GeForce 840A vs Radeon HD 7850M
When comparing GeForce 840A and Radeon HD 7850M, 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 840A and Radeon HD 7850M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840A
Radeon HD 7850M is a Laptop Graphics Card
Note: Radeon HD 7850M 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 7850M here:
Main Specs
| GeForce 840A | Radeon HD 7850M | |
| Power consumption (TDP) | 33 Watt | 40 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 7850M has 21% more power consumption, than GeForce 840A.
- GeForce 840A is connected by PCIe 3.0 x8, and Radeon HD 7850M uses PCIe 3.0 x16 interface.
- GeForce 840A and Radeon HD 7850M have maximum RAM of 2 GB.
- GeForce 840A is used in Desktops, and Radeon HD 7850M - in Laptops.
- GeForce 840A is build with Maxwell architecture, and Radeon HD 7850M - with GCN.
- Core clock speed of GeForce 840A is 354 MHz higher, than Radeon HD 7850M.
- GeForce 840A and Radeon HD 7850M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 7850M is 1998 MHz higher, than GeForce 840A.
Game benchmarks
| high / 1080p | 3−4 | 6−7 |
| ultra / 1080p | 2−3 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 14−16 |
| medium / 1080p | 5−6 | 7−8 |
| The average gaming FPS of Radeon HD 7850M in Assassin's Creed Odyssey is 33% more, than GeForce 840A. | ||
| high / 1080p | − | 10−12 |
| ultra / 1080p | 7−8 | 9−10 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 21−24 |
| medium / 1080p | 8−9 | 10−12 |
| The average gaming FPS of Radeon HD 7850M in Battlefield 5 is 27% 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 7850M in Call of Duty: Warzone is 17% more, than GeForce 840A. | ||
| low / 768p | 120−130 | 120−130 |
| medium / 768p | 90−95 | 100−110 |
| ultra / 1080p | 40−45 | 50−55 |
| QHD / 1440p | 24−27 | 27−30 |
| 4K / 2160p | 18−20 | − |
| high / 768p | 65−70 | 75−80 |
| The average gaming FPS of Radeon HD 7850M in Counter-Strike: Global Offensive is 10% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 16−18 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 15% more, than Radeon HD 7850M. | ||
| low / 768p | 75−80 | 80−85 |
| medium / 768p | 50−55 | 55−60 |
| ultra / 1080p | 27−30 | 30−35 |
| The average gaming FPS of Radeon HD 7850M in Dota 2 is 9% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 7−8 |
| ultra / 1080p | − | 7−8 |
| 4K / 2160p | 2−3 | 3−4 |
| low / 720p | 14−16 | 16−18 |
| medium / 1080p | 6−7 | 8−9 |
| The average gaming FPS of Radeon HD 7850M in Far Cry 5 is 28% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 14−16 |
| ultra / 1080p | 7−8 | 10−11 |
| low / 720p | 50−55 | 55−60 |
| medium / 1080p | 14−16 | 20−22 |
| The average gaming FPS of Radeon HD 7850M in Fortnite is 18% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 10−11 |
| QHD / 1440p | 0−1 | − |
| 4K / 2160p | − | 8−9 |
| low / 720p | 20−22 | 24−27 |
| medium / 1080p | 9−10 | 12−14 |
| The average gaming FPS of Radeon HD 7850M in Forza Horizon 4 is 33% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 50−55 |
| medium / 768p | − | 40−45 |
| high / 1080p | 8−9 | 10−12 |
| ultra / 1080p | 5−6 | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of Radeon HD 7850M in Grand Theft Auto V is 15% more, than GeForce 840A. | ||
| high / 1080p | 3−4 | 4−5 |
| ultra / 1080p | 1−2 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 8−9 | 10−12 |
| medium / 1080p | 4−5 | 6−7 |
| The average gaming FPS of Radeon HD 7850M in Metro Exodus is 50% more, than GeForce 840A. | ||
| low / 768p | 85−90 | 90−95 |
| high / 1080p | 85−90 | 85−90 |
| ultra / 1080p | 80−85 | 75−80 |
| medium / 1080p | 85−90 | 90−95 |
| The average gaming FPS of Radeon HD 7850M in Minecraft is 1% more, than GeForce 840A. | ||
| high / 1080p | − | 16−18 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 30−33 |
| medium / 1080p | 14−16 | 16−18 |
| The average gaming FPS of Radeon HD 7850M in PLAYERUNKNOWN'S BATTLEGROUNDS is 16% more, than GeForce 840A. | ||
| ultra / 1080p | 7−8 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 10−12 |
| medium / 1080p | − | 10−11 |
| The average gaming FPS of Radeon HD 7850M in Red Dead Redemption 2 is 12% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 21−24 |
| medium / 768p | 12−14 | 14−16 |
| high / 1080p | 6−7 | 8−9 |
| ultra / 1080p | 5−6 | 6−7 |
| The average gaming FPS of Radeon HD 7850M in The Witcher 3: Wild Hunt is 30% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 85−90 |
| medium / 768p | 35−40 | 40−45 |
| ultra / 1080p | 16−18 | 18−20 |
| high / 768p | 30−35 | 35−40 |
| The average gaming FPS of Radeon HD 7850M in World of Tanks is 17% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | Radeon HD 7850M | |
| Architecture | Maxwell | GCN |
| Code name | GM108 | Heathrow Pro |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 24 April 2012 |
| Pipelines | 384 | 640 |
| Core clock speed | 1029 MHz | 675 MHz |
| Boost Clock | 1124 MHz | |
| Transistor count | 1,500 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 27.00 |
| Floating-point performance | 863.2 gflops | 864.0 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 |