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GeForce 825M vs GeForce 9500 GT DDR2

Intro

The GeForce 825M features a GPU clock speed of 850 MHz, and the 2048 MB of DDR3 RAM runs at 900 MHz through a 64-bit bus. It also is comprised of 384 SPUs, 16 TAUs, and 8 ROPs.

Compare all that to the GeForce 9500 GT DDR2, which uses a 65 nm design. nVidia has set the core frequency at 550 MHz. The DDR2 RAM runs at a frequency of 500 MHz on this specific model. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 825M 33 Watts
GeForce 9500 GT DDR2 50 Watts
Difference: 17 Watts (52%)

Memory Bandwidth

Theoretically speaking, the GeForce 9500 GT DDR2 should be 11% quicker than the GeForce 825M in general, because of its higher bandwidth. (explain)

GeForce 9500 GT DDR2 16000 MB/sec
GeForce 825M 14400 MB/sec
Difference: 1600 (11%)

Texel Rate

The GeForce 825M is quite a bit (approximately 55%) better at anisotropic filtering than the GeForce 9500 GT DDR2. (explain)

GeForce 825M 13600 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 4800 (55%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 825M is the winner, by a large margin. (explain)

GeForce 825M 6800 Mpixels/sec
GeForce 9500 GT DDR2 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:

GeForce 9500 GT DDR2

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 GeForce 9500 GT DDR2
Manufacturer nVidia nVidia
Year January 27 2014 July 2008
Code Name GK208 G96a
Memory 2048 MB 256 MB
Core Speed 850 MHz 550 MHz
Memory Speed 1800 MHz 1000 MHz
Power (Max TDP) 33 watts 50 watts
Bandwidth 14400 MB/sec 16000 MB/sec
Texel Rate 13600 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 6800 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 384 32
Texture Mapping Units 16 16
Render Output Units 8 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 65 nm
Transistors (Unknown) million 314 million
Bus PCIe 3.0 x8 PCIe x16 2.0, PCI
DirectX Version DirectX 12 DirectX 10
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 825M

Amazon.com

Check prices at:

GeForce 9500 GT DDR2

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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