GeForce GTX 580 3GB vs Radeon R9 M365X

Intro

Compare those specifications to the Radeon R9 M365X, which features core speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 580 3GB should perform a lot faster than the Radeon R9 M365X in general. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 120384 (167%)

Texel Rate

The GeForce GTX 580 3GB is much (approximately 34%) better at anisotropic filtering than the Radeon R9 M365X. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 12408 (34%)

Pixel Rate

The GeForce GTX 580 3GB should be a lot (approximately 150%) better at full screen anti-aliasing than the Radeon R9 M365X, and will be capable of handling higher resolutions better. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 22256 (150%)

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 data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video 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 amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 output rate also depends 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 max fill rate.