GeForce 820A vs GeForce GTX 660M
Find out if it is worth upgrading your current GPU setup by comparing GeForce 820A and GeForce GTX 660M. 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 GTX 660M. 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 GTX 660M is a Laptop Graphics Card
Note: GeForce GTX 660M 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 GTX 660M here:
Main Specs
| GeForce 820A | GeForce GTX 660M | |
| Power consumption (TDP) | 15 Watt | 50 Watt |
| Interface | PCIe 2.0 x16 | MXM-B (3.0) |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce GTX 660M has 233% more power consumption, than GeForce 820A.
- GeForce 820A is connected by PCIe 2.0 x16, and GeForce GTX 660M uses MXM-B (3.0) interface.
- GeForce GTX 660M has 1 GB more memory, than GeForce 820A.
- GeForce 820A is used in Desktops, and GeForce GTX 660M - in Laptops.
- GeForce 820A is build with Fermi 2.0 architecture, and GeForce GTX 660M - with Kepler.
- Core clock speed of GeForce GTX 660M is 60 MHz higher, than GeForce 820A.
- GeForce 820A and GeForce GTX 660M are manufactured by 28 nm process technology.
- Memory clock speed of GeForce GTX 660M is 200 MHz higher, than GeForce 820A.
Game benchmarks
| high / 1080p | 0−1 | 6−7 |
| ultra / 1080p | − | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 1−2 | 16−18 |
| medium / 1080p | 0−1 | 8−9 |
| The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 1600% more, than GeForce 820A. | ||
| high / 1080p | − | 12−14 |
| ultra / 1080p | − | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 24−27 |
| medium / 1080p | − | 12−14 |
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce 820A in Call of Duty: Warzone is 6% more, than GeForce GTX 660M. | ||
| low / 768p | 60−65 | 130−140 |
| medium / 768p | 27−30 | 110−120 |
| ultra / 1080p | 7−8 | 50−55 |
| QHD / 1440p | − | 27−30 |
| 4K / 2160p | − | 27−30 |
| high / 768p | 16−18 | 80−85 |
| The average gaming FPS of GeForce GTX 660M in Counter-Strike: Global Offensive is 242% more, than GeForce 820A. | ||
| low / 768p | 70−75 | 55−60 |
| ultra / 1080p | 0−1 | 18−20 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GeForce 820A in Cyberpunk 2077 is 15% more, than GeForce GTX 660M. | ||
| low / 768p | 45−50 | 80−85 |
| medium / 768p | 10−11 | 55−60 |
| ultra / 1080p | 0−1 | 30−35 |
| The average gaming FPS of GeForce GTX 660M in Dota 2 is 141% more, than GeForce 820A. | ||
| high / 1080p | − | 8−9 |
| ultra / 1080p | − | 7−8 |
| 4K / 2160p | − | 3−4 |
| low / 720p | 0−1 | 18−20 |
| medium / 1080p | − | 8−9 |
| high / 1080p | − | 14−16 |
| ultra / 1080p | − | 10−11 |
| low / 720p | 21−24 | 60−65 |
| medium / 1080p | 0−1 | 21−24 |
| The average gaming FPS of GeForce GTX 660M in Fortnite is 181% more, than GeForce 820A. | ||
| high / 1080p | 0−1 | 12−14 |
| ultra / 1080p | − | 10−12 |
| QHD / 1440p | 0−1 | 1−2 |
| low / 720p | 0−1 | 24−27 |
| medium / 1080p | 0−1 | 14−16 |
| low / 768p | 18−20 | 50−55 |
| medium / 768p | − | 45−50 |
| high / 1080p | 0−1 | 12−14 |
| ultra / 1080p | − | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 12−14 | − |
| The average gaming FPS of GeForce GTX 660M in Grand Theft Auto V is 173% more, than GeForce 820A. | ||
| high / 1080p | − | 4−5 |
| ultra / 1080p | − | 3−4 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 12−14 |
| medium / 1080p | − | 6−7 |
| low / 768p | 75−80 | 95−100 |
| high / 1080p | 27−30 | 90−95 |
| ultra / 1080p | − | 80−85 |
| medium / 1080p | − | 90−95 |
| The average gaming FPS of GeForce GTX 660M in Minecraft is 79% more, than GeForce 820A. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | − | 14−16 |
| low / 720p | 8−9 | 30−35 |
| medium / 1080p | − | 18−20 |
| The average gaming FPS of GeForce GTX 660M in PLAYERUNKNOWN'S BATTLEGROUNDS is 300% more, than GeForce 820A. | ||
| ultra / 1080p | − | 7−8 |
| QHD / 1440p | − | 0−1 |
| low / 720p | 0−1 | 12−14 |
| medium / 1080p | − | 10−12 |
| low / 768p | 0−1 | 24−27 |
| medium / 768p | − | 16−18 |
| high / 1080p | − | 9−10 |
| ultra / 1080p | − | 6−7 |
| 4K / 2160p | − | 6−7 |
| low / 768p | 45−50 | 85−90 |
| medium / 768p | 14−16 | 45−50 |
| ultra / 1080p | 0−1 | 18−20 |
| high / 768p | 12−14 | 35−40 |
| The average gaming FPS of GeForce GTX 660M in World of Tanks is 128% more, than GeForce 820A. | ||
Full Specs
| GeForce 820A | GeForce GTX 660M | |
| Architecture | Fermi 2.0 | Kepler |
| Code name | GF117 | N13E-GE |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 22 March 2012 |
| Pipelines | 96 | 384 |
| Core clock speed | 775 MHz | 835 MHz |
| Boost Clock | 950 MHz | |
| Transistor count | 585 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 12.40 | 30.4 billion/sec |
| Floating-point performance | 297.6 gflops | 729.6 gflops |
| Memory bus width | 64 Bit | 128bit |
| Memory clock speed | 1800 MHz | 2000 MHz |
| Memory bandwidth | 14.4 GB/s | 64.0 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 | 1.1.126 |
| CUDA | 2.1 | + |
| CUDA cores | 384 | |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| SLI options | + | |
| HDMI | + | |
| HDCP | + | |
| Maximum VGA resolution | Up to 2048x1536 | |
| Bitcoin / BTC (SHA256) | 36 Mh/s | |
| Laptop size | large | |
| Optimus | + | |
| Check Price |