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GeForce GT 220 GDDR3 vs Radeon HD 6450 (OEM) 1GB

Intro

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

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which has clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs along with 8 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GT 220 GDDR3 58 Watts
Difference: 27 Watts (87%)

Memory Bandwidth

The GeForce GT 220 GDDR3, in theory, should perform just a bit faster than the Radeon HD 6450 (OEM) 1GB overall. (explain)

GeForce GT 220 GDDR3 32384 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 3584 (12%)

Texel Rate

The GeForce GT 220 GDDR3 is much (approximately 67%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 220 GDDR3 10000 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 4000 (67%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 220 GDDR3 is a better choice, by a large margin. (explain)

GeForce GT 220 GDDR3 5000 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 2000 (67%)

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 6450 (OEM) 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 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year October 2009 February 2011
Code Name GT216 Caicos
Memory 512 MB 1024 MB
Core Speed 625 MHz 750 MHz
Memory Speed 2024 MHz 3600 MHz
Power (Max TDP) 58 watts 31 watts
Bandwidth 32384 MB/sec 28800 MB/sec
Texel Rate 10000 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 48 160
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type GDDR3 GDDR5
Bus Width 128-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 486 million 370 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 220 GDDR3

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 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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