GeForce GT 130 vs Radeon R9 M390X

Intro

Compare that to the Radeon R9 M390X, which has GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 130		75 Watts
Radeon R9 M390X		125 Watts
	Difference: 50 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon R9 M390X should in theory be a lot better than the GeForce GT 130 in general. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 148000 (1233%)

Texel Rate

The Radeon R9 M390X should be quite a bit (about 671%) better at AF than the GeForce GT 130. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 80544 (671%)

Pixel Rate

The Radeon R9 M390X should be much (about 189%) better at AA than the GeForce GT 130, and able to handle higher screen resolutions better. (explain)

Radeon R9 M390X		23136 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 15136 (189%)

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 (counted in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core 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 in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.