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GeForce GT 220 GDDR3 vs Radeon HD 3470 256MB

Intro

The GeForce GT 220 GDDR3 comes with core clock speeds of 625 MHz on the GPU, and 1012 MHz on the 512 MB of GDDR3 RAM. It features 48 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare that to the Radeon HD 3470 256MB, which uses a 55 nm design. AMD has clocked the core speed at 800 MHz. The DDR2 memory works at a speed of 950 MHz on this model. It features 40(8x5) SPUs as well as 4 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GT 220 GDDR3 should in theory perform a bit faster than the Radeon HD 3470 256MB overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 1984 (7%)

Texel Rate

The GeForce GT 220 GDDR3 will be much (approximately 213%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)

GeForce GT 220 GDDR3 10000 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 6800 (213%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 220 GDDR3 is the winner, and very much so. (explain)

GeForce GT 220 GDDR3 5000 Mpixels/sec
Radeon HD 3470 256MB 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 256MB

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 Radeon HD 3470 256MB
Manufacturer nVidia AMD
Year October 2009 2008
Code Name GT216 RV620 PRO
Memory 512 MB 256 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 DDR2
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: Bandwidth is the largest amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core 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 in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon HD 3470 256MB

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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