GeForce GT 440 3GB vs GeForce GTX 460 (OEM)

Intro

Compare all of that to the GeForce GTX 460 (OEM), which has a clock frequency of 650 MHz and a GDDR5 memory frequency of 850 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 94 Watts (168%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be 152% faster than the GeForce GT 440 3GB overall, due to its higher bandwidth. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 65600 (152%)

Texel Rate

The GeForce GTX 460 (OEM) will be quite a bit (about 155%) faster with regards to AF than the GeForce GT 440 3GB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 22144 (155%)

Pixel Rate

The GeForce GTX 460 (OEM) is quite a bit (about 46%) faster with regards to anti-aliasing than the GeForce GT 440 3GB, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 6544 (46%)

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 largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 are processed per second. This number is calculated by multiplying the total amount of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.