GeForce GTX 980M vs Radeon R9 390 8G

Intro

Compare all of that to the Radeon R9 390 8G, which features core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2560 SPUs as well as 160 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 390 8G		12733 points
GeForce GTX 980M		9476 points
	Difference: 3257 (34%)

Zcash Mining Hash Rate

Radeon R9 390 8G		326 Sol/s
GeForce GTX 980M		155 Sol/s
	Difference: 171 (110%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
Radeon R9 390 8G		275 Watts
	Difference: 175 Watts (175%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 390 8G should be much faster than the GeForce GTX 980M overall. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 256000 (200%)

Texel Rate

The Radeon R9 390 8G is quite a bit (approximately 61%) better at texture filtering than the GeForce GTX 980M. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 60352 (61%)

Pixel Rate

The GeForce GTX 980M is just a bit (about 4%) better at anti-aliasing than the Radeon R9 390 8G, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 2432 (4%)

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 data (in units of megabytes per second) that can be transported past 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 RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many 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.