GeForce GTX 980 vs Radeon R9 Nano

Intro

Compare all of that to the Radeon R9 Nano, which has a clock frequency of 1000 MHz and a HBM memory speed of 500 MHz. It also uses a 4096-bit memory bus, and makes use of a 28 nm design. It is comprised of 4096 SPUs, 256 Texture Address Units, 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

Radeon R9 Nano		14918 points
GeForce GTX 980		13552 points
	Difference: 1366 (10%)

Ethereum Mining Hash Rate

Radeon R9 Nano		30 Mh/s
GeForce GTX 980		20 Mh/s
	Difference: 10 (50%)

Zcash Mining Hash Rate

GeForce GTX 980		408 Sol/s
Radeon R9 Nano		402 Sol/s
	Difference: 6 (1%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
Radeon R9 Nano		175 Watts
	Difference: 10 Watts (6%)

Memory Bandwidth

The Radeon R9 Nano should in theory be much faster than the GeForce GTX 980 overall. (explain)

Radeon R9 Nano		512000 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 288000 (129%)

Texel Rate

The Radeon R9 Nano should be much (approximately 78%) more effective at anisotropic filtering than the GeForce GTX 980. (explain)

Radeon R9 Nano		256000 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 111872 (78%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 980 is superior to the Radeon R9 Nano, though not by far. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 8064 (13%)

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 (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.