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GeForce GTX 460 1GB vs GeForce GTX 870M

Intro

The GeForce GTX 460 1GB features a core clock frequency of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare all of that to the GeForce GTX 870M, which features a clock speed of 941 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 192-bit bus, and makes use of a 28 nm design. It is comprised of 1344 SPUs, 112 Texture Address Units, and 24 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M 110 Watts
GeForce GTX 460 1GB 160 Watts
Difference: 50 Watts (45%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 1GB should in theory be a small bit better than the GeForce GTX 870M in general. (explain)

GeForce GTX 460 1GB 115200 MB/sec
GeForce GTX 870M 96000 MB/sec
Difference: 19200 (20%)

Texel Rate

The GeForce GTX 870M should be a lot (more or less 179%) more effective at AF than the GeForce GTX 460 1GB. (explain)

GeForce GTX 870M 105392 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 67592 (179%)

Pixel Rate

The GeForce GTX 870M should be a small bit (about 5%) faster with regards to anti-aliasing than the GeForce GTX 460 1GB, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 870M 22584 Mpixels/sec
GeForce GTX 460 1GB 21600 Mpixels/sec
Difference: 984 (5%)

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 1GB

Amazon.com

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GeForce GTX 870M

Amazon.com

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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 1GB GeForce GTX 870M
Manufacturer nVidia nVidia
Year July 2010 March 12 2014
Code Name GF104 GK104
Memory 1024 MB 3072 MB
Core Speed 675 MHz 941 MHz
Memory Speed 3600 MHz 4000 MHz
Power (Max TDP) 160 watts 110 watts
Bandwidth 115200 MB/sec 96000 MB/sec
Texel Rate 37800 Mtexels/sec 105392 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 22584 Mpixels/sec
Unified Shaders 336 1344
Texture Mapping Units 56 112
Render Output Units 32 24
Bus Type GDDR5 GDDR5
Bus Width 256-bit 192-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 max amount of data (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 460 1GB

Amazon.com

Check prices at:

GeForce GTX 870M

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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