GeForce GTX 980 vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which features a GPU core clock speed of 1050 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

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, in theory, should be much faster than the GeForce GTX 980 in general. (explain)

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

Texel Rate

The Radeon R9 390X 8G should be quite a bit (approximately 28%) better at anisotropic filtering than the GeForce GTX 980. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980 is superior to the Radeon R9 390X 8G, though not by far. (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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 are applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.