GeForce GT 450 (OEM) vs Radeon R9 M295X

Intro

Compare those specs to the Radeon R9 M295X, which features a core clock frequency of 750 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Radeon R9 M295X		125 Watts
	Difference: 19 Watts (18%)

Memory Bandwidth

In theory, the Radeon R9 M295X should perform quite a bit faster than the GeForce GT 450 (OEM) in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 80000 (83%)

Texel Rate

The Radeon R9 M295X will be much (approximately 406%) faster with regards to anisotropic filtering than the GeForce GT 450 (OEM). (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 77040 (406%)

Pixel Rate

The Radeon R9 M295X is quite a bit (about 27%) more effective at anti-aliasing than the GeForce GT 450 (OEM), and also will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 5040 (27%)

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 megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 maximum fill rate.