Geforce GTX 670 vs Radeon R9 M380

Intro

Compare 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 memory. 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

In theory, the Geforce GTX 670 will be 100% faster than the Radeon R9 M380 overall, because of its higher bandwidth. (explain)

Geforce GTX 670		192000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 96000 (100%)

Texel Rate

The Geforce GTX 670 is a lot (more or less 156%) faster with regards to AF than the Radeon R9 M380. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 62480 (156%)

Pixel Rate

The Geforce GTX 670 is much (about 83%) faster with regards to anti-aliasing than the Radeon R9 M380, and should be able to handle higher resolutions while still performing well. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 13280 (83%)

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 (in units of megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, 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 that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.