GeForce GTX 980 Ti vs Radeon R9 390 8G

Intro

Compare those specs 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 features a 512-bit bus, and makes use of a 28 nm design. It is made up of 2560 SPUs, 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

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 in theory 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 should be just a bit (approximately 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

The GeForce GTX 980 Ti is much (about 50%) faster with regards to full screen anti-aliasing than the Radeon R9 390 8G, and also will be able to handle higher resolutions better. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.