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GeForce GT 220 GDDR3 vs Radeon HD 3690/3830

Intro

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

Compare all that to the Radeon HD 3690/3830, which has GPU core speed of 668 MHz, and 256 MB of GDDR3 memory set to run at 828 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 16 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
Radeon HD 3690/3830 75 Watts
Difference: 17 Watts (29%)

Memory Bandwidth

As far as performance goes, the GeForce GT 220 GDDR3 should in theory be much superior to the Radeon HD 3690/3830 overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon HD 3690/3830 26496 MB/sec
Difference: 5888 (22%)

Texel Rate

The Radeon HD 3690/3830 is a small bit (approximately 7%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

Radeon HD 3690/3830 10688 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 688 (7%)

Pixel Rate

The Radeon HD 3690/3830 will be much (more or less 114%) better at AA than the GeForce GT 220 GDDR3, and also will be capable of handling higher screen resolutions better. (explain)

Radeon HD 3690/3830 10688 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 5688 (114%)

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 3690/3830

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 3690/3830
Manufacturer nVidia AMD
Year October 2009 2008
Code Name GT216 RV670 PRO
Memory 512 MB 256 MB
Core Speed 625 MHz 668 MHz
Memory Speed 2024 MHz 1656 MHz
Power (Max TDP) 58 watts 75 watts
Bandwidth 32384 MB/sec 26496 MB/sec
Texel Rate 10000 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 48 320(64x5)
Texture Mapping Units 16 16
Render Output Units 8 16
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 MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially 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 3690/3830

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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