GeForce GT 450 (OEM) vs Radeon R9 M265X

Intro

Compare those specifications to the Radeon R9 M265X, which has core clock speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should be quite a bit faster than the Radeon R9 M265X in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The Radeon R9 M265X is quite a bit (approximately 21%) better at AF than the GeForce GT 450 (OEM). (explain)

Radeon R9 M265X		23000 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 4040 (21%)

Pixel Rate

The GeForce GT 450 (OEM) is quite a bit (more or less 106%) more effective at full screen anti-aliasing than the Radeon R9 M265X, and able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 9760 (106%)

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 largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.