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GeForce GT 430 1GB vs GeForce GT 440 3GB

Intro

The GeForce GT 430 1GB has a GPU core speed of 700 MHz, and the 1024 MB of GDDR3 memory is set to run at 900 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 16 Texture Address Units, and 4 Raster Operation Units.

Compare all that to the GeForce GT 440 3GB, which features GPU core speed of 594 MHz, and 3072 MB of GDDR3 memory set to run at 900 MHz through a 192-bit bus. It also is comprised of 144 SPUs, 24 Texture Address Units, and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB 56 Watts
GeForce GT 430 1GB 60 Watts
Difference: 4 Watts (7%)

Memory Bandwidth

Theoretically, the GeForce GT 440 3GB should be a lot faster than the GeForce GT 430 1GB in general. (explain)

GeForce GT 440 3GB 43200 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 14400 (50%)

Texel Rate

The GeForce GT 440 3GB should be quite a bit (approximately 27%) better at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GT 440 3GB 14256 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 3056 (27%)

Pixel Rate

The GeForce GT 440 3GB will be much (approximately 409%) faster with regards to FSAA than the GeForce GT 430 1GB, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GT 440 3GB 14256 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 11456 (409%)

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 430 1GB

Amazon.com

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GeForce GT 440 3GB

Amazon.com

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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 430 1GB GeForce GT 440 3GB
Manufacturer nVidia nVidia
Year October 2010 October 2010
Code Name GF108 GF106
Memory 1024 MB 3072 MB
Core Speed 700 MHz 594 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 60 watts 56 watts
Bandwidth 28800 MB/sec 43200 MB/sec
Texel Rate 11200 Mtexels/sec 14256 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 14256 Mpixels/sec
Unified Shaders 96 144
Texture Mapping Units 16 24
Render Output Units 4 24
Bus Type GDDR3 GDDR3
Bus Width 128-bit 192-bit
Fab Process 40 nm 40 nm
Transistors 585 million 1170 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GT 430 1GB

Amazon.com

Check prices at:

GeForce GT 440 3GB

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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