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GeForce GTX 550 Ti vs Radeon HD 7790

Intro

The GeForce GTX 550 Ti comes with a core clock frequency of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also uses a 192-bit memory bus, and makes use of a 40 nm design. It is made up of 192 SPUs, 32 TAUs, and 24 Raster Operation Units.

Compare those specifications to the Radeon HD 7790, which comes with GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1500 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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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 7790 4330 points
GeForce GTX 550 Ti 1897 points
Difference: 2433 (128%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX 550 Ti 116 Watts
Difference: 31 Watts (36%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti is 3% faster than the Radeon HD 7790 overall, due to its higher bandwidth. (explain)

GeForce GTX 550 Ti 98496 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 2496 (3%)

Texel Rate

The Radeon HD 7790 will be much (more or less 94%) more effective at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

Radeon HD 7790 56000 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 27200 (94%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 550 Ti is the winner, and very much so. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
Radeon HD 7790 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

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GeForce GTX 550 Ti

Amazon.com

Check prices at:

Radeon HD 7790

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 550 Ti Radeon HD 7790
Manufacturer nVidia AMD
Year March 2011 March 2013
Code Name GF116 Bonaire XT
Memory 1024 MB 1024 MB
Core Speed 900 MHz 1000 MHz
Memory Speed 4104 MHz 6000 MHz
Power (Max TDP) 116 watts 85 watts
Bandwidth 98496 MB/sec 96000 MB/sec
Texel Rate 28800 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 192 896
Texture Mapping Units 32 56
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 2080 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 550 Ti

Amazon.com

Check prices at:

Radeon HD 7790

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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