GeForce GTX 580 vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which features clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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 380X		9519 points
GeForce GTX 580		4956 points
	Difference: 4563 (92%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the GeForce GTX 580 will be 5% quicker than the Radeon R9 380X in general, due to its greater data rate. (explain)

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

Texel Rate

The Radeon R9 380X is much (approximately 151%) more effective at anisotropic filtering than the GeForce GTX 580. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 74752 (151%)

Pixel Rate

The GeForce GTX 580 will be a bit (more or less 19%) better at full screen anti-aliasing than the Radeon R9 380X, and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon R9 380X		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: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, 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 maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 get to the maximum fill rate.