GeForce GTX 560 Ti vs Radeon R9 M380

Intro

Compare those specs to the Radeon R9 M380, which features GPU core speed of 1000 MHz, and 4096 MB of GDDR5 memory set to run at 1500 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti should theoretically be a lot superior to the Radeon R9 M380 overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 32256 (34%)

Texel Rate

The GeForce GTX 560 Ti will be quite a bit (approximately 32%) better at anisotropic filtering than the Radeon R9 M380. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 12608 (32%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 Ti is a better choice, by far. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 10304 (64%)

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 largest amount of data (counted in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 can be applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.