GeForce GTX 580 vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which makes use of a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory is set to run at a speed of 1425 MHz on this particular model. It features 1792 SPUs along with 112 Texture Address Units 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 2G		8850 points
GeForce GTX 580		4956 points
	Difference: 3894 (79%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
GeForce GTX 580		244 Watts
	Difference: 54 Watts (28%)

Memory Bandwidth

Theoretically, the GeForce GTX 580 should perform a little bit faster than the Radeon R9 380 2G overall. (explain)

GeForce GTX 580		192384 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 9984 (5%)

Texel Rate

The Radeon R9 380 2G will be much (approximately 120%) better at AF than the GeForce GTX 580. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 59232 (120%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 580 is superior to the Radeon R9 380 2G, though not by far. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon R9 380 2G		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 maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core 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 also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.