GeForce GTS 450 1GB vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which uses a 28 nm design. AMD has clocked the core speed at 1015 MHz. The DDR3 memory is set to run at a frequency of 1100 MHz on this specific card. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTS 450 1GB should theoretically perform quite a bit faster than the Radeon R9 M375 in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 22528 (64%)

Texel Rate

The Radeon R9 M375 is much (more or less 62%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

Radeon R9 M375		40600 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 15544 (62%)

Pixel Rate

The Radeon R9 M375 should be quite a bit (about 30%) faster with regards to FSAA than the GeForce GTS 450 1GB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 3712 (30%)

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 information (counted in MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.