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GeForce GTX 550 Ti vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GTX 550 Ti features clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 Texture Address Units and 24 Rasterization Operator Units.

Compare all that to the Radeon HD 6450 (OEM) 1GB, which has core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 160 SPUs along with 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GTX 550 Ti 116 Watts
Difference: 85 Watts (274%)

Memory Bandwidth

Performance-wise, the GeForce GTX 550 Ti should in theory be much superior to the Radeon HD 6450 (OEM) 1GB overall. (explain)

GeForce GTX 550 Ti 98496 MB/sec
Radeon HD 6450 (OEM) 1GB 28800 MB/sec
Difference: 69696 (242%)

Texel Rate

The GeForce GTX 550 Ti is much (approximately 380%) more effective at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 550 Ti 28800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 22800 (380%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 550 Ti is superior to the Radeon HD 6450 (OEM) 1GB, by a large margin. (explain)

GeForce GTX 550 Ti 21600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 18600 (620%)

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 GTX 550 Ti

Amazon.com

Radeon HD 6450 (OEM) 1GB

Amazon.com

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 GTX 550 Ti Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year March 2011 February 2011
Code Name GF116 Caicos
Memory 1024 MB 1024 MB
Core Speed 900 MHz 750 MHz
Memory Speed 4104 MHz 3600 MHz
Power (Max TDP) 116 watts 31 watts
Bandwidth 98496 MB/sec 28800 MB/sec
Texel Rate 28800 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 192 160
Texture Mapping Units 32 8
Render Output Units 24 4
Bus Type GDDR5 GDDR5
Bus Width 192-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 370 million
Bus PCIe 2.1 x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be moved over 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 must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, 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 number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

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