GeForce 820A vs Radeon HD 7870M
When comparing GeForce 820A and Radeon HD 7870M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 820A and Radeon HD 7870M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 820A
Radeon HD 7870M is a Laptop Graphics Card
Note: Radeon HD 7870M 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 7870M here:
Main Specs
| GeForce 820A | Radeon HD 7870M | |
| Power consumption (TDP) | 15 Watt | 45 Watt |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- Radeon HD 7870M has 200% more power consumption, than GeForce 820A.
- GeForce 820A is connected by PCIe 2.0 x16, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
- Radeon HD 7870M has 1 GB more memory, than GeForce 820A.
- GeForce 820A is used in Desktops, and Radeon HD 7870M - in Laptops.
- GeForce 820A is build with Fermi 2.0 architecture, and Radeon HD 7870M - with GCN.
- Core clock speed of Radeon HD 7870M is 25 MHz higher, than GeForce 820A.
- GeForce 820A and Radeon HD 7870M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 7870M is 2200 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 Radeon HD 7870M 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 7870M. | ||
| low / 768p | 60−65 | 130−140 |
| medium / 768p | 27−30 | 110−120 |
| ultra / 1080p | 7−8 | 50−55 |
| QHD / 1440p | − | 30−33 |
| 4K / 2160p | − | 27−30 |
| high / 768p | 16−18 | 80−85 |
| The average gaming FPS of Radeon HD 7870M 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 Radeon HD 7870M. | ||
| low / 768p | 45−50 | 80−85 |
| medium / 768p | 10−11 | 60−65 |
| ultra / 1080p | 0−1 | 30−35 |
| The average gaming FPS of Radeon HD 7870M 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 | 21−24 |
| The average gaming FPS of Radeon HD 7870M 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 Radeon HD 7870M 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 7870M 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 7870M 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 7870M in World of Tanks is 128% more, than GeForce 820A. | ||
Full Specs
| GeForce 820A | Radeon HD 7870M | |
| Architecture | Fermi 2.0 | GCN |
| Code name | GF117 | Heathrow XT |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 24 April 2012 |
| Pipelines | 96 | 640 |
| Core clock speed | 775 MHz | 800 MHz |
| Transistor count | 585 million | 1,500 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 12.40 | 32.00 |
| Floating-point performance | 297.6 gflops | 1,024 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 1800 MHz | 4000 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 | |
| Laptop size | large | |
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