GeForce GTX 980 vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which has GPU core speed of 1050 MHz, and 8192 MB of GDDR5 memory set to run at 1500 MHz through a 512-bit bus. It also features 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Display Graphs

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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 390X 8G		13555 points
GeForce GTX 980		13552 points
	Difference: 3 (0%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
GeForce GTX 980		20 Mh/s
	Difference: 12 (60%)

Zcash Mining Hash Rate

GeForce GTX 980		408 Sol/s
Radeon R9 390X 8G		330 Sol/s
	Difference: 78 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 110 Watts (67%)

Memory Bandwidth

The Radeon R9 390X 8G should theoretically be a lot faster than the GeForce GTX 980 overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 160000 (71%)

Texel Rate

The Radeon R9 390X 8G is much (about 28%) faster with regards to AF than the GeForce GTX 980. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 40672 (28%)

Pixel Rate

The GeForce GTX 980 should be just a bit (more or less 7%) faster with regards to anti-aliasing than the Radeon R9 390X 8G, and able to handle higher screen resolutions better. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 4864 (7%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.