GeForce GTX 480 vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which comes with core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 480 should theoretically be a lot better than the Radeon R9 M380 overall. (explain)

GeForce GTX 480		177408 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 81408 (85%)

Texel Rate

The GeForce GTX 480 will be a bit (approximately 5%) faster with regards to anisotropic filtering than the Radeon R9 M380. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 2000 (5%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 480 is superior to the Radeon R9 M380, and very much so. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 17600 (110%)

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 data (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.