GeForce GTX 980 Ti vs Radeon R9 390 8G

Intro

Compare all that to the Radeon R9 390 8G, which features a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit bus, and uses a 28 nm design. It is comprised of 2560 SPUs, 160 TAUs, and 64 ROPs.

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

GeForce GTX 980 Ti		17120 points
Radeon R9 390 8G		12733 points
	Difference: 4387 (34%)

Zcash Mining Hash Rate

GeForce GTX 980 Ti		425 Sol/s
Radeon R9 390 8G		326 Sol/s
	Difference: 99 (30%)

Ethereum Mining Hash Rate

Radeon R9 390 8G		28 Mh/s
GeForce GTX 980 Ti		22 Mh/s
	Difference: 6 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 Ti		250 Watts
Radeon R9 390 8G		275 Watts
	Difference: 25 Watts (10%)

Memory Bandwidth

The Radeon R9 390 8G should theoretically perform a bit faster than the GeForce GTX 980 Ti overall. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 980 Ti		336000 MB/sec
	Difference: 48000 (14%)

Texel Rate

The GeForce GTX 980 Ti is a little bit (more or less 10%) faster with regards to texture filtering than the Radeon R9 390 8G. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 16000 (10%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980 Ti is superior to the Radeon R9 390 8G, by far. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 32000 (50%)

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 max amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes 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 max fill rate.