GeForce GT 440 1.5GB vs Radeon R9 M270X

Intro

Compare those specifications to the Radeon R9 M270X, which features a clock frequency of 725 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M270X, in theory, should be a lot faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon R9 M270X		72000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 28800 (67%)

Texel Rate

The Radeon R9 M270X should be a lot (approximately 103%) more effective at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon R9 M270X		29000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 14744 (103%)

Pixel Rate

The GeForce GT 440 1.5GB will be much (about 23%) more effective at FSAA than the Radeon R9 M270X, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 2656 (23%)

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 maximum amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.