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GeForce GTX Titan vs Radeon HD 6790

Intro

The GeForce GTX Titan comes with core speeds of 837 MHz on the GPU, and 1502 MHz on the 6144 MB of GDDR5 memory. It features 2688 SPUs along with 224 TAUs and 48 ROPs.

Compare all that to the Radeon HD 6790, which features core speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs as well as 40 Texture Address Units 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 Titan 10162 points
Radeon HD 6790 2150 points
Difference: 8012 (373%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790 150 Watts
GeForce GTX Titan 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

In theory, the GeForce GTX Titan should perform a lot faster than the Radeon HD 6790 overall. (explain)

GeForce GTX Titan 288384 MB/sec
Radeon HD 6790 134400 MB/sec
Difference: 153984 (115%)

Texel Rate

The GeForce GTX Titan will be a lot (more or less 458%) better at AF than the Radeon HD 6790. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 153888 (458%)

Pixel Rate

The GeForce GTX Titan is a lot (about 199%) better at full screen anti-aliasing than the Radeon HD 6790, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan 40176 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 26736 (199%)

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 Titan

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 Titan Radeon HD 6790
Manufacturer nVidia AMD
Year February 2013 April 2011
Code Name GK110 Barts LE
Memory 6144 MB 1024 MB
Core Speed 837 MHz 840 MHz
Memory Speed 6008 MHz 4200 MHz
Power (Max TDP) 250 watts 150 watts
Bandwidth 288384 MB/sec 134400 MB/sec
Texel Rate 187488 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 2688 800
Texture Mapping Units 224 40
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 7080 million 1700 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX Titan

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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