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GeForce GT 310 vs GeForce GT 440 1.5GB

Intro

The GeForce GT 310 has core clock speeds of 589 MHz on the GPU, and 1000 MHz on the 512 MB of DDR2 memory. It features 16 SPUs as well as 8 TAUs and 4 ROPs.

Compare all that to the GeForce GT 440 1.5GB, which features a clock frequency of 594 MHz and a GDDR3 memory speed of 900 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It features 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310 31 Watts
GeForce GT 440 1.5GB 56 Watts
Difference: 25 Watts (81%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 440 1.5GB is 170% faster than the GeForce GT 310 overall, because of its greater data rate. (explain)

GeForce GT 440 1.5GB 43200 MB/sec
GeForce GT 310 16000 MB/sec
Difference: 27200 (170%)

Texel Rate

The GeForce GT 440 1.5GB should be quite a bit (about 203%) more effective at AF than the GeForce GT 310. (explain)

GeForce GT 440 1.5GB 14256 Mtexels/sec
GeForce GT 310 4712 Mtexels/sec
Difference: 9544 (203%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 1.5GB is superior to the GeForce GT 310, by a large margin. (explain)

GeForce GT 440 1.5GB 14256 Mpixels/sec
GeForce GT 310 2356 Mpixels/sec
Difference: 11900 (505%)

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

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GeForce GT 310

Amazon.com

Check prices at:

GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GT 310 GeForce GT 440 1.5GB
Manufacturer nVidia nVidia
Year November 2009 October 2010
Code Name GT218 GF106
Memory 512 MB 1536 MB
Core Speed 589 MHz 594 MHz
Memory Speed 2000 MHz 1800 MHz
Power (Max TDP) 31 watts 56 watts
Bandwidth 16000 MB/sec 43200 MB/sec
Texel Rate 4712 Mtexels/sec 14256 Mtexels/sec
Pixel Rate 2356 Mpixels/sec 14256 Mpixels/sec
Unified Shaders 16 144
Texture Mapping Units 8 24
Render Output Units 4 24
Bus Type DDR2 GDDR3
Bus Width 64-bit 192-bit
Fab Process 40 nm 40 nm
Transistors 260 million 1170 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 310

Amazon.com

Check prices at:

GeForce GT 440 1.5GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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