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GeForce 825M vs Radeon HD 5550

Intro

The GeForce 825M comes with core clock speeds of 850 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare all of that to the Radeon HD 5550, which features a clock frequency of 550 MHz and a DDR2 memory frequency of 400 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 320(64x5) SPUs, 16 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 825M should be just a bit faster than the Radeon HD 5550 overall. (explain)

GeForce 825M 14400 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 825M should be a lot (approximately 55%) better at AF than the Radeon HD 5550. (explain)

GeForce 825M 13600 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 4800 (55%)

Pixel Rate

The GeForce 825M should be a lot (more or less 55%) more effective at anti-aliasing than the Radeon HD 5550, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 825M 6800 Mpixels/sec
Radeon HD 5550 4400 Mpixels/sec
Difference: 2400 (55%)

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 825M

Amazon.com

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Radeon HD 5550

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 825M Radeon HD 5550
Manufacturer nVidia AMD
Year January 27 2014 February 9, 2010
Code Name GK208 Redwood LE
Memory 2048 MB 512 MB
Core Speed 850 MHz 550 MHz
Memory Speed 1800 MHz 800 MHz
Power (Max TDP) 33 watts (Unknown) watts
Bandwidth 14400 MB/sec 12800 MB/sec
Texel Rate 13600 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 384 320(64x5)
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 627 million
Bus PCIe 3.0 x8 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels that the graphics chip can possibly record to its 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 sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 825M

Amazon.com

Check prices at:

Radeon HD 5550

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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