GeForce GTX 550 Ti vs Radeon HD 7770

Intro

Compare all of that to the Radeon HD 7770, which has GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 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

Radeon HD 7770		3180 points
GeForce GTX 550 Ti		1897 points
	Difference: 1283 (68%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 36 Watts (45%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti should be a lot faster than the Radeon HD 7770 overall. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 26496 (37%)

Texel Rate

The Radeon HD 7770 is much (approximately 39%) faster with regards to anisotropic filtering than the GeForce GTX 550 Ti. (explain)

Radeon HD 7770		40000 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 11200 (39%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 550 Ti is a better choice, by a large margin. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 5600 (35%)

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 data (counted in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once 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 AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.