GeForce 840M vs GeForce 940A
In this comparison between GeForce 840M and GeForce 940A you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 840M will be the best choice, for others GeForce 940A will be their preference. Study the comparison tables below and make your choice.
GeForce 940A
GeForce 840M is a Laptop Graphics Card
Note: GeForce 840M 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 840M here:
Main Specs
| GeForce 840M | GeForce 940A | |
| Power consumption (TDP) | 33 Watt | 33 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Memory type | DDR3 | DDR3 |
| Maximum RAM amount | 4 GB | 1 GB |
| Display Connectors | No outputs | No outputs |
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- Both graphics cards have the same power consumption of 33 Watt.
- Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
- GeForce 840M has 3 GB more memory, than GeForce 940A.
- GeForce 840M is used in Laptops, and GeForce 940A - in Desktops.
- GeForce 840M and GeForce 940A are build with Maxwell architecture.
- Both graphics cards have the same core clock speed.
- GeForce 840M and GeForce 940A are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 940A is 2 MHz higher, than GeForce 840M.
Game benchmarks
| high / 1080p | 1−2 | 4−5 |
| ultra / 1080p | 0−1 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 14−16 |
| medium / 1080p | 3−4 | 5−6 |
| The average gaming FPS of GeForce 940A in Assassin's Creed Odyssey is 33% more, than GeForce 840M. | ||
| ultra / 1080p | 4−5 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 16−18 | 18−20 |
| medium / 1080p | 5−6 | 8−9 |
| The average gaming FPS of GeForce 940A in Battlefield 5 is 22% more, than GeForce 840M. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 40−45 | 30−35 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce 840M in Call of Duty: Warzone is 12% more, than GeForce 940A. | ||
| low / 768p | 120−130 | 120−130 |
| medium / 768p | 90−95 | 90−95 |
| ultra / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 24−27 | 24−27 |
| 4K / 2160p | 18−20 | 18−20 |
| high / 768p | 65−70 | 65−70 |
| GeForce 840M and GeForce 940A have the same average FPS in Counter-Strike: Global Offensive. | ||
| low / 768p | 85−90 | 80−85 |
| ultra / 1080p | 16−18 | 14−16 |
| medium / 1080p | 40−45 | 40−45 |
| The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 6% more, than GeForce 940A. | ||
| low / 768p | 75−80 | 75−80 |
| medium / 768p | 50−55 | 50−55 |
| ultra / 1080p | 24−27 | 27−30 |
| The average gaming FPS of GeForce 940A in Dota 2 is 1% more, than GeForce 840M. | ||
| high / 1080p | 2−3 | 5−6 |
| ultra / 1080p | 2−3 | − |
| 4K / 2160p | 0−1 | 2−3 |
| low / 720p | 12−14 | 14−16 |
| medium / 1080p | 3−4 | 6−7 |
| The average gaming FPS of GeForce 940A in Far Cry 5 is 50% more, than GeForce 840M. | ||
| high / 1080p | 10−11 | 12−14 |
| ultra / 1080p | 5−6 | 7−8 |
| QHD / 1440p | 2−3 | − |
| low / 720p | 50−55 | 50−55 |
| medium / 1080p | 10−12 | 14−16 |
| The average gaming FPS of GeForce 940A in Fortnite is 15% more, than GeForce 840M. | ||
| high / 1080p | 4−5 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 16−18 | 20−22 |
| medium / 1080p | 7−8 | 9−10 |
| The average gaming FPS of GeForce 940A in Forza Horizon 4 is 33% more, than GeForce 840M. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 5−6 | 7−8 |
| ultra / 1080p | 2−3 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | 35−40 |
| The average gaming FPS of GeForce 940A in Grand Theft Auto V is 4% more, than GeForce 840M. | ||
| high / 1080p | 1−2 | 3−4 |
| ultra / 1080p | 0−1 | 1−2 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 5−6 | 8−9 |
| medium / 1080p | 3−4 | 4−5 |
| The average gaming FPS of GeForce 940A in Metro Exodus is 66% more, than GeForce 840M. | ||
| low / 768p | 90−95 | 85−90 |
| high / 1080p | 85−90 | 85−90 |
| ultra / 1080p | 70−75 | 80−85 |
| medium / 1080p | 90−95 | 85−90 |
| GeForce 840M and GeForce 940A have the same average FPS in Minecraft. | ||
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 27−30 | 27−30 |
| medium / 1080p | 14−16 | 14−16 |
| GeForce 840M and GeForce 940A have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| ultra / 1080p | 4−5 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 6−7 | 8−9 |
| The average gaming FPS of GeForce 940A in Red Dead Redemption 2 is 60% more, than GeForce 840M. | ||
| low / 768p | 12−14 | 16−18 |
| medium / 768p | 9−10 | 10−12 |
| high / 1080p | 4−5 | 5−6 |
| ultra / 1080p | 3−4 | 4−5 |
| 4K / 2160p | 0−1 | 0−1 |
| The average gaming FPS of GeForce 940A in The Witcher 3: Wild Hunt is 28% more, than GeForce 840M. | ||
| low / 768p | 75−80 | 70−75 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 16−18 | 16−18 |
| high / 768p | 30−35 | 30−35 |
| The average gaming FPS of GeForce 840M in World of Tanks is 5% more, than GeForce 940A. | ||
Full Specs
| GeForce 840M | GeForce 940A | |
| Architecture | Maxwell | Maxwell |
| Code name | N15S-GT | GM108 |
| Type | Laptop | Desktop |
| Release date | 12 March 2014 | 13 March 2015 |
| Pipelines | 384 | 384 |
| Core clock speed | 1029 MHz | 1029 MHz |
| Boost Clock | 1124 MHz | 1124 MHz |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 17.98 |
| Floating-point performance | 863.2 gflops | 863.2 gflops |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 2000 MHz | 2002 MHz |
| Memory bandwidth | 16.02 GB/s | 16.02 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | + | 5.0 |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| Bitcoin / BTC (SHA256) | 92 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
| GPU Boost | 2.0 | |
| GameWorks | + | |
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