GeForce 840A vs Radeon HD 7870M
Find out if it is worth upgrading your current GPU setup by comparing GeForce 840A and Radeon HD 7870M. 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 840A and Radeon HD 7870M. 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 840A
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 840A | Radeon HD 7870M | |
| Power consumption (TDP) | 33 Watt | 45 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- Radeon HD 7870M has 36% more power consumption, than GeForce 840A.
- GeForce 840A is connected by PCIe 3.0 x8, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
- GeForce 840A and Radeon HD 7870M have maximum RAM of 2 GB.
- GeForce 840A is used in Desktops, and Radeon HD 7870M - in Laptops.
- GeForce 840A is build with Maxwell architecture, and Radeon HD 7870M - with GCN.
- Core clock speed of GeForce 840A is 229 MHz higher, than Radeon HD 7870M.
- GeForce 840A and Radeon HD 7870M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 7870M is 1998 MHz higher, than GeForce 840A.
Game benchmarks
| high / 1080p | 3−4 | 6−7 |
| ultra / 1080p | 2−3 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 16−18 |
| medium / 1080p | 5−6 | 8−9 |
| The average gaming FPS of Radeon HD 7870M in Assassin's Creed Odyssey is 50% more, than GeForce 840A. | ||
| high / 1080p | − | 12−14 |
| ultra / 1080p | 7−8 | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 24−27 |
| medium / 1080p | 8−9 | 12−14 |
| The average gaming FPS of Radeon HD 7870M in Battlefield 5 is 45% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 30−35 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of Radeon HD 7870M in Call of Duty: Warzone is 17% more, than GeForce 840A. | ||
| low / 768p | 120−130 | 130−140 |
| medium / 768p | 90−95 | 110−120 |
| ultra / 1080p | 40−45 | 50−55 |
| QHD / 1440p | 24−27 | 30−33 |
| 4K / 2160p | 18−20 | 27−30 |
| high / 768p | 65−70 | 80−85 |
| The average gaming FPS of Radeon HD 7870M in Counter-Strike: Global Offensive is 19% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 18−20 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 12% more, than Radeon HD 7870M. | ||
| low / 768p | 75−80 | 80−85 |
| medium / 768p | 50−55 | 60−65 |
| ultra / 1080p | 27−30 | 30−35 |
| The average gaming FPS of Radeon HD 7870M in Dota 2 is 13% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 8−9 |
| ultra / 1080p | − | 8−9 |
| 4K / 2160p | 2−3 | 3−4 |
| low / 720p | 14−16 | 18−20 |
| medium / 1080p | 6−7 | 9−10 |
| The average gaming FPS of Radeon HD 7870M in Far Cry 5 is 42% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 14−16 |
| ultra / 1080p | 7−8 | 10−11 |
| low / 720p | 50−55 | 60−65 |
| medium / 1080p | 14−16 | 21−24 |
| The average gaming FPS of Radeon HD 7870M in Fortnite is 22% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 12−14 |
| ultra / 1080p | − | 10−12 |
| QHD / 1440p | 0−1 | 1−2 |
| low / 720p | 20−22 | 24−27 |
| medium / 1080p | 9−10 | 14−16 |
| The average gaming FPS of Radeon HD 7870M in Forza Horizon 4 is 41% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 50−55 |
| medium / 768p | − | 45−50 |
| high / 1080p | 8−9 | 12−14 |
| ultra / 1080p | 5−6 | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of Radeon HD 7870M in Grand Theft Auto V is 20% more, than GeForce 840A. | ||
| high / 1080p | 3−4 | 5−6 |
| ultra / 1080p | 1−2 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 8−9 | 12−14 |
| medium / 1080p | 4−5 | 6−7 |
| The average gaming FPS of Radeon HD 7870M in Metro Exodus is 75% more, than GeForce 840A. | ||
| low / 768p | 85−90 | 95−100 |
| high / 1080p | 85−90 | 90−95 |
| ultra / 1080p | 80−85 | 80−85 |
| medium / 1080p | 85−90 | 90−95 |
| The average gaming FPS of Radeon HD 7870M in Minecraft is 5% more, than GeForce 840A. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 30−35 |
| medium / 1080p | 14−16 | 18−20 |
| The average gaming FPS of Radeon HD 7870M in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce 840A. | ||
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 12−14 |
| medium / 1080p | − | 10−12 |
| The average gaming FPS of Radeon HD 7870M in Red Dead Redemption 2 is 25% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 24−27 |
| medium / 768p | 12−14 | 16−18 |
| high / 1080p | 6−7 | 9−10 |
| ultra / 1080p | 5−6 | 6−7 |
| 4K / 2160p | − | 6−7 |
| The average gaming FPS of Radeon HD 7870M in The Witcher 3: Wild Hunt is 40% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 85−90 |
| medium / 768p | 35−40 | 45−50 |
| ultra / 1080p | 16−18 | 20−22 |
| high / 768p | 30−35 | 35−40 |
| The average gaming FPS of Radeon HD 7870M in World of Tanks is 23% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | Radeon HD 7870M | |
| Architecture | Maxwell | GCN |
| Code name | GM108 | Heathrow XT |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 24 April 2012 |
| Pipelines | 384 | 640 |
| Core clock speed | 1029 MHz | 800 MHz |
| Boost Clock | 1124 MHz | |
| Transistor count | 1,500 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 32.00 |
| Floating-point performance | 863.2 gflops | 1,024 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2002 MHz | 4000 MHz |
| Memory bandwidth | 16.02 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 | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | 5.0 | |
| Laptop size | large | |
| Check Price |