GeForce GTX 460 vs Radeon R9 390 8G

Intro

Compare all of that to the Radeon R9 390 8G, which comes with a clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses 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

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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 460		2557 points
	Difference: 10176 (398%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460		150 Watts
Radeon R9 390 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

In theory, the Radeon R9 390 8G should perform a lot faster than the GeForce GTX 460 overall. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 297600 (344%)

Texel Rate

The Radeon R9 390 8G should be much (about 323%) more effective at AF than the GeForce GTX 460. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 122200 (323%)

Pixel Rate

The Radeon R9 390 8G is much (about 295%) better at FSAA than the GeForce GTX 460, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 47800 (295%)

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 (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.