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GeForce 825M vs Radeon HD 5550

Intro

The GeForce 825M features a clock speed of 850 MHz and a DDR3 memory frequency of 900 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all of that to the Radeon HD 5550, which features a GPU core clock speed of 550 MHz, and 512 MB of DDR2 RAM set to run at 400 MHz through a 128-bit bus. It also features 320(64x5) SPUs, 16 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 825M is 13% quicker than the Radeon HD 5550 overall, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce 825M should be a lot (more or less 55%) more effective at anisotropic filtering than the Radeon HD 5550. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 825M is the winner, by far. (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

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.

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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the potential to get to the max 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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