GeForce 840A vs GeForce GT 755M
In this comparison between GeForce 840A and GeForce GT 755M 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 840A will be the best choice, for others GeForce GT 755M will be their preference. Study the comparison tables below and make your choice.
GeForce 840A
GeForce GT 755M is a Laptop Graphics Card
Note: GeForce GT 755M 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 GT 755M here:
Main Specs
| GeForce 840A | GeForce GT 755M | |
| Power consumption (TDP) | 33 Watt | 50 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce GT 755M has 51% more power consumption, than GeForce 840A.
- GeForce 840A is connected by PCIe 3.0 x8, and GeForce GT 755M uses PCIe 3.0 x16 interface.
- GeForce GT 755M has 2 GB more memory, than GeForce 840A.
- GeForce 840A is used in Desktops, and GeForce GT 755M - in Laptops.
- GeForce 840A is build with Maxwell architecture, and GeForce GT 755M - with Kepler.
- Core clock speed of GeForce 840A is 49 MHz higher, than GeForce GT 755M.
- GeForce 840A and GeForce GT 755M are manufactured by 28 nm process technology.
- Memory clock speed of GeForce GT 755M is 3398 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 | 18−20 |
| medium / 1080p | 5−6 | 9−10 |
| The average gaming FPS of GeForce GT 755M in Assassin's Creed Odyssey is 66% more, than GeForce 840A. | ||
| high / 1080p | − | 12−14 |
| ultra / 1080p | 7−8 | 10−12 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 27−30 |
| medium / 1080p | 8−9 | 14−16 |
| The average gaming FPS of GeForce GT 755M in Battlefield 5 is 63% 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 GT 755M 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 | 30−35 |
| 4K / 2160p | 18−20 | 27−30 |
| high / 768p | 65−70 | 85−90 |
| The average gaming FPS of GeForce GT 755M in Counter-Strike: Global Offensive is 24% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 21−24 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 9% more, than GeForce GT 755M. | ||
| low / 768p | 75−80 | 85−90 |
| medium / 768p | 50−55 | 60−65 |
| ultra / 1080p | 27−30 | 35−40 |
| The average gaming FPS of GeForce GT 755M in Dota 2 is 19% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 9−10 |
| ultra / 1080p | − | 8−9 |
| 4K / 2160p | 2−3 | 4−5 |
| low / 720p | 14−16 | 21−24 |
| medium / 1080p | 6−7 | 10−11 |
| The average gaming FPS of GeForce GT 755M in Far Cry 5 is 57% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 16−18 |
| ultra / 1080p | 7−8 | 10−12 |
| low / 720p | 50−55 | 65−70 |
| medium / 1080p | 14−16 | 24−27 |
| The average gaming FPS of GeForce GT 755M in Fortnite is 36% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 12−14 |
| ultra / 1080p | − | 12−14 |
| QHD / 1440p | 0−1 | 2−3 |
| low / 720p | 20−22 | 27−30 |
| medium / 1080p | 9−10 | 14−16 |
| The average gaming FPS of GeForce GT 755M in Forza Horizon 4 is 50% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 55−60 |
| medium / 768p | − | 50−55 |
| high / 1080p | 8−9 | 14−16 |
| ultra / 1080p | 5−6 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of GeForce GT 755M in Grand Theft Auto V is 30% 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 | 14−16 |
| medium / 1080p | 4−5 | 7−8 |
| The average gaming FPS of GeForce GT 755M 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 | 95−100 |
| The average gaming FPS of GeForce GT 755M in Minecraft is 6% more, than GeForce 840A. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 35−40 |
| medium / 1080p | 14−16 | 18−20 |
| The average gaming FPS of GeForce GT 755M in PLAYERUNKNOWN'S BATTLEGROUNDS is 27% more, than GeForce 840A. | ||
| ultra / 1080p | 7−8 | 8−9 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 14−16 |
| medium / 1080p | − | 10−12 |
| The average gaming FPS of GeForce GT 755M in Red Dead Redemption 2 is 37% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 27−30 |
| medium / 768p | 12−14 | 18−20 |
| high / 1080p | 6−7 | 10−11 |
| ultra / 1080p | 5−6 | 7−8 |
| 4K / 2160p | − | 6−7 |
| The average gaming FPS of GeForce GT 755M in The Witcher 3: Wild Hunt is 60% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 85−90 |
| medium / 768p | 35−40 | 45−50 |
| ultra / 1080p | 16−18 | 21−24 |
| high / 768p | 30−35 | 35−40 |
| The average gaming FPS of GeForce GT 755M in World of Tanks is 23% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | GeForce GT 755M | |
| Architecture | Maxwell | Kepler |
| Code name | GM108 | N14P- |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 25 June 2013 |
| Pipelines | 384 | 384 |
| Core clock speed | 1029 MHz | 980 MHz |
| Boost Clock | 1124 MHz | |
| Transistor count | 1,270 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 31.36 |
| Floating-point performance | 863.2 gflops | 752.6 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2002 MHz | 5400 MHz |
| Memory bandwidth | 16.02 GB/s | 86.4 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 API |
| 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 | + |
| Bus support | PCI Express 3.0, PCI Express 2.0 | |
| HDMI | + | |
| Bitcoin / BTC (SHA256) | 27 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 | + | |
| Blu-Ray 3D Support | + | |
| 3D Vision / 3DTV Play | + | |
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