GeForce 820A vs Radeon HD 8770M
When choosing between GeForce 820A and Radeon HD 8770M, 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 820A and Radeon HD 8770M.
GeForce 820A
Radeon HD 8770M is a Laptop Graphics Card
Note: Radeon HD 8770M 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 Radeon HD 8770M here:
Main Specs
| GeForce 820A | Radeon HD 8770M | |
| Power consumption (TDP) | 15 Watt | |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
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- GeForce 820A is connected by PCIe 2.0 x16, and Radeon HD 8770M uses PCIe 3.0 x8 interface.
- Radeon HD 8770M has 1 GB more memory, than GeForce 820A.
- GeForce 820A is used in Desktops, and Radeon HD 8770M - in Laptops.
- GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 8770M - with GCN.
- Both graphics cards have the same core clock speed.
- GeForce 820A and Radeon HD 8770M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 8770M is 2700 MHz higher, than GeForce 820A.
Game benchmarks
| high / 1080p | 0−1 | 7−8 |
| 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 Radeon HD 8770M 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 Radeon HD 8770M. | ||
| low / 768p | 60−65 | 140−150 |
| medium / 768p | 27−30 | 110−120 |
| ultra / 1080p | 7−8 | 55−60 |
| QHD / 1440p | − | 30−33 |
| 4K / 2160p | − | 27−30 |
| high / 768p | 16−18 | 80−85 |
| The average gaming FPS of Radeon HD 8770M in Counter-Strike: Global Offensive is 257% more, than GeForce 820A. | ||
| low / 768p | 70−75 | 55−60 |
| ultra / 1080p | 0−1 | 20−22 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GeForce 820A in Cyberpunk 2077 is 15% more, than Radeon HD 8770M. | ||
| low / 768p | 45−50 | 80−85 |
| medium / 768p | 10−11 | 60−65 |
| ultra / 1080p | 0−1 | 35−40 |
| The average gaming FPS of Radeon HD 8770M in Dota 2 is 148% more, than GeForce 820A. | ||
| high / 1080p | − | 8−9 |
| ultra / 1080p | − | 8−9 |
| 4K / 2160p | − | 3−4 |
| low / 720p | 0−1 | 18−20 |
| medium / 1080p | − | 9−10 |
| high / 1080p | − | 14−16 |
| ultra / 1080p | − | 10−11 |
| low / 720p | 21−24 | 60−65 |
| medium / 1080p | 0−1 | 24−27 |
| The average gaming FPS of Radeon HD 8770M 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 | 27−30 |
| 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 Radeon HD 8770M in Grand Theft Auto V is 173% more, than GeForce 820A. | ||
| high / 1080p | − | 5−6 |
| 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 Radeon HD 8770M 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 Radeon HD 8770M 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 | 20−22 |
| high / 768p | 12−14 | 35−40 |
| The average gaming FPS of Radeon HD 8770M in World of Tanks is 128% more, than GeForce 820A. | ||
Full Specs
| GeForce 820A | Radeon HD 8770M | |
| Architecture | Fermi 2.0 | GCN |
| Code name | GF117 | Mars |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 16 November 2012 |
| Pipelines | 96 | 384 |
| Core clock speed | 775 MHz | 775 MHz |
| Boost Clock | 825 MHz | |
| Transistor count | 585 million | 950 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 12.40 | 19.80 |
| Floating-point performance | 297.6 gflops | 633.6 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1800 MHz | 4500 MHz |
| Memory bandwidth | 14.4 GB/s | 72 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 (11_1) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 1.2 |
| Vulkan | N/A | 1.2.131 |
| CUDA | 2.1 | |
| Laptop size | medium sized | |
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