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GeForce GT 220 GDDR3 vs GeForce GTX 850M

Intro

The GeForce GT 220 GDDR3 comes with a core clock speed of 625 MHz and a GDDR3 memory speed of 1012 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It features 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the GeForce GTX 850M, which comes with a core clock frequency of 876 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, 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 220 GDDR3 58 Watts
Difference: 18 Watts (45%)

Memory Bandwidth

Theoretically, the GeForce GT 220 GDDR3 should perform just a bit faster than the GeForce GTX 850M overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 384 (1%)

Texel Rate

The GeForce GTX 850M is quite a bit (more or less 250%) better at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 25040 (250%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 850M is the winner, by far. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 9016 (180%)

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 220 GDDR3

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 220 GDDR3 GeForce GTX 850M
Manufacturer nVidia nVidia
Year October 2009 March 12 2014
Code Name GT216 GM107
Memory 512 MB 2048 MB
Core Speed 625 MHz 876 MHz
Memory Speed 2024 MHz 2000 MHz
Power (Max TDP) 58 watts 40 watts
Bandwidth 32384 MB/sec 32000 MB/sec
Texel Rate 10000 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 48 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type GDDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 486 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 largest amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 220 GDDR3

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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