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GeForce GT 220 GDDR3 vs Radeon HD 3470 512MB

Intro

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

Compare those specs to the Radeon HD 3470 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 800 MHz. The GDDR3 memory works at a speed of 950 MHz on this model. It features 40(8x5) SPUs along with 4 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GT 220 GDDR3 should in theory be a little bit superior to the Radeon HD 3470 512MB overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 1984 (7%)

Texel Rate

The GeForce GT 220 GDDR3 will be quite a bit (about 213%) faster with regards to anisotropic filtering than the Radeon HD 3470 512MB. (explain)

GeForce GT 220 GDDR3 10000 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 6800 (213%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 220 GDDR3 is superior to the Radeon HD 3470 512MB, and very much so. (explain)

GeForce GT 220 GDDR3 5000 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 1800 (56%)

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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Radeon HD 3470 512MB

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.

Specifications

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Model GeForce GT 220 GDDR3 Radeon HD 3470 512MB
Manufacturer nVidia AMD
Year October 2009 2008
Code Name GT216 RV620 PRO
Memory 512 MB 512 MB
Core Speed 625 MHz 800 MHz
Memory Speed 2024 MHz 1900 MHz
Power (Max TDP) 58 watts (Unknown) watts
Bandwidth 32384 MB/sec 30400 MB/sec
Texel Rate 10000 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 48 40(8x5)
Texture Mapping Units 16 4
Render Output Units 8 4
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 486 million (Unknown) million
Bus PCIe 2.0 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory 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:

Radeon HD 3470 512MB

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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