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GeForce GTX Titan Black vs Radeon HD 7790

Intro

The GeForce GTX Titan Black comes with core clock speeds of 889 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 RAM. It features 2880 SPUs along with 240 TAUs and 48 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7790, which comes with a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1500 MHz through a 128-bit bus. It also is made up of 896 Stream Processors, 56 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 Titan Black 11666 points
Radeon HD 7790 4330 points
Difference: 7336 (169%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX Titan Black 250 Watts
Difference: 165 Watts (194%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan Black should in theory be much better than the Radeon HD 7790 in general. (explain)

GeForce GTX Titan Black 336000 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 240000 (250%)

Texel Rate

The GeForce GTX Titan Black should be much (more or less 281%) better at texture filtering than the Radeon HD 7790. (explain)

GeForce GTX Titan Black 213360 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 157360 (281%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan Black is superior to the Radeon HD 7790, by a large margin. (explain)

GeForce GTX Titan Black 42672 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 26672 (167%)

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 Black

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 Titan Black Radeon HD 7790
Manufacturer nVidia AMD
Year February 2014 March 2013
Code Name GK110-430 Bonaire XT
Memory 6144 MB 1024 MB
Core Speed 889 MHz 1000 MHz
Memory Speed 7000 MHz 6000 MHz
Power (Max TDP) 250 watts 85 watts
Bandwidth 336000 MB/sec 96000 MB/sec
Texel Rate 213360 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 2880 896
Texture Mapping Units 240 56
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.4 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX Titan Black

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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