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GeForce 825M vs Radeon HD 5450

Intro

The GeForce 825M has a clock frequency of 850 MHz and a DDR3 memory frequency of 900 MHz. It also makes use of a 64-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 16 TAUs, and 8 ROPs.

Compare those specifications to the Radeon HD 5450, which features a core clock frequency of 650 MHz and a DDR3 memory speed of 800 MHz. It also makes use of a 64-bit bus, and uses a 40 nm design. It is comprised of 80(16x5) SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450 19 Watts
GeForce 825M 33 Watts
Difference: 14 Watts (74%)

Memory Bandwidth

Theoretically speaking, the GeForce 825M will be 13% faster than the Radeon HD 5450 overall, because of its greater bandwidth. (explain)

GeForce 825M 14400 MB/sec
Radeon HD 5450 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 825M should be quite a bit (approximately 162%) better at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce 825M 13600 Mtexels/sec
Radeon HD 5450 5200 Mtexels/sec
Difference: 8400 (162%)

Pixel Rate

The GeForce 825M should be a lot (approximately 162%) faster with regards to FSAA than the Radeon HD 5450, and capable of handling higher resolutions more effectively. (explain)

GeForce 825M 6800 Mpixels/sec
Radeon HD 5450 2600 Mpixels/sec
Difference: 4200 (162%)

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 5450

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 5450
Manufacturer nVidia AMD
Year January 27 2014 February 4, 2010
Code Name GK208 Cedar PRO
Memory 2048 MB 512 MB
Core Speed 850 MHz 650 MHz
Memory Speed 1800 MHz 1600 MHz
Power (Max TDP) 33 watts 19 watts
Bandwidth 14400 MB/sec 12800 MB/sec
Texel Rate 13600 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 2600 Mpixels/sec
Unified Shaders 384 80(16x5)
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 292 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 data (in units of megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 can be processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 825M

Amazon.com

Check prices at:

Radeon HD 5450

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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