GeForce GT 450 (OEM) vs Radeon R9 M290X

Intro

Compare that to the Radeon R9 M290X, which comes with core clock speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 6 Watts (6%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M290X should be much faster than the GeForce GT 450 (OEM) in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 57600 (60%)

Texel Rate

The Radeon R9 M290X will be a lot (more or less 259%) more effective at AF than the GeForce GT 450 (OEM). (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 49040 (259%)

Pixel Rate

The Radeon R9 M290X is much (about 43%) faster with regards to AA than the GeForce GT 450 (OEM), and also capable of handling higher screen resolutions better. (explain)

Radeon R9 M290X		27200 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 8240 (43%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video 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 Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.