GeForce 820A vs Radeon HD 8790M
Find out if it is worth upgrading your current GPU setup by comparing GeForce 820A and Radeon HD 8790M. 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 Radeon HD 8790M. 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
Radeon HD 8790M is a Laptop Graphics Card
Note: Radeon HD 8790M 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 8790M here:
Main Specs
| GeForce 820A | Radeon HD 8790M | |
| Power consumption (TDP) | 15 Watt | |
| Interface | PCIe 2.0 x16 | MXM-A (3.0) |
| Supplementary power connectors | None | |
| 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 8790M uses MXM-A (3.0) interface.
- Radeon HD 8790M has 1 GB more memory, than GeForce 820A.
- GeForce 820A is used in Desktops, and Radeon HD 8790M - in Laptops.
- GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 8790M - with GCN.
- Core clock speed of Radeon HD 8790M is 75 MHz higher, than GeForce 820A.
- GeForce 820A and Radeon HD 8790M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 8790M is 2700 MHz higher, than GeForce 820A.
Game benchmarks
| high / 1080p | 0−1 | 3−4 |
| ultra / 1080p | − | 1−2 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 1−2 | 14−16 |
| medium / 1080p | 0−1 | 6−7 |
| The average gaming FPS of Radeon HD 8790M in Assassin's Creed Odyssey is 1400% more, than GeForce 820A. | ||
| high / 1080p | − | 8−9 |
| ultra / 1080p | − | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 21−24 |
| medium / 1080p | − | 9−10 |
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce 820A in Call of Duty: Warzone is 11% more, than Radeon HD 8790M. | ||
| low / 768p | 60−65 | 120−130 |
| medium / 768p | 27−30 | 100−110 |
| ultra / 1080p | 7−8 | 50−55 |
| QHD / 1440p | − | 24−27 |
| high / 768p | 16−18 | 75−80 |
| The average gaming FPS of Radeon HD 8790M in Counter-Strike: Global Offensive is 221% more, than GeForce 820A. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 0−1 | 21−24 |
| medium / 1080p | 45−50 | 40−45 |
| The average gaming FPS of GeForce 820A in Cyberpunk 2077 is 5% more, than Radeon HD 8790M. | ||
| low / 768p | 45−50 | 75−80 |
| medium / 768p | 10−11 | 55−60 |
| ultra / 1080p | 0−1 | 30−35 |
| The average gaming FPS of Radeon HD 8790M in Dota 2 is 131% more, than GeForce 820A. | ||
| high / 1080p | − | 4−5 |
| ultra / 1080p | − | 4−5 |
| 4K / 2160p | − | 1−2 |
| low / 720p | 0−1 | 14−16 |
| medium / 1080p | − | 6−7 |
| high / 1080p | − | 12−14 |
| ultra / 1080p | − | 7−8 |
| QHD / 1440p | − | 4−5 |
| low / 720p | 21−24 | 60−65 |
| medium / 1080p | 0−1 | 18−20 |
| The average gaming FPS of Radeon HD 8790M in Fortnite is 181% more, than GeForce 820A. | ||
| high / 1080p | 0−1 | 8−9 |
| ultra / 1080p | − | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 21−24 |
| medium / 1080p | 0−1 | 10−11 |
| low / 768p | 18−20 | 50−55 |
| high / 1080p | 0−1 | 10−11 |
| ultra / 1080p | − | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 12−14 | 40−45 |
| The average gaming FPS of Radeon HD 8790M in Grand Theft Auto V is 193% more, than GeForce 820A. | ||
| high / 1080p | − | 2−3 |
| ultra / 1080p | − | 0−1 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 9−10 |
| medium / 1080p | − | 4−5 |
| low / 768p | 75−80 | 85−90 |
| high / 1080p | 27−30 | 70−75 |
| The average gaming FPS of Radeon HD 8790M in Minecraft is 50% more, than GeForce 820A. | ||
| ultra / 1080p | − | 12−14 |
| low / 720p | 8−9 | 30−35 |
| medium / 1080p | − | 14−16 |
| The average gaming FPS of Radeon HD 8790M in PLAYERUNKNOWN'S BATTLEGROUNDS is 300% more, than GeForce 820A. | ||
| high / 1080p | − | 7−8 |
| ultra / 1080p | − | 4−5 |
| QHD / 1440p | − | 0−1 |
| low / 720p | 0−1 | 8−9 |
| medium / 1080p | − | 8−9 |
| low / 768p | 0−1 | 20−22 |
| medium / 768p | − | 12−14 |
| high / 1080p | − | 7−8 |
| ultra / 1080p | − | 5−6 |
| 4K / 2160p | − | 1−2 |
| low / 768p | 45−50 | 75−80 |
| medium / 768p | 14−16 | 40−45 |
| ultra / 1080p | 0−1 | 18−20 |
| high / 768p | 12−14 | 30−35 |
| The average gaming FPS of Radeon HD 8790M in World of Tanks is 100% more, than GeForce 820A. | ||
Full Specs
| GeForce 820A | Radeon HD 8790M | |
| Architecture | Fermi 2.0 | GCN |
| Code name | GF117 | Mars XTX |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 16 November 2012 |
| Pipelines | 96 | 384 |
| Core clock speed | 775 MHz | 850 MHz |
| Boost Clock | 900 MHz | |
| Transistor count | 585 million | 950 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 12.40 | 21.60 |
| Floating-point performance | 297.6 gflops | 691.2 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1800 MHz | 4500 MHz |
| Memory bandwidth | 14.4 GB/s | 64 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 | |
| Bitcoin / BTC (SHA256) | 80 Mh/s | |
| Laptop size | medium sized | |
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