GeForce GTX Titan Black vs Radeon R9 390 8G

Intro

Compare all that to the Radeon R9 390 8G, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this card. It features 2560 SPUs as well as 160 TAUs and 64 Rasterization Operator Units.

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

Radeon R9 390 8G		12733 points
GeForce GTX Titan Black		11666 points
	Difference: 1067 (9%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon R9 390 8G is 14% faster than the GeForce GTX Titan Black overall, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX Titan Black will be quite a bit (about 33%) faster with regards to anisotropic filtering than the Radeon R9 390 8G. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 53360 (33%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 390 8G is superior to the GeForce GTX Titan Black, by far. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX Titan Black		42672 Mpixels/sec
	Difference: 21328 (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 information (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.