GeForce GTX 550 Ti vs Radeon HD 6790

Intro

Compare all of that to the Radeon HD 6790, which has GPU clock speed of 840 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 256-bit bus. It also is made up of 800 Stream Processors, 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

Radeon HD 6790		2150 points
GeForce GTX 550 Ti		1897 points
	Difference: 253 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti		116 Watts
Radeon HD 6790		150 Watts
	Difference: 34 Watts (29%)

Memory Bandwidth

The Radeon HD 6790 should in theory perform quite a bit faster than the GeForce GTX 550 Ti in general. (explain)

Radeon HD 6790		134400 MB/sec
GeForce GTX 550 Ti		98496 MB/sec
	Difference: 35904 (36%)

Texel Rate

The Radeon HD 6790 should be a small bit (approximately 17%) better at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

Radeon HD 6790		33600 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 4800 (17%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 550 Ti is the winner, by far. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 8160 (61%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.