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GeForce GT 430 1GB vs GeForce GTX 850M

Intro

The GeForce GT 430 1GB has a GPU core clock 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 those specs to the GeForce GTX 850M, which features a core clock frequency of 876 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GT 430 1GB 60 Watts
Difference: 20 Watts (50%)

Memory Bandwidth

Performance-wise, the GeForce GTX 850M should theoretically be a bit better than the GeForce GT 430 1GB in general. (explain)

GeForce GTX 850M 32000 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 3200 (11%)

Texel Rate

The GeForce GTX 850M will be quite a bit (more or less 213%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 23840 (213%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 850M is a better choice, by a large margin. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 11216 (401%)

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

Check prices at:

GeForce GTX 850M

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 430 1GB GeForce GTX 850M
Manufacturer nVidia nVidia
Year October 2010 March 12 2014
Code Name GF108 GM107
Memory 1024 MB 2048 MB
Core Speed 700 MHz 876 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 60 watts 40 watts
Bandwidth 28800 MB/sec 32000 MB/sec
Texel Rate 11200 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 96 640
Texture Mapping Units 16 40
Render Output Units 4 16
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 585 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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

Display Prices

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GeForce GT 430 1GB

Amazon.com

Check prices at:

GeForce GTX 850M

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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