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GeForce GT 220 GDDR3 vs GeForce GT 340 1GB

Intro

The GeForce GT 220 GDDR3 uses a 40 nm design. nVidia has clocked the core speed at 625 MHz. The GDDR3 memory runs at a speed of 1012 MHz on this specific model. It features 48 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce GT 340 1GB, which has GPU clock speed of 550 MHz, and 1024 MB of GDDR5 memory running at 850 MHz through a 128-bit bus. It also features 96 Stream Processors, 32 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
GeForce GT 340 1GB 69 Watts
Difference: 11 Watts (19%)

Memory Bandwidth

The GeForce GT 340 1GB should in theory perform quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GT 340 1GB 54400 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 22016 (68%)

Texel Rate

The GeForce GT 340 1GB is quite a bit (approximately 76%) faster with regards to texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GT 340 1GB 17600 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 7600 (76%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 220 GDDR3 is a better choice, but not by far. (explain)

GeForce GT 220 GDDR3 5000 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 600 (14%)

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

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GeForce GT 340 1GB

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 220 GDDR3 GeForce GT 340 1GB
Manufacturer nVidia nVidia
Year October 2009 February 2010
Code Name GT216 GT215
Memory 512 MB 1024 MB
Core Speed 625 MHz 550 MHz
Memory Speed 2024 MHz 3400 MHz
Power (Max TDP) 58 watts 69 watts
Bandwidth 32384 MB/sec 54400 MB/sec
Texel Rate 10000 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 48 96
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 486 million 727 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.3

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

GeForce GT 340 1GB

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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