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GeForce GT 230 vs GeForce GTX 850M

Intro

The GeForce GT 230 features a GPU clock speed of 550 MHz, and the 1536 MB of DDR3 memory is set to run at 800 MHz through a 192-bit bus. It also is made up of 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare those specs to the GeForce GTX 850M, which makes use of a 28 nm design. nVidia has set the core speed at 876 MHz. The DDR3 memory is set to run at a frequency of 1000 MHz on this card. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GT 230 65 Watts
Difference: 25 Watts (63%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 230 should be a little bit faster than the GeForce GTX 850M overall. (explain)

GeForce GT 230 38400 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 6400 (20%)

Texel Rate

The GeForce GTX 850M will be much (about 298%) more effective at texture filtering than the GeForce GT 230. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce GT 230 8800 Mtexels/sec
Difference: 26240 (298%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 850M is superior to the GeForce GT 230, and very much so. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce GT 230 4400 Mpixels/sec
Difference: 9616 (219%)

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 230

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 230 GeForce GTX 850M
Manufacturer nVidia nVidia
Year October 2009 March 12 2014
Code Name GT218 GM107
Memory 1536 MB 2048 MB
Core Speed 550 MHz 876 MHz
Memory Speed 1600 MHz 2000 MHz
Power (Max TDP) 65 watts 40 watts
Bandwidth 38400 MB/sec 32000 MB/sec
Texel Rate 8800 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 32 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR3 DDR3
Bus Width 192-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 260 million (Unknown) million
Bus PCIe 2.0 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant 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 maximum fill rate.

Display Prices

Hide Prices

GeForce GT 230

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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