GeForce GTS 150 vs Radeon R9 M370X

Intro

Compare all that to the Radeon R9 M370X, which features GPU core speed of 800 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M370X should in theory be much faster than the GeForce GTS 150 overall. (explain)

Radeon R9 M370X		72000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 40000 (125%)

Texel Rate

The GeForce GTS 150 should be quite a bit (about 48%) more effective at anisotropic filtering than the Radeon R9 M370X. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon R9 M370X		32000 Mtexels/sec
	Difference: 15360 (48%)

Pixel Rate

The Radeon R9 M370X will be just a bit (more or less 8%) better at anti-aliasing than the GeForce GTS 150, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M370X		12800 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 960 (8%)

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 largest amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.