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GeForce GT 220 GDDR3 vs Radeon R5 M255

Intro

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

Compare those specs to the Radeon R5 M255, which features core clock speeds of 940 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs along with 20 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GT 220 GDDR3 should in theory be much faster than the Radeon R5 M255 overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 16384 (102%)

Texel Rate

The Radeon R5 M255 is much (about 88%) better at AF than the GeForce GT 220 GDDR3. (explain)

Radeon R5 M255 18800 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 8800 (88%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R5 M255 is superior to the GeForce GT 220 GDDR3, by a large margin. (explain)

Radeon R5 M255 7520 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 2520 (50%)

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 R5 M255

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 R5 M255
Manufacturer nVidia AMD
Year October 2009 June 2014
Code Name GT216 Jet Pro
Memory 512 MB 2048 MB
Core Speed 625 MHz 940 MHz
Memory Speed 2024 MHz 2000 MHz
Power (Max TDP) 58 watts (Unknown) watts
Bandwidth 32384 MB/sec 16000 MB/sec
Texel Rate 10000 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 48 320
Texture Mapping Units 16 20
Render Output Units 8 8
Bus Type GDDR3 DDR3
Bus Width 128-bit 64-bit
Fab Process 40 nm 28 nm
Transistors 486 million (Unknown) million
Bus PCIe 2.0 PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon R5 M255

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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