GeForce GT 450 (OEM) vs Radeon R9 M265X

Intro

Compare that to the Radeon R9 M265X, which has a clock speed of 575 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

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

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

Texel Rate

The Radeon R9 M265X should be much (about 21%) more effective at anisotropic filtering 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

If using high levels of AA is important to you, then the GeForce GT 450 (OEM) is a better choice, and very much so. (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 maximum amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. 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 memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.