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GeForce GTX 460 SE vs GeForce GTX 850M

Intro

The GeForce GTX 460 SE uses a 40 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR5 RAM works at a speed of 850 MHz on this specific card. It features 288 SPUs along with 48 TAUs and 32 Rasterization Operator Units.

Compare all that to the GeForce GTX 850M, which has core clock speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M 40 Watts
GeForce GTX 460 SE 150 Watts
Difference: 110 Watts (275%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 SE should perform much faster than the GeForce GTX 850M in general. (explain)

GeForce GTX 460 SE 108800 MB/sec
GeForce GTX 850M 32000 MB/sec
Difference: 76800 (240%)

Texel Rate

The GeForce GTX 850M is just a bit (about 12%) better at AF than the GeForce GTX 460 SE. (explain)

GeForce GTX 850M 35040 Mtexels/sec
GeForce GTX 460 SE 31200 Mtexels/sec
Difference: 3840 (12%)

Pixel Rate

The GeForce GTX 460 SE will be a lot (about 48%) faster with regards to FSAA than the GeForce GTX 850M, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 SE 20800 Mpixels/sec
GeForce GTX 850M 14016 Mpixels/sec
Difference: 6784 (48%)

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 GTX 460 SE

Amazon.com

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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

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Model GeForce GTX 460 SE GeForce GTX 850M
Manufacturer nVidia nVidia
Year November 2010 March 12 2014
Code Name GF104 GM107
Memory 1024 MB 2048 MB
Core Speed 650 MHz 876 MHz
Memory Speed 3400 MHz 2000 MHz
Power (Max TDP) 150 watts 40 watts
Bandwidth 108800 MB/sec 32000 MB/sec
Texel Rate 31200 Mtexels/sec 35040 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 14016 Mpixels/sec
Unified Shaders 288 640
Texture Mapping Units 48 40
Render Output Units 32 16
Bus Type GDDR5 DDR3
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 460 SE

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.

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