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GeForce GT 220 GDDR3 vs GeForce GT 450 (OEM)

Intro

The GeForce GT 220 GDDR3 makes use of a 40 nm design. nVidia has clocked the core speed at 625 MHz. The GDDR3 RAM is set to run at a speed of 1012 MHz on this particular model. It features 48 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the GeForce GT 450 (OEM), which has core speeds of 790 MHz on the GPU, and 1000 MHz on the 1536 MB of GDDR5 RAM. It features 144 SPUs as well as 24 TAUs and 24 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 GT 450 (OEM) 106 Watts
Difference: 48 Watts (83%)

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should perform much faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 63616 (196%)

Texel Rate

The GeForce GT 450 (OEM) should be much (about 90%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GT 450 (OEM) 18960 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 8960 (90%)

Pixel Rate

The GeForce GT 450 (OEM) will be quite a bit (more or less 279%) more effective at anti-aliasing than the GeForce GT 220 GDDR3, and will be able to handle higher screen resolutions better. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 13960 (279%)

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 450 (OEM)

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 450 (OEM)
Manufacturer nVidia nVidia
Year October 2009 October 2010
Code Name GT216 GF106
Memory 512 MB 1536 MB
Core Speed 625 MHz 790 MHz
Memory Speed 2024 MHz 4000 MHz
Power (Max TDP) 58 watts 106 watts
Bandwidth 32384 MB/sec 96000 MB/sec
Texel Rate 10000 Mtexels/sec 18960 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 18960 Mpixels/sec
Unified Shaders 48 144
Texture Mapping Units 16 24
Render Output Units 8 24
Bus Type GDDR3 GDDR5
Bus Width 128-bit 192-bit
Fab Process 40 nm 40 nm
Transistors 486 million 1170 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 reach the maximum fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

GeForce GT 450 (OEM)

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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