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GeForce GT 220 GDDR3 vs GeForce GTS 450 1GB


The GeForce GT 220 GDDR3 uses a 40 nm design. nVidia has set the core frequency at 625 MHz. The GDDR3 memory works at a frequency of 1012 MHz on this particular model. It features 48 SPUs along with 16 TAUs and 8 ROPs.

Compare all that to the GeForce GTS 450 1GB, which comes with clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 memory. It features 192 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 GTS 450 1GB 106 Watts
Difference: 48 Watts (83%)

Memory Bandwidth

As far as performance goes, the GeForce GTS 450 1GB should theoretically be much superior to the GeForce GT 220 GDDR3 in general. (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 should be much (more or less 151%) faster with regards to 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

The GeForce GTS 450 1GB will be quite a bit (about 151%) faster with regards to AA than the GeForce GT 220 GDDR3, and also will be able to handle higher resolutions without slowing down too much. (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

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GeForce GT 220 GDDR3

GeForce GTS 450 1GB

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.


Display 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 maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.


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