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GeForce GTX 980 Ti vs Radeon R9 390 8G

Intro

The GeForce GTX 980 Ti comes with core speeds of 1000 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 memory. It features 2816 SPUs along with 176 Texture Address Units and 96 ROPs.

Compare that to the Radeon R9 390 8G, which has a GPU core clock speed of 1000 MHz, and 8192 MB of GDDR5 memory set to run at 1500 MHz through a 512-bit bus. It also features 2560 SPUs, 160 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 980 Ti 17120 points
Radeon R9 390 8G 12733 points
Difference: 4387 (34%)

Zcash Mining Hash Rate

GeForce GTX 980 Ti 425 Sol/s
Radeon R9 390 8G 326 Sol/s
Difference: 99 (30%)

Ethereum Mining Hash Rate

Radeon R9 390 8G 28 Mh/s
GeForce GTX 980 Ti 22 Mh/s
Difference: 6 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 Ti 250 Watts
Radeon R9 390 8G 275 Watts
Difference: 25 Watts (10%)

Memory Bandwidth

Performance-wise, the Radeon R9 390 8G should in theory be a little bit superior to the GeForce GTX 980 Ti in general. (explain)

Radeon R9 390 8G 384000 MB/sec
GeForce GTX 980 Ti 336000 MB/sec
Difference: 48000 (14%)

Texel Rate

The GeForce GTX 980 Ti is a bit (more or less 10%) better at texture filtering than the Radeon R9 390 8G. (explain)

GeForce GTX 980 Ti 176000 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 16000 (10%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980 Ti is the winner, by far. (explain)

GeForce GTX 980 Ti 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 980 Ti

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 980 Ti Radeon R9 390 8G
Manufacturer nVidia AMD
Year June 2015 June 2015
Code Name GM200 Grenada PRO
Memory 6144 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 176000 Mtexels/sec 160000 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 2816 2560
Texture Mapping Units 176 160
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 (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 980 Ti

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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