GeForce GTX 780 Ti vs Radeon R9 390X 8G

Intro

Compare that to the Radeon R9 390X 8G, which makes use of a 28 nm design. AMD has set the core frequency at 1050 MHz. The GDDR5 RAM works at a speed of 1500 MHz on this card. It features 2816 SPUs as well as 176 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 390X 8G		13555 points
GeForce GTX 780 Ti		10900 points
	Difference: 2655 (24%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
GeForce GTX 780 Ti		19 Mh/s
	Difference: 13 (68%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 780 Ti		250 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 25 Watts (10%)

Memory Bandwidth

Theoretically, the Radeon R9 390X 8G should be a little bit faster than the GeForce GTX 780 Ti overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX 780 Ti		336000 MB/sec
	Difference: 48000 (14%)

Texel Rate

The GeForce GTX 780 Ti should be a small bit (approximately 14%) more effective at AF than the Radeon R9 390X 8G. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 25200 (14%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 390X 8G is superior to the GeForce GTX 780 Ti, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 25200 (60%)

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 (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.