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Nvidia Titan Xp vs Radeon HD 7990

Intro

The Nvidia Titan Xp features core speeds of 1582 MHz on the GPU, and 1426 MHz on the 12288 MB of GDDR5X memory. It features 3840 SPUs along with 240 Texture Address Units and 96 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7990, which has core speeds of 950 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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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

Nvidia Titan Xp 27938 points
Radeon HD 7990 15520 points
Difference: 12418 (80%)

Zcash Mining Hash Rate

Nvidia Titan Xp 810 Sol/s
Radeon HD 7990 513 Sol/s
Difference: 297 (58%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Nvidia Titan Xp 250 Watts
Radeon HD 7990 375 Watts
Difference: 125 Watts (50%)

Memory Bandwidth

Performance-wise, the Radeon HD 7990 should theoretically be a bit superior to the Nvidia Titan Xp overall. (explain)

Radeon HD 7990 576000 MB/sec
Nvidia Titan Xp 560845 MB/sec
Difference: 15155 (3%)

Texel Rate

The Nvidia Titan Xp will be much (approximately 56%) more effective at AF than the Radeon HD 7990. (explain)

Nvidia Titan Xp 379680 Mtexels/sec
Radeon HD 7990 243200 Mtexels/sec
Difference: 136480 (56%)

Pixel Rate

The Nvidia Titan Xp will be quite a bit (approximately 150%) better at FSAA than the Radeon HD 7990, and also capable of handling higher resolutions more effectively. (explain)

Nvidia Titan Xp 151872 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 91072 (150%)

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

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Nvidia Titan Xp

Amazon.com

Check prices at:

Radeon HD 7990

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 Nvidia Titan Xp Radeon HD 7990
Manufacturer nVidia AMD
Year April 2017 April 2013
Code Name GP102 Malta
Memory 12288 MB 3072 MB (x2)
Core Speed 1582 MHz 950 MHz (x2)
Memory Speed 11408 MHz 6000 MHz (x2)
Power (Max TDP) 250 watts 375 watts
Bandwidth 560845 MB/sec 576000 MB/sec
Texel Rate 379680 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 151872 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 3840 2048 (x2)
Texture Mapping Units 240 128 (x2)
Render Output Units 96 32 (x2)
Bus Type GDDR5X GDDR5
Bus Width 384-bit 384-bit (x2)
Fab Process 16 nm 28 nm
Transistors 12000 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 largest amount of data (counted in MB per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Nvidia Titan Xp

Amazon.com

Check prices at:

Radeon HD 7990

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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