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GeForce GT 220 GDDR3 vs Radeon R7 250X

Intro

The GeForce GT 220 GDDR3 uses a 40 nm design. nVidia has set the core speed at 625 MHz. The GDDR3 RAM runs at a speed of 1012 MHz on this model. It features 48 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the Radeon R7 250X, which comes with GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3 58 Watts
Radeon R7 250X 95 Watts
Difference: 37 Watts (64%)

Memory Bandwidth

The Radeon R7 250X should theoretically perform a lot faster than the GeForce GT 220 GDDR3 overall. (explain)

Radeon R7 250X 72000 MB/sec
GeForce GT 220 GDDR3 32384 MB/sec
Difference: 39616 (122%)

Texel Rate

The Radeon R7 250X is much (approximately 300%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

Radeon R7 250X 40000 Mtexels/sec
GeForce GT 220 GDDR3 10000 Mtexels/sec
Difference: 30000 (300%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 250X is a better choice, and very much so. (explain)

Radeon R7 250X 16000 Mpixels/sec
GeForce GT 220 GDDR3 5000 Mpixels/sec
Difference: 11000 (220%)

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

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Radeon R7 250X

Amazon.com

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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 R7 250X
Manufacturer nVidia AMD
Year October 2009 February 2014
Code Name GT216 Cape Verde XT
Memory 512 MB 1024 MB
Core Speed 625 MHz 1000 MHz
Memory Speed 2024 MHz 4500 MHz
Power (Max TDP) 58 watts 95 watts
Bandwidth 32384 MB/sec 72000 MB/sec
Texel Rate 10000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 48 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 486 million 1500 million
Bus PCIe 2.0 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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

Display Prices

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GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon R7 250X

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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