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GeForce 825M vs Radeon R5 M330

Intro

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

Compare those specs to the Radeon R5 M330, which has GPU core speed of 1030 MHz, and 2048 MB of DDR3 memory running at 900 MHz through a 64-bit bus. It also is made up of 320 SPUs, 20 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The Radeon R5 M330 is quite a bit (more or less 51%) faster with regards to AF than the GeForce 825M. (explain)

Radeon R5 M330 20600 Mtexels/sec
GeForce 825M 13600 Mtexels/sec
Difference: 7000 (51%)

Pixel Rate

The Radeon R5 M330 is quite a bit (approximately 21%) more effective at full screen anti-aliasing than the GeForce 825M, and also should be able to handle higher resolutions better. (explain)

Radeon R5 M330 8240 Mpixels/sec
GeForce 825M 6800 Mpixels/sec
Difference: 1440 (21%)

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 M330

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 M330
Manufacturer nVidia AMD
Year January 27 2014 2015
Code Name GK208 Oland
Memory 2048 MB 2048 MB
Core Speed 850 MHz 1030 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 33 watts (Unknown) watts
Bandwidth 14400 MB/sec 14400 MB/sec
Texel Rate 13600 Mtexels/sec 20600 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 8240 Mpixels/sec
Unified Shaders 384 320
Texture Mapping Units 16 20
Render Output Units 8 8
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 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 by the core speed of the chip. The higher this number, the better the graphics card will be at 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 that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 825M

Amazon.com

Check prices at:

Radeon R5 M330

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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