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GeForce GTX Titan X vs Radeon HD 7990
Intro
The GeForce GTX Titan X makes use of a 28 nm design. nVidia has set the core speed at 1000 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this particular card. It features 3072 SPUs as well as 192 Texture Address Units and 96 Rasterization Operator Units.Compare all of that to the Radeon HD 7990, which features clock speeds of 950 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.
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 X |
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17879 points |
| Radeon HD 7990 |
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15520 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX Titan X |
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250 Watts |
| Radeon HD 7990 |
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375 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 7990 will be 71% quicker than the GeForce GTX Titan X in general, because of its higher bandwidth. (explain)
| Radeon HD 7990 |
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576000 MB/sec |
| GeForce GTX Titan X |
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336000 MB/sec |
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Texel Rate
The Radeon HD 7990 is a lot (about 27%) better at texture filtering than the GeForce GTX Titan X. (explain)| Radeon HD 7990 |
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243200 Mtexels/sec |
| GeForce GTX Titan X |
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192000 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the GeForce GTX Titan X is a better choice, and very much so. (explain)| GeForce GTX Titan X |
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96000 Mpixels/sec |
| Radeon HD 7990 |
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60800 Mpixels/sec |
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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.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Price Comparison
GeForce GTX Titan XAmazon.com
Check prices at:
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Radeon HD 7990Amazon.com
Check prices at:
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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
| Model | GeForce GTX Titan X | Radeon HD 7990 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | March 2015 | April 2013 |
| Code Name | GM200 | Malta |
| Memory | 12288 MB | 3072 MB (x2) |
| Core Speed | 1000 MHz | 950 MHz (x2) |
| Memory Speed | 7000 MHz | 6000 MHz (x2) |
| Power (Max TDP) | 250 watts | 375 watts |
| Bandwidth | 336000 MB/sec | 576000 MB/sec |
| Texel Rate | 192000 Mtexels/sec | 243200 Mtexels/sec |
| Pixel Rate | 96000 Mpixels/sec | 60800 Mpixels/sec |
| Unified Shaders | 3072 | 2048 (x2) |
| Texture Mapping Units | 192 | 128 (x2) |
| Render Output Units | 96 | 32 (x2) |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 384-bit | 384-bit (x2) |
| Fab Process | 28 nm | 28 nm |
| Transistors | 8000 million | 4313 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 12.0 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.5 | OpenGL 4.3 |
Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.
GeForce GTX Titan XAmazon.com
Check prices at:
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Radeon HD 7990Amazon.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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