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GeForce GT 220 GDDR3 vs Radeon HD 6970

Intro

The GeForce GT 220 GDDR3 has a GPU clock speed of 625 MHz, and the 512 MB of GDDR3 RAM runs at 1012 MHz through a 128-bit bus. It also is made up of 48 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Compare all that to the Radeon HD 6970, which has GPU clock speed of 880 MHz, and 2048 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
Radeon HD 6970 250 Watts
Difference: 192 Watts (331%)

Memory Bandwidth

The Radeon HD 6970 should theoretically perform quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

Radeon HD 6970 176000 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 143616 (443%)

Texel Rate

The Radeon HD 6970 is a lot (more or less 745%) faster with regards to anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 74480 (745%)

Pixel Rate

The Radeon HD 6970 should be much (approximately 463%) better at FSAA than the GeForce GT 220 GDDR3, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 6970 28160 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 23160 (463%)

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 6970

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 6970
Manufacturer nVidia AMD
Year October 2009 December 2010
Code Name GT216 Cayman XT
Memory 512 MB 2048 MB
Core Speed 625 MHz 880 MHz
Memory Speed 2024 MHz 5500 MHz
Power (Max TDP) 58 watts 250 watts
Bandwidth 32384 MB/sec 176000 MB/sec
Texel Rate 10000 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 48 1536
Texture Mapping Units 16 96
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 486 million 2640 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon HD 6970

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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