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GeForce GTX Titan X vs Radeon R9 390 8G

Intro

The GeForce GTX Titan X uses a 28 nm design. nVidia has set the core speed at 1000 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this card. It features 3072 SPUs as well as 192 Texture Address Units and 96 ROPs.

Compare those specifications to the Radeon R9 390 8G, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory works at a speed of 1500 MHz on this model. It features 2560 SPUs along with 160 Texture Address Units 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

Performance-wise, the Radeon R9 390 8G should theoretically be a little bit better than the GeForce GTX Titan X in general. (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 is a small bit (about 20%) better at texture 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 quite a bit (more or less 50%) better at full screen anti-aliasing than the Radeon R9 390 8G, and should be able to handle higher resolutions better. (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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 figure 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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