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GeForce GTX 560 Ti 448 vs Radeon HD 6790

Intro

The GeForce GTX 560 Ti 448 uses a 40 nm design. nVidia has set the core speed at 732 MHz. The GDDR5 RAM runs at a frequency of 900 MHz on this specific card. It features 448 SPUs as well as 56 Texture Address Units and 40 Rasterization Operator Units.

Compare those specifications to the Radeon HD 6790, which comes with core clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 800 SPUs along with 40 TAUs and 16 ROPs.

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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 560 Ti 448 4200 points
Radeon HD 6790 2150 points
Difference: 2050 (95%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790 150 Watts
GeForce GTX 560 Ti 448 210 Watts
Difference: 60 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 should perform just a bit faster than the Radeon HD 6790 in general. (explain)

GeForce GTX 560 Ti 448 144000 MB/sec
Radeon HD 6790 134400 MB/sec
Difference: 9600 (7%)

Texel Rate

The GeForce GTX 560 Ti 448 is a lot (about 22%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

GeForce GTX 560 Ti 448 40992 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 7392 (22%)

Pixel Rate

The GeForce GTX 560 Ti 448 will be a lot (about 118%) faster with regards to AA than the Radeon HD 6790, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 560 Ti 448 29280 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 15840 (118%)

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 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 6790

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 560 Ti 448 Radeon HD 6790
Manufacturer nVidia AMD
Year December 2011 April 2011
Code Name GF110 Barts LE
Memory 1280 MB 1024 MB
Core Speed 732 MHz 840 MHz
Memory Speed 3600 MHz 4200 MHz
Power (Max TDP) 210 watts 150 watts
Bandwidth 144000 MB/sec 134400 MB/sec
Texel Rate 40992 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 448 800
Texture Mapping Units 56 40
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1700 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock 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 one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 560 Ti 448

Amazon.com

Check prices at:

Radeon HD 6790

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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