GeForce GTX 580 vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which has a core clock frequency of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 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 380 4G		8837 points
GeForce GTX 580		4956 points
	Difference: 3881 (78%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
GeForce GTX 580		244 Watts
	Difference: 54 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should perform a small bit faster than the Radeon R9 380 4G in general. (explain)

GeForce GTX 580		192384 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 9984 (5%)

Texel Rate

The Radeon R9 380 4G is quite a bit (approximately 120%) better at anisotropic filtering than the GeForce GTX 580. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 59232 (120%)

Pixel Rate

The GeForce GTX 580 should be a small bit (about 19%) better at full screen anti-aliasing than the Radeon R9 380 4G, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon R9 380 4G		31040 Mpixels/sec
	Difference: 6016 (19%)

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 (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result 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 can be processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.