GeForce 840A vs GeForce GTX 860M
When choosing between GeForce 840A and GeForce GTX 860M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 840A and GeForce GTX 860M.
GeForce 840A
GeForce GTX 860M is a Laptop Graphics Card
Note: GeForce GTX 860M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GTX 860M here:
Main Specs
| GeForce 840A | GeForce GTX 860M | |
| Power consumption (TDP) | 33 Watt | 75 Watt |
| Interface | PCIe 3.0 x8 | MXM-B (3.0) |
| Supplementary power connectors | None | |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | No outputs | No outputs |
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- GeForce GTX 860M has 127% more power consumption, than GeForce 840A.
- GeForce 840A is connected by PCIe 3.0 x8, and GeForce GTX 860M uses MXM-B (3.0) interface.
- GeForce GTX 860M has 2 GB more memory, than GeForce 840A.
- GeForce 840A is used in Desktops, and GeForce GTX 860M - in Laptops.
- GeForce 840A and GeForce GTX 860M are build with Maxwell architecture.
- Core clock speed of GeForce 840A is 232 MHz higher, than GeForce GTX 860M.
- GeForce 840A and GeForce GTX 860M are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 3−4 | 16−18 |
| ultra / 1080p | 2−3 | 10−11 |
| QHD / 1440p | 0−1 | 5−6 |
| 4K / 2160p | − | 4−5 |
| low / 720p | 14−16 | 30−35 |
| medium / 1080p | 5−6 | 21−24 |
| The average gaming FPS of GeForce GTX 860M in Assassin's Creed Odyssey is 233% more, than GeForce 840A. | ||
| high / 1080p | − | 27−30 |
| ultra / 1080p | 7−8 | 21−24 |
| QHD / 1440p | 0−1 | 10−11 |
| 4K / 2160p | − | 6−7 |
| low / 720p | 18−20 | 55−60 |
| medium / 1080p | 8−9 | 30−33 |
| The average gaming FPS of GeForce GTX 860M in Battlefield 5 is 236% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 30−35 | − |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce 840A and GeForce GTX 860M have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 120−130 | 220−230 |
| medium / 768p | 90−95 | 190−200 |
| ultra / 1080p | 40−45 | 100−110 |
| QHD / 1440p | 24−27 | 60−65 |
| 4K / 2160p | 18−20 | 30−35 |
| high / 768p | 65−70 | 150−160 |
| The average gaming FPS of GeForce GTX 860M in Counter-Strike: Global Offensive is 108% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 40−45 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce GTX 860M in Cyberpunk 2077 is 6% more, than GeForce 840A. | ||
| low / 768p | 75−80 | 110−120 |
| medium / 768p | 50−55 | 100−105 |
| ultra / 1080p | 27−30 | 65−70 |
| The average gaming FPS of GeForce GTX 860M in Dota 2 is 82% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 20−22 |
| ultra / 1080p | − | 18−20 |
| QHD / 1440p | − | 16−18 |
| 4K / 2160p | 2−3 | 6−7 |
| low / 720p | 14−16 | 40−45 |
| medium / 1080p | 6−7 | 21−24 |
| The average gaming FPS of GeForce GTX 860M in Far Cry 5 is 228% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 27−30 |
| ultra / 1080p | 7−8 | 21−24 |
| QHD / 1440p | − | 16−18 |
| low / 720p | 50−55 | 100−110 |
| medium / 1080p | 14−16 | 55−60 |
| The average gaming FPS of GeForce GTX 860M in Fortnite is 140% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 27−30 |
| ultra / 1080p | − | 21−24 |
| QHD / 1440p | 0−1 | 10−12 |
| 4K / 2160p | − | 10−11 |
| low / 720p | 20−22 | 55−60 |
| medium / 1080p | 9−10 | 30−35 |
| The average gaming FPS of GeForce GTX 860M in Forza Horizon 4 is 225% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 90−95 |
| medium / 768p | − | 80−85 |
| high / 1080p | 8−9 | 30−35 |
| ultra / 1080p | 5−6 | 14−16 |
| QHD / 1440p | 0−1 | 4−5 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of GeForce GTX 860M in Grand Theft Auto V is 130% more, than GeForce 840A. | ||
| high / 1080p | 3−4 | 10−12 |
| ultra / 1080p | 1−2 | 8−9 |
| 4K / 2160p | 0−1 | 3−4 |
| low / 720p | 8−9 | 30−35 |
| medium / 1080p | 4−5 | 14−16 |
| The average gaming FPS of GeForce GTX 860M in Metro Exodus is 300% more, than GeForce 840A. | ||
| low / 768p | 85−90 | 110−120 |
| high / 1080p | 85−90 | − |
| ultra / 1080p | 80−85 | − |
| medium / 1080p | 85−90 | 100−110 |
| The average gaming FPS of GeForce GTX 860M in Minecraft is 26% more, than GeForce 840A. | ||
| high / 1080p | − | 24−27 |
| ultra / 1080p | 12−14 | 18−20 |
| low / 720p | 27−30 | 60−65 |
| medium / 1080p | 14−16 | 24−27 |
| The average gaming FPS of GeForce GTX 860M in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than GeForce 840A. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | 7−8 | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 30−35 |
| medium / 1080p | − | 18−20 |
| The average gaming FPS of GeForce GTX 860M in Red Dead Redemption 2 is 162% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 60−65 |
| medium / 768p | 12−14 | 35−40 |
| high / 1080p | 6−7 | 21−24 |
| ultra / 1080p | 5−6 | 12−14 |
| 4K / 2160p | − | 8−9 |
| The average gaming FPS of GeForce GTX 860M in The Witcher 3: Wild Hunt is 230% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 100−110 |
| medium / 768p | 35−40 | 60−65 |
| ultra / 1080p | 16−18 | 35−40 |
| high / 768p | 30−35 | 55−60 |
| The average gaming FPS of GeForce GTX 860M in World of Tanks is 66% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | GeForce GTX 860M | |
| Architecture | Maxwell | Maxwell |
| Code name | GM108 | N15P-GX |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 12 March 2014 |
| Pipelines | 384 | 640 |
| Core clock speed | 1029 MHz | 797 MHz |
| Boost Clock | 1124 MHz | 915 MHz |
| Transistor count | 1,870 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 43.40 |
| Floating-point performance | 863.2 gflops | 1,389 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2002 MHz | |
| Memory bandwidth | 16.02 GB/s | 80.0 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.5 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 5.0 | + |
| CUDA cores | 1152 or 640 | |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| SLI options | + | |
| HDMI | + | |
| Bitcoin / BTC (SHA256) | 163 Mh/s | |
| Laptop size | medium sized | |
| Standard memory configuration | GDDR5 | |
| eDP 1.2 signal support | Up to 3840x2160 | |
| LVDS signal support | Up to 1920x1200 | |
| DisplayPort Multimode (DP++) support | Up to 3840x2160 | |
| HDCP content protection | + | |
| 7.1 channel HD audio on HDMI | + | |
| TrueHD and DTS-HD audio bitstreaming | + | |
| H.264, VC1, MPEG2 1080p video decoder | + | |
| Optimus | + | |
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