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GeForce GTX 980 Ti vs Radeon R9 390 8G

Intro

The GeForce GTX 980 Ti features a core clock speed of 1000 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It features 2816 SPUs, 176 TAUs, and 96 Raster Operation Units.

Compare those specs to the Radeon R9 390 8G, which comes with a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 512-bit memory bus, and makes use of a 28 nm design. It is made up of 2560 SPUs, 160 TAUs, and 64 Raster Operation 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 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

In theory, the Radeon R9 390 8G is 14% quicker than the GeForce GTX 980 Ti in general, due to its higher bandwidth. (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 should be a small bit (about 10%) faster with regards to AF 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

The GeForce GTX 980 Ti is much (about 50%) faster with regards to AA than the Radeon R9 390 8G, and also will be capable of handling higher resolutions while still performing well. (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: 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 calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 maximum number of pixels that the graphics chip could possibly write to its local memory in one 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 of the card - the lower the memory bandwidth is, the lower the potential 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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