GeForce GTX 1080 vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which features a clock frequency of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

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

GeForce GTX 1080		21942 points
Radeon R9 390X 8G		13555 points
	Difference: 8387 (62%)

Zcash Mining Hash Rate

GeForce GTX 1080		553 Sol/s
Radeon R9 390X 8G		330 Sol/s
	Difference: 223 (68%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
GeForce GTX 1080		20 Mh/s
	Difference: 12 (60%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 95 Watts (53%)

Memory Bandwidth

The Radeon R9 390X 8G, in theory, should be a bit faster than the GeForce GTX 1080 in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 56320 (17%)

Texel Rate

The GeForce GTX 1080 will be much (more or less 39%) better at anisotropic filtering than the Radeon R9 390X 8G. (explain)

GeForce GTX 1080		257120 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 72320 (39%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1080 is a better choice, by a large margin. (explain)

GeForce GTX 1080		102848 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 35648 (53%)

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 maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at 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 record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.