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GeForce GTX Titan X vs Radeon R9 390X 8G

Intro

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

Compare those specs to the Radeon R9 390X 8G, which features GPU clock speed of 1050 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 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 speaking, the Radeon R9 390X 8G should perform a small bit faster than the GeForce GTX Titan X in general. (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 should be a small bit (approximately 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 (more or less 43%) better at full screen anti-aliasing than the Radeon R9 390X 8G, and also will be capable of handling higher screen resolutions without losing too much performance. (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 data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one 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 a second.

Pixel Rate: Pixel rate is the most pixels the video card can 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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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.

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