GeForce GT 315 vs GeForce GT 440 3GB

Intro

Compare that to the GeForce GT 440 3GB, which features core speeds of 594 MHz on the GPU, and 900 MHz on the 3072 MB of GDDR3 RAM. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 4 Watts (8%)

Memory Bandwidth

As far as performance goes, the GeForce GT 440 3GB should in theory be a lot better than the GeForce GT 315 overall. (explain)

GeForce GT 440 3GB		43200 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 17920 (71%)

Texel Rate

The GeForce GT 440 3GB is quite a bit (approximately 43%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 4256 (43%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 440 3GB is the winner, by far. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 9256 (185%)

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 (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.