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GeForce 825M vs GeForce 9500 GT DDR2

Intro

The GeForce 825M has a GPU core clock speed of 850 MHz, and the 2048 MB of DDR3 RAM is set to run at 900 MHz through a 64-bit bus. It also is made up of 384 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare all that to the GeForce 9500 GT DDR2, which has core clock speeds of 550 MHz on the GPU, and 500 MHz on the 256 MB of DDR2 RAM. It features 32 SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

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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

Performance-wise, the GeForce 9500 GT DDR2 should theoretically be a bit superior to the GeForce 825M overall. (explain)

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

Texel Rate

The GeForce 825M should be 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

The GeForce 825M should be much (about 55%) more effective at anti-aliasing than the GeForce 9500 GT DDR2, and also should be able to handle higher resolutions without slowing down too much. (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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

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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