GeForce GT 440 1.5GB vs Radeon R9 M265X

Intro

Compare those specs to the Radeon R9 M265X, which features GPU core speed of 575 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X should in theory be much faster than the GeForce GT 440 1.5GB overall. (explain)

Radeon R9 M265X		72000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 28800 (67%)

Texel Rate

The Radeon R9 M265X should be a lot (approximately 61%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon R9 M265X		23000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 8744 (61%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 440 1.5GB is superior to the Radeon R9 M265X, and very much so. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 5056 (55%)

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 data (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most 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 number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.