GeForce GT 310 vs Radeon R9 380 4G

Intro

Compare those specs to the Radeon R9 380 4G, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
Radeon R9 380 4G		190 Watts
	Difference: 159 Watts (513%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should theoretically be much superior to the GeForce GT 310 in general. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 166400 (1040%)

Texel Rate

The Radeon R9 380 4G will be quite a bit (approximately 2206%) better at anisotropic filtering than the GeForce GT 310. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 103928 (2206%)

Pixel Rate

The Radeon R9 380 4G will be quite a bit (approximately 1217%) more effective at anti-aliasing than the GeForce GT 310, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 28684 (1217%)

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 max amount of data (measured in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.