Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 825M vs GeForce GTX 850M

Intro

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

Compare all of that to the GeForce GTX 850M, which comes with a core clock speed of 876 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 825M 33 Watts
GeForce GTX 850M 40 Watts
Difference: 7 Watts (21%)

Memory Bandwidth

Performance-wise, the GeForce GTX 850M should theoretically be quite a bit superior to the GeForce 825M overall. (explain)

GeForce GTX 850M 32000 MB/sec
GeForce 825M 14400 MB/sec
Difference: 17600 (122%)

Texel Rate

The GeForce GTX 850M is a lot (more or less 158%) more effective at texture filtering than the GeForce 825M. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce 825M 13600 Mtexels/sec
Difference: 21440 (158%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 850M is superior to the GeForce 825M, by far. (explain)

GeForce GTX 850M 14016 Mpixels/sec
GeForce 825M 6800 Mpixels/sec
Difference: 7216 (106%)

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

Display Prices

Hide Prices

GeForce 825M

Amazon.com

Check prices at:

GeForce GTX 850M

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

Display Specifications

Hide Specifications

Model GeForce 825M GeForce GTX 850M
Manufacturer nVidia nVidia
Year January 27 2014 March 12 2014
Code Name GK208 GM107
Memory 2048 MB 2048 MB
Core Speed 850 MHz 876 MHz
Memory Speed 1800 MHz 2000 MHz
Power (Max TDP) 33 watts 40 watts
Bandwidth 14400 MB/sec 32000 MB/sec
Texel Rate 13600 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR3 DDR3
Bus Width 64-bit 128-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 4.5

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 825M

Amazon.com

Check prices at:

GeForce GTX 850M

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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti-Spam by WP-SpamShield