GeForce GT 310 vs Radeon R9 M380

Intro

Compare all of that to the Radeon R9 M380, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M380 should be 500% quicker than the GeForce GT 310 in general, because of its greater data rate. (explain)

Radeon R9 M380		96000 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 80000 (500%)

Texel Rate

The Radeon R9 M380 is quite a bit (about 749%) faster with regards to texture filtering than the GeForce GT 310. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 35288 (749%)

Pixel Rate

The Radeon R9 M380 will be a lot (approximately 579%) faster with regards to anti-aliasing than the GeForce GT 310, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 M380		16000 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 13644 (579%)

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 maximum amount of information (in units of MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 are applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.