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GeForce GT 220 GDDR3 vs Radeon HD 4670 1GB

Intro

The GeForce GT 220 GDDR3 has a clock frequency of 625 MHz and a GDDR3 memory speed of 1012 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is comprised of 48 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the Radeon HD 4670 1GB, which comes with a GPU core clock speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM running at 1100 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 12 Watts (21%)

Memory Bandwidth

In theory, the Radeon HD 4670 1GB should be 9% quicker than the GeForce GT 220 GDDR3 in general, due to its higher bandwidth. (explain)

Radeon HD 4670 1GB 35200 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 2816 (9%)

Texel Rate

The Radeon HD 4670 1GB should be quite a bit (approximately 140%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 14000 (140%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4670 1GB is superior to the GeForce GT 220 GDDR3, though only just barely. (explain)

Radeon HD 4670 1GB 6000 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 1000 (20%)

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 4670 1GB

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 4670 1GB
Manufacturer nVidia AMD
Year October 2009 Sep 10, 2008
Code Name GT216 RV730 XT
Memory 512 MB 1024 MB
Core Speed 625 MHz 750 MHz
Memory Speed 2024 MHz 2200 MHz
Power (Max TDP) 58 watts 70 watts
Bandwidth 32384 MB/sec 35200 MB/sec
Texel Rate 10000 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 48 320(64x5)
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type GDDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 486 million 514 million
Bus PCIe 2.0 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon HD 4670 1GB

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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