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GeForce 825M vs Radeon R5 M230

Intro

The GeForce 825M uses a 28 nm design. nVidia has clocked the core frequency at 850 MHz. The DDR3 RAM is set to run at a frequency of 900 MHz on this particular card. It features 384 SPUs as well as 16 TAUs and 8 ROPs.

Compare those specifications to the Radeon R5 M230, which makes use of a 28 nm design. AMD has clocked the core frequency at 780 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this specific model. It features 320 SPUs along with 20 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R5 M230 should be a small bit faster than the GeForce 825M overall. (explain)

Radeon R5 M230 16000 MB/sec
GeForce 825M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The Radeon R5 M230 should be a little bit (more or less 15%) faster with regards to texture filtering than the GeForce 825M. (explain)

Radeon R5 M230 15600 Mtexels/sec
GeForce 825M 13600 Mtexels/sec
Difference: 2000 (15%)

Pixel Rate

The GeForce 825M will be a lot (more or less 118%) faster with regards to anti-aliasing than the Radeon R5 M230, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce 825M 6800 Mpixels/sec
Radeon R5 M230 3120 Mpixels/sec
Difference: 3680 (118%)

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 R5 M230

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 R5 M230
Manufacturer nVidia AMD
Year January 27 2014 2014
Code Name GK208 Jet Pro
Memory 2048 MB 2048 MB
Core Speed 850 MHz 780 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 33 watts (Unknown) watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 13600 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 3120 Mpixels/sec
Unified Shaders 384 320
Texture Mapping Units 16 20
Render Output Units 8 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x8 PCIe 3.0 x8
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 can be processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the 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 most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 825M

Amazon.com

Check prices at:

Radeon R5 M230

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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