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GeForce GTX Titan X vs Radeon R9 390 8G

Intro

The GeForce GTX Titan X has a GPU core clock speed of 1000 MHz, and the 12288 MB of GDDR5 memory is set to run at 1750 MHz through a 384-bit bus. It also is made up of 3072 SPUs, 192 Texture Address Units, and 96 ROPs.

Compare all of that to the Radeon R9 390 8G, which features core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2560 SPUs as well as 160 TAUs and 64 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

GeForce GTX Titan X 17879 points
Radeon R9 390 8G 12733 points
Difference: 5146 (40%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the Radeon R9 390 8G should in theory be just a bit better than the GeForce GTX Titan X overall. (explain)

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

Texel Rate

The GeForce GTX Titan X should be just a bit (more or less 20%) more effective at anisotropic filtering than the Radeon R9 390 8G. (explain)

GeForce GTX Titan X 192000 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 32000 (20%)

Pixel Rate

The GeForce GTX Titan X is much (approximately 50%) more effective at AA than the Radeon R9 390 8G, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX Titan X 96000 Mpixels/sec
Radeon R9 390 8G 64000 Mpixels/sec
Difference: 32000 (50%)

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 390 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 390 8G
Manufacturer nVidia AMD
Year March 2015 June 2015
Code Name GM200 Grenada PRO
Memory 12288 MB 8192 MB
Core Speed 1000 MHz 1000 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 160000 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 3072 2560
Texture Mapping Units 192 160
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 largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX Titan X

Amazon.com

Check prices at:

Radeon R9 390 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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