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GeForce GTX Titan vs Radeon R9 390 8G

Intro

The GeForce GTX Titan has a clock frequency of 837 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It features 2688 SPUs, 224 TAUs, and 48 ROPs.

Compare all that to the Radeon R9 390 8G, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this specific model. It features 2560 SPUs along with 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

Radeon R9 390 8G 12733 points
GeForce GTX Titan 10162 points
Difference: 2571 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX Titan 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 theoretically be much superior to the GeForce GTX Titan overall. (explain)

Radeon R9 390 8G 384000 MB/sec
GeForce GTX Titan 288384 MB/sec
Difference: 95616 (33%)

Texel Rate

The GeForce GTX Titan will be a small bit (more or less 17%) better at anisotropic filtering than the Radeon R9 390 8G. (explain)

GeForce GTX Titan 187488 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 27488 (17%)

Pixel Rate

The Radeon R9 390 8G should be much (about 59%) better at full screen anti-aliasing than the GeForce GTX Titan, and should be capable of handling higher resolutions better. (explain)

Radeon R9 390 8G 64000 Mpixels/sec
GeForce GTX Titan 40176 Mpixels/sec
Difference: 23824 (59%)

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

Amazon.com

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Radeon R9 390 8G

Amazon.com

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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 Radeon R9 390 8G
Manufacturer nVidia AMD
Year February 2013 June 2015
Code Name GK110 Grenada PRO
Memory 6144 MB 8192 MB
Core Speed 837 MHz 1000 MHz
Memory Speed 6008 MHz 6000 MHz
Power (Max TDP) 250 watts 275 watts
Bandwidth 288384 MB/sec 384000 MB/sec
Texel Rate 187488 Mtexels/sec 160000 Mtexels/sec
Pixel Rate 40176 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 2688 2560
Texture Mapping Units 224 160
Render Output Units 48 64
Bus Type GDDR5 GDDR5
Bus Width 384-bit 512-bit
Fab Process 28 nm 28 nm
Transistors 7080 million 6200 million
Bus PCIe 3.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video 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 number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX Titan

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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