GeForce 820A vs GeForce GT 640M LE
Find out if it is worth upgrading your current GPU setup by comparing GeForce 820A 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 820A 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 820A
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 820A | GeForce GT 640M LE | |
| Power consumption (TDP) | 15 Watt | 20 Watt |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Memory type | DDR3 | DDR3\DDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce GT 640M LE has 33% more power consumption, than GeForce 820A.
- Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
- GeForce GT 640M LE has 1 GB more memory, than GeForce 820A.
- GeForce 820A is used in Desktops, and GeForce GT 640M LE - in Laptops.
- GeForce 820A is build with Fermi 2.0 architecture, and GeForce GT 640M LE - with Fermi / Kepler.
- GeForce 820A and GeForce GT 640M LE are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 820A and GeForce GT 640M LE is 1800 MHz.
Game benchmarks
| high / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 1−2 | 1−2 |
| medium / 1080p | 0−1 | 0−1 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Assassin's Creed Odyssey. | ||
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 0−1 |
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 60−65 | 60−65 |
| medium / 768p | 27−30 | 27−30 |
| ultra / 1080p | 7−8 | 7−8 |
| high / 768p | 16−18 | 16−18 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Counter-Strike: Global Offensive. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 0−1 | 0−1 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 45−50 | 45−50 |
| medium / 768p | 10−11 | 10−11 |
| ultra / 1080p | 0−1 | 0−1 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Dota 2. | ||
| low / 720p | 0−1 | 0−1 |
| low / 720p | 21−24 | 21−24 |
| medium / 1080p | 0−1 | 0−1 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Fortnite. | ||
| high / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 0−1 |
| medium / 1080p | 0−1 | 0−1 |
| low / 768p | 18−20 | 18−20 |
| high / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 12−14 | 12−14 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Grand Theft Auto V. | ||
| low / 720p | 0−1 | 0−1 |
| low / 768p | 75−80 | 75−80 |
| high / 1080p | 27−30 | 27−30 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in Minecraft. | ||
| low / 720p | 8−9 | 8−9 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| low / 720p | 0−1 | 0−1 |
| low / 768p | 0−1 | 0−1 |
| low / 768p | 45−50 | 45−50 |
| medium / 768p | 14−16 | 14−16 |
| ultra / 1080p | 0−1 | 0−1 |
| high / 768p | 12−14 | 12−14 |
| GeForce 820A and GeForce GT 640M LE have the same average FPS in World of Tanks. | ||
Full Specs
| GeForce 820A | GeForce GT 640M LE | |
| Architecture | Fermi 2.0 | Fermi / Kepler |
| Code name | GF117 | N13P-LP |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 22 March 2012 |
| Pipelines | 96 | 384 |
| Core clock speed | 775 MHz | |
| Transistor count | 585 million | 585 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 12.40 | |
| Floating-point performance | 297.6 gflops | 384.0 gflops |
| Memory bus width | 64 Bit | 128bit |
| Memory clock speed | 1800 MHz | 1800 - 4000 MHz |
| Memory bandwidth | 14.4 GB/s | |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 API |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.5 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | N/A | N/A |
| CUDA | 2.1 | + |
| 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 |