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GeForce GT 220 GDDR3 vs Radeon HD 4670 512MB

Intro

The GeForce GT 220 GDDR3 makes use of a 40 nm design. nVidia has clocked the core frequency at 625 MHz. The GDDR3 RAM works at a frequency of 1012 MHz on this specific model. It features 48 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specs to the Radeon HD 4670 512MB, which has clock speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 memory. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
Radeon HD 4670 512MB 70 Watts
Difference: 12 Watts (21%)

Memory Bandwidth

As far as performance goes, the GeForce GT 220 GDDR3 should in theory be a little bit superior to the Radeon HD 4670 512MB overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 384 (1%)

Texel Rate

The Radeon HD 4670 512MB will be a lot (approximately 140%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

Radeon HD 4670 512MB 24000 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 14000 (140%)

Pixel Rate

The Radeon HD 4670 512MB is a little bit (about 20%) better at anti-aliasing than the GeForce GT 220 GDDR3, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 4670 512MB 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 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 4670 512MB
Manufacturer nVidia AMD
Year October 2009 Sep 10, 2008
Code Name GT216 RV730 XT
Memory 512 MB 512 MB
Core Speed 625 MHz 750 MHz
Memory Speed 2024 MHz 2000 MHz
Power (Max TDP) 58 watts 70 watts
Bandwidth 32384 MB/sec 32000 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 moved past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of 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 4670 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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