GeForce GT 450 (OEM) vs Radeon R9 M280X

Intro

Compare those specifications to the Radeon R9 M280X, which makes use of a 28 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 memory works at a frequency of 1375 MHz on this specific model. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

The GeForce GT 450 (OEM), in theory, should perform just a bit faster than the Radeon R9 M280X in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 8000 (9%)

Texel Rate

The Radeon R9 M280X should be much (more or less 166%) faster with regards to anisotropic filtering than the GeForce GT 450 (OEM). (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 31440 (166%)

Pixel Rate

The GeForce GT 450 (OEM) is much (more or less 32%) better at FSAA than the Radeon R9 M280X, and also should be capable of handling higher screen resolutions better. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 4560 (32%)

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 (in units of MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at 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 graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. 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, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.