GeForce 840A vs GeForce GT 640M LE
Find out if it is worth upgrading your current GPU setup by comparing GeForce 840A and GeForce GT 640M LE. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce 840A and GeForce GT 640M LE. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
GeForce 840A
GeForce GT 640M LE is a Laptop Graphics Card
Note: GeForce GT 640M LE 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 640M LE here:
Main Specs
| GeForce 840A | GeForce GT 640M LE | |
| Power consumption (TDP) | 33 Watt | 20 Watt |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
| Memory type | DDR3 | DDR3\DDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce 840A has 65% more power consumption, than GeForce GT 640M LE.
- GeForce 840A is connected by PCIe 3.0 x8, and GeForce GT 640M LE uses PCIe 2.0 x16 interface.
- GeForce 840A and GeForce GT 640M LE have maximum RAM of 2 GB.
- GeForce 840A is used in Desktops, and GeForce GT 640M LE - in Laptops.
- GeForce 840A is build with Maxwell architecture, and GeForce GT 640M LE - with Fermi / Kepler.
- GeForce 840A and GeForce GT 640M LE are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 840A is 202 MHz higher, than GeForce GT 640M LE.
Game benchmarks
| high / 1080p | 3−4 | 0−1 |
| ultra / 1080p | 2−3 | − |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 1−2 |
| medium / 1080p | 5−6 | 0−1 |
| The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE. | ||
| ultra / 1080p | 7−8 | − |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 0−1 |
| medium / 1080p | 8−9 | − |
| low / 768p | 45−50 | 50−55 |
| high / 1080p | 30−35 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 640M LE in Call of Duty: Warzone is 25% more, than GeForce 840A. | ||
| low / 768p | 120−130 | 60−65 |
| medium / 768p | 90−95 | 27−30 |
| ultra / 1080p | 40−45 | 7−8 |
| QHD / 1440p | 24−27 | − |
| 4K / 2160p | 18−20 | − |
| high / 768p | 65−70 | 16−18 |
| The average gaming FPS of GeForce 840A in Counter-Strike: Global Offensive is 189% more, than GeForce GT 640M LE. | ||
| low / 768p | 80−85 | 70−75 |
| ultra / 1080p | 14−16 | 0−1 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 3% more, than GeForce GT 640M LE. | ||
| low / 768p | 75−80 | 45−50 |
| medium / 768p | 50−55 | 10−11 |
| ultra / 1080p | 27−30 | 0−1 |
| The average gaming FPS of GeForce 840A in Dota 2 is 124% more, than GeForce GT 640M LE. | ||
| high / 1080p | 5−6 | − |
| 4K / 2160p | 2−3 | − |
| low / 720p | 14−16 | 0−1 |
| medium / 1080p | 6−7 | − |
| high / 1080p | 12−14 | − |
| ultra / 1080p | 7−8 | − |
| low / 720p | 50−55 | 21−24 |
| medium / 1080p | 14−16 | 0−1 |
| The average gaming FPS of GeForce 840A in Fortnite is 136% more, than GeForce GT 640M LE. | ||
| high / 1080p | 7−8 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 20−22 | 0−1 |
| medium / 1080p | 9−10 | 0−1 |
| low / 768p | 45−50 | 18−20 |
| high / 1080p | 8−9 | 0−1 |
| ultra / 1080p | 5−6 | − |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | 12−14 |
| The average gaming FPS of GeForce 840A in Grand Theft Auto V is 181% more, than GeForce GT 640M LE. | ||
| high / 1080p | 3−4 | − |
| ultra / 1080p | 1−2 | − |
| 4K / 2160p | 0−1 | − |
| low / 720p | 8−9 | 0−1 |
| medium / 1080p | 4−5 | − |
| low / 768p | 85−90 | 75−80 |
| high / 1080p | 85−90 | 27−30 |
| ultra / 1080p | 80−85 | − |
| medium / 1080p | 85−90 | − |
| The average gaming FPS of GeForce 840A in Minecraft is 64% more, than GeForce GT 640M LE. | ||
| ultra / 1080p | 12−14 | − |
| low / 720p | 27−30 | 8−9 |
| medium / 1080p | 14−16 | − |
| The average gaming FPS of GeForce 840A in PLAYERUNKNOWN'S BATTLEGROUNDS is 250% more, than GeForce GT 640M LE. | ||
| ultra / 1080p | 7−8 | − |
| QHD / 1440p | 0−1 | − |
| low / 720p | 8−9 | 0−1 |
| low / 768p | 16−18 | 0−1 |
| medium / 768p | 12−14 | − |
| high / 1080p | 6−7 | − |
| ultra / 1080p | 5−6 | − |
| low / 768p | 70−75 | 45−50 |
| medium / 768p | 35−40 | 14−16 |
| ultra / 1080p | 16−18 | 0−1 |
| high / 768p | 30−35 | 12−14 |
| The average gaming FPS of GeForce 840A in World of Tanks is 88% more, than GeForce GT 640M LE. | ||
Full Specs
| GeForce 840A | GeForce GT 640M LE | |
| Architecture | Maxwell | Fermi / Kepler |
| Code name | GM108 | N13P-LP |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 22 March 2012 |
| Pipelines | 384 | 384 |
| Core clock speed | 1029 MHz | |
| Boost Clock | 1124 MHz | |
| Transistor count | 585 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | |
| Floating-point performance | 863.2 gflops | 384.0 gflops |
| Memory bus width | 64 Bit | 128bit |
| Memory clock speed | 2002 MHz | 1800 - 4000 MHz |
| Memory bandwidth | 16.02 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 | N/A |
| CUDA | 5.0 | + |
| CUDA cores | Up to 384 | |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| HDMI | + | |
| HDCP | + | |
| Maximum VGA resolution | Up to 2048x1536 | |
| 3D Blu-Ray | + | |
| Bitcoin / BTC (SHA256) | 14 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
| Check Price |