GeForce GTX 580 vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which has a core clock speed 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 comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation 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 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

In theory, the GeForce GTX 580 will be 5% quicker than the Radeon R9 380 4G in general, because of its greater data rate. (explain)

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

Texel Rate

The Radeon R9 380 4G will be much (about 120%) better at AF 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 bit (approximately 19%) faster with regards to full screen anti-aliasing than the Radeon R9 380 4G, and should be able to handle higher 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, the result should 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.