GeForce GTX 780 Ti vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which has core clock speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator 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 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 speaking, the Radeon R9 390X 8G should be 14% quicker than the GeForce GTX 780 Ti in general, because of its higher bandwidth. (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 will be a small bit (more or less 14%) better at texture filtering 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

The Radeon R9 390X 8G should be much (approximately 60%) more effective at anti-aliasing than the GeForce GTX 780 Ti, and also will be capable of handling higher screen resolutions without slowing down too much. (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 information (in units of megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 can be processed per second. This is calculated by multiplying the total 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). 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 ability to get to the maximum fill rate.