GeForce GTX 260 vs Radeon R9 M380

Intro

Compare all of that to the Radeon R9 M380, which features core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 260 should theoretically be a small bit faster than the Radeon R9 M380 overall. (explain)

GeForce GTX 260		111888 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 15888 (17%)

Texel Rate

The Radeon R9 M380 should be just a bit (about 9%) more effective at AF than the GeForce GTX 260. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 3136 (9%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 260 is superior to the Radeon R9 M380, not by a very large margin though. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 128 (1%)

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 (measured in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.