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GeForce GTX Titan vs Radeon HD 7790

Intro

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

Compare all that to the Radeon HD 7790, which features a GPU core clock 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 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 7790 4330 points
Difference: 5832 (135%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GTX Titan should in theory be much faster than the Radeon HD 7790 overall. (explain)

GeForce GTX Titan 288384 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 192384 (200%)

Texel Rate

The GeForce GTX Titan is a lot (more or less 235%) better at texture filtering than the Radeon HD 7790. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 131488 (235%)

Pixel Rate

The GeForce GTX Titan is a lot (approximately 151%) better at anti-aliasing than the Radeon HD 7790, and also will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX Titan 40176 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 24176 (151%)

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

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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 Radeon HD 7790
Manufacturer nVidia AMD
Year February 2013 March 2013
Code Name GK110 Bonaire XT
Memory 6144 MB 1024 MB
Core Speed 837 MHz 1000 MHz
Memory Speed 6008 MHz 6000 MHz
Power (Max TDP) 250 watts 85 watts
Bandwidth 288384 MB/sec 96000 MB/sec
Texel Rate 187488 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 2688 896
Texture Mapping Units 224 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 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the 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 write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX Titan

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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