GeForce 840A vs GeForce 940MX
When choosing between GeForce 840A and GeForce 940MX, 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 940MX.
GeForce 840A
GeForce 940MX is a Laptop Graphics Card
Note: GeForce 940MX 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 940MX here:
Main Specs
| GeForce 840A | GeForce 940MX | |
| Power consumption (TDP) | 33 Watt | 23 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Supplementary power connectors | None | |
| Memory type | DDR3 | DDR3, GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce 840A has 43% more power consumption, than GeForce 940MX.
- Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
- GeForce 940MX has 2 GB more memory, than GeForce 840A.
- GeForce 840A is used in Desktops, and GeForce 940MX - in Laptops.
- GeForce 840A and GeForce 940MX are build with Maxwell architecture.
- Core clock speed of GeForce 940MX is 93 MHz higher, than GeForce 840A.
- GeForce 840A and GeForce 940MX are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 940MX is 1998 MHz higher, than GeForce 840A.
Game benchmarks
| high / 1080p | 3−4 | 7−8 |
| ultra / 1080p | 2−3 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 16−18 |
| medium / 1080p | 5−6 | 8−9 |
| The average gaming FPS of GeForce 940MX in Assassin's Creed Odyssey is 50% more, than GeForce 840A. | ||
| high / 1080p | − | 12−14 |
| ultra / 1080p | 7−8 | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 24−27 |
| medium / 1080p | 8−9 | 12−14 |
| The average gaming FPS of GeForce 940MX in Battlefield 5 is 45% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 30−35 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce 940MX in Call of Duty: Warzone is 17% more, than GeForce 840A. | ||
| low / 768p | 120−130 | 140−150 |
| medium / 768p | 90−95 | 110−120 |
| ultra / 1080p | 40−45 | 55−60 |
| QHD / 1440p | 24−27 | 30−33 |
| 4K / 2160p | 18−20 | 27−30 |
| high / 768p | 65−70 | 80−85 |
| The average gaming FPS of GeForce 940MX in Counter-Strike: Global Offensive is 22% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 20−22 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 9% more, than GeForce 940MX. | ||
| low / 768p | 75−80 | 80−85 |
| medium / 768p | 50−55 | 60−65 |
| ultra / 1080p | 27−30 | 35−40 |
| The average gaming FPS of GeForce 940MX in Dota 2 is 15% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 8−9 |
| ultra / 1080p | − | 8−9 |
| 4K / 2160p | 2−3 | 3−4 |
| low / 720p | 14−16 | 18−20 |
| medium / 1080p | 6−7 | 9−10 |
| The average gaming FPS of GeForce 940MX in Far Cry 5 is 42% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 14−16 |
| ultra / 1080p | 7−8 | 10−11 |
| low / 720p | 50−55 | 60−65 |
| medium / 1080p | 14−16 | 24−27 |
| The average gaming FPS of GeForce 940MX in Fortnite is 27% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 12−14 |
| ultra / 1080p | − | 10−12 |
| QHD / 1440p | 0−1 | 1−2 |
| low / 720p | 20−22 | 27−30 |
| medium / 1080p | 9−10 | 14−16 |
| The average gaming FPS of GeForce 940MX in Forza Horizon 4 is 50% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 50−55 |
| medium / 768p | − | 45−50 |
| high / 1080p | 8−9 | 12−14 |
| ultra / 1080p | 5−6 | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of GeForce 940MX in Grand Theft Auto V is 20% more, than GeForce 840A. | ||
| high / 1080p | 3−4 | 5−6 |
| ultra / 1080p | 1−2 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 8−9 | 12−14 |
| medium / 1080p | 4−5 | 6−7 |
| The average gaming FPS of GeForce 940MX in Metro Exodus is 75% more, than GeForce 840A. | ||
| low / 768p | 85−90 | 95−100 |
| high / 1080p | 85−90 | 90−95 |
| ultra / 1080p | 80−85 | 80−85 |
| medium / 1080p | 85−90 | 90−95 |
| The average gaming FPS of GeForce 940MX in Minecraft is 5% more, than GeForce 840A. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 30−35 |
| medium / 1080p | 14−16 | 18−20 |
| The average gaming FPS of GeForce 940MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce 840A. | ||
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 12−14 |
| medium / 1080p | − | 10−12 |
| The average gaming FPS of GeForce 940MX in Red Dead Redemption 2 is 25% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 24−27 |
| medium / 768p | 12−14 | 16−18 |
| high / 1080p | 6−7 | 9−10 |
| ultra / 1080p | 5−6 | 6−7 |
| 4K / 2160p | − | 6−7 |
| The average gaming FPS of GeForce 940MX in The Witcher 3: Wild Hunt is 40% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 85−90 |
| medium / 768p | 35−40 | 45−50 |
| ultra / 1080p | 16−18 | 20−22 |
| high / 768p | 30−35 | 35−40 |
| The average gaming FPS of GeForce 940MX in World of Tanks is 23% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | GeForce 940MX | |
| Architecture | Maxwell | Maxwell |
| Code name | GM108 | N16S-GTR-B/S |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 10 March 2016 |
| Pipelines | 384 | 384 |
| Core clock speed | 1029 MHz | 1122 MHz |
| Boost Clock | 1124 MHz | 1242 MHz |
| Transistor count | 1,870 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 23.83 |
| Floating-point performance | 863.2 gflops | 762.6 gflops |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 2002 MHz | 4000 MHz |
| Memory bandwidth | 16.02 GB/s | 40.1 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 | 1.2 |
| Vulkan | 1.1.126 | 1.1 |
| CUDA | 5.0 | + |
| Bus support | PCI Express 3.0 | |
| Bitcoin / BTC (SHA256) | 102 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
| GPU Boost | 2.0 | |
| GameWorks | + | |
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