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GeForce GTX 650 vs GeForce GTX 860M

Intro

The GeForce GTX 650 uses a 28 nm design. nVidia has set the core speed at 1058 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this card. It features 384 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Compare that to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has set the core speed at 797 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this card. It features 1152 SPUs as well as 96 Texture Address Units and 16 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 860M 4340 points
GeForce GTX 650 2263 points
Difference: 2077 (92%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M 45 Watts
GeForce GTX 650 64 Watts
Difference: 19 Watts (42%)

Memory Bandwidth

In theory, the GeForce GTX 650 is 25% faster than the GeForce GTX 860M in general, due to its higher bandwidth. (explain)

GeForce GTX 650 80000 MB/sec
GeForce GTX 860M 64000 MB/sec
Difference: 16000 (25%)

Texel Rate

The GeForce GTX 860M is a lot (approximately 126%) better at anisotropic filtering than the GeForce GTX 650. (explain)

GeForce GTX 860M 76512 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 42656 (126%)

Pixel Rate

The GeForce GTX 650 is a lot (approximately 33%) more effective at full screen anti-aliasing than the GeForce GTX 860M, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GTX 860M 12752 Mpixels/sec
Difference: 4176 (33%)

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 650

Amazon.com

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GeForce GTX 860M

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 650 GeForce GTX 860M
Manufacturer nVidia nVidia
Year September 2012 March 12 2014
Code Name GK107 GM107
Memory 1024 MB 4096 MB
Core Speed 1058 MHz 797 MHz
Memory Speed 5000 MHz 4000 MHz
Power (Max TDP) 64 watts 45 watts
Bandwidth 80000 MB/sec 64000 MB/sec
Texel Rate 33856 Mtexels/sec 76512 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 12752 Mpixels/sec
Unified Shaders 384 1152
Texture Mapping Units 32 96
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1300 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount 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 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 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. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 650

Amazon.com

Check prices at:

GeForce GTX 860M

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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