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GeForce GT 220 GDDR3 vs Radeon HD 3470 512MB

Intro

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

Compare all of that to the Radeon HD 3470 512MB, which comes with a core clock speed of 800 MHz and a GDDR3 memory speed of 950 MHz. It also features a 128-bit memory bus, and makes use of a 55 nm design. It is comprised of 40(8x5) SPUs, 4 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 220 GDDR3 should perform a small bit faster than the Radeon HD 3470 512MB in general. (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 (more or less 213%) more effective at AF 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 running with high levels of AA is important to you, then the GeForce GT 220 GDDR3 is the winner, by a large margin. (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

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.

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 largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

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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