately 50%) better at FSAA than the Radeon HD 6770, and also should be capable of handling higher resolutions better. (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: Bandwidth is the largest amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.