GeForce GTX Titan vs Radeon R9 390X 8G

Intro

Compare those specs to the Radeon R9 390X 8G, which has a GPU core clock speed of 1050 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation 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 Titan		10162 points
	Difference: 3393 (33%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon R9 390X 8G should perform much faster than the GeForce GTX Titan in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GTX Titan		288384 MB/sec
	Difference: 95616 (33%)

Texel Rate

The GeForce GTX Titan will be just a bit (about 1%) more effective at anisotropic filtering than the Radeon R9 390X 8G. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 2688 (1%)

Pixel Rate

The Radeon R9 390X 8G is a lot (more or less 67%) faster with regards to AA than the GeForce GTX Titan, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX Titan		40176 Mpixels/sec
	Difference: 27024 (67%)

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 largest amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.