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GeForce GT 220 GDDR3 vs GeForce GTS 450 1GB


Intro

The GeForce GT 220 GDDR3 features a GPU core clock speed of 625 MHz, and the 512 MB of GDDR3 RAM runs at 1012 MHz through a 128-bit bus. It also features 48 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare those specifications to the GeForce GTS 450 1GB, which features GPU clock speed of 783 MHz, and 1024 MB of GDDR5 RAM running at 902 MHz through a 128-bit bus. It also features 192 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 48 Watts (83%)

Memory Bandwidth

The GeForce GTS 450 1GB, in theory, should be much faster than the GeForce GT 220 GDDR3 overall. (explain)

GeForce GTS 450 1GB 57728 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 25344 (78%)

Texel Rate

The GeForce GTS 450 1GB is quite a bit (more or less 151%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTS 450 1GB 25056 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 15056 (151%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTS 450 1GB is a better choice, by far. (explain)

GeForce GTS 450 1GB 12528 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 7528 (151%)

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

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

GeForce GTS 450 1GB

Amazon.com

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 GTS 450 1GB
Manufacturer nVidia nVidia
Year October 2009 September 2010
Code Name GT216 GF106
Memory 512 MB 1024 MB
Core Speed 625 MHz 783 MHz
Memory Speed 2024 MHz 3608 MHz
Power (Max TDP) 58 watts 106 watts
Bandwidth 32384 MB/sec 57728 MB/sec
Texel Rate 10000 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 48 192
Texture Mapping Units 16 32
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-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: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 220 GDDR3

Amazon.com

GeForce GTS 450 1GB

Amazon.com

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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