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GeForce GT 220 GDDR3 vs GeForce GTX 650

Intro

The GeForce GT 220 GDDR3 comes with a GPU clock speed of 625 MHz, and the 512 MB of GDDR3 memory runs at 1012 MHz through a 128-bit bus. It also features 48 SPUs, 16 TAUs, and 8 ROPs.

Compare those specs to the GeForce GTX 650, which has clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
GeForce GTX 650 64 Watts
Difference: 6 Watts (10%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 should be quite a bit faster than the GeForce GT 220 GDDR3 overall. (explain)

GeForce GTX 650 80000 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 47616 (147%)

Texel Rate

The GeForce GTX 650 will be much (more or less 239%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 23856 (239%)

Pixel Rate

The GeForce GTX 650 should be a lot (approximately 239%) better at AA than the GeForce GT 220 GDDR3, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 11928 (239%)

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 GTX 650

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

Display Specifications

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Model GeForce GT 220 GDDR3 GeForce GTX 650
Manufacturer nVidia nVidia
Year October 2009 September 2012
Code Name GT216 GK107
Memory 512 MB 1024 MB
Core Speed 625 MHz 1058 MHz
Memory Speed 2024 MHz 5000 MHz
Power (Max TDP) 58 watts 64 watts
Bandwidth 32384 MB/sec 80000 MB/sec
Texel Rate 10000 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 48 384
Texture Mapping Units 16 32
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 486 million 1300 million
Bus PCIe 2.0 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.0
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

GeForce GTX 650

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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