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GeForce GTX Titan X vs Radeon R9 390X 8G

Intro

The GeForce GTX Titan X features a GPU core speed of 1000 MHz, and the 12288 MB of GDDR5 memory runs at 1750 MHz through a 384-bit bus. It also is comprised of 3072 Stream Processors, 192 TAUs, and 96 Raster Operation Units.

Compare all of that to the Radeon R9 390X 8G, which has clock speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2816 SPUs as well as 176 TAUs and 64 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 X 17879 points
Radeon R9 390X 8G 13555 points
Difference: 4324 (32%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX Titan X 250 Watts
Radeon R9 390X 8G 275 Watts
Difference: 25 Watts (10%)

Memory Bandwidth

Theoretically, the Radeon R9 390X 8G should be a little bit faster than the GeForce GTX Titan X overall. (explain)

Radeon R9 390X 8G 384000 MB/sec
GeForce GTX Titan X 336000 MB/sec
Difference: 48000 (14%)

Texel Rate

The GeForce GTX Titan X is a little bit (about 4%) more effective at texture filtering than the Radeon R9 390X 8G. (explain)

GeForce GTX Titan X 192000 Mtexels/sec
Radeon R9 390X 8G 184800 Mtexels/sec
Difference: 7200 (4%)

Pixel Rate

The GeForce GTX Titan X is much (approximately 43%) faster with regards to full screen anti-aliasing than the Radeon R9 390X 8G, and able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX Titan X 96000 Mpixels/sec
Radeon R9 390X 8G 67200 Mpixels/sec
Difference: 28800 (43%)

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 X

Amazon.com

Check prices at:

Radeon R9 390X 8G

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 X Radeon R9 390X 8G
Manufacturer nVidia AMD
Year March 2015 June 2015
Code Name GM200 Grenada XT
Memory 12288 MB 8192 MB
Core Speed 1000 MHz 1050 MHz
Memory Speed 7000 MHz 6000 MHz
Power (Max TDP) 250 watts 275 watts
Bandwidth 336000 MB/sec 384000 MB/sec
Texel Rate 192000 Mtexels/sec 184800 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 67200 Mpixels/sec
Unified Shaders 3072 2816
Texture Mapping Units 192 176
Render Output Units 96 64
Bus Type GDDR5 GDDR5
Bus Width 384-bit 512-bit
Fab Process 28 nm 28 nm
Transistors 8000 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon R9 390X 8G

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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