GeForce GTX 560 vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which comes with a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It features 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 560		3030 points
	Difference: 9703 (320%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
Radeon R9 390 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

As far as performance goes, the Radeon R9 390 8G should in theory be much better than the GeForce GTX 560 overall. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 560		128128 MB/sec
	Difference: 255872 (200%)

Texel Rate

The Radeon R9 390 8G should be much (about 253%) faster with regards to texture filtering than the GeForce GTX 560. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 114640 (253%)

Pixel Rate

The Radeon R9 390 8G will be quite a bit (more or less 147%) faster with regards to AA than the GeForce GTX 560, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX 560		25920 Mpixels/sec
	Difference: 38080 (147%)

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 (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.