GeForce GTS 150 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which has a clock speed of 1015 MHz and a DDR3 memory speed of 1100 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M375 should be a bit faster than the GeForce GTS 150 in general. (explain)

Radeon R9 M375		35200 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 3200 (10%)

Texel Rate

The GeForce GTS 150 should be a bit (approximately 17%) better at texture filtering than the Radeon R9 M375. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 6760 (17%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M375 is a better choice, by far. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 4400 (37%)

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 largest amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.