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GeForce GTX 980 Ti vs Radeon R9 390 8G

Intro

The GeForce GTX 980 Ti makes use of a 28 nm design. nVidia has set the core speed at 1000 MHz. The GDDR5 RAM works at a speed of 1750 MHz on this particular card. It features 2816 SPUs as well as 176 TAUs and 96 ROPs.

Compare all of that to the Radeon R9 390 8G, which features 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 is made up of 2560 Stream Processors, 160 Texture Address Units, 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 just a bit better than the GeForce GTX 980 Ti overall. (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 bit (approximately 10%) faster with regards to anisotropic 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 high levels of AA is important to you, then the GeForce GTX 980 Ti is the winner, by a large margin. (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

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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 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 max amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - 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 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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