GeForce 840A vs Radeon HD 7770M
Find out if it is worth upgrading your current GPU setup by comparing GeForce 840A and Radeon HD 7770M. 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 7770M. 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 7770M is a Laptop Graphics Card
Note: Radeon HD 7770M 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 7770M here:
Main Specs
| GeForce 840A | Radeon HD 7770M | |
| Power consumption (TDP) | 33 Watt | 32 Watt |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 1 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce 840A has 3% more power consumption, than Radeon HD 7770M.
- GeForce 840A is connected by PCIe 3.0 x8, and Radeon HD 7770M uses PCIe 2.0 x16 interface.
- GeForce 840A has 1 GB more memory, than Radeon HD 7770M.
- GeForce 840A is used in Desktops, and Radeon HD 7770M - in Laptops.
- GeForce 840A is build with Maxwell architecture, and Radeon HD 7770M - with GCN.
- Core clock speed of GeForce 840A is 354 MHz higher, than Radeon HD 7770M.
- GeForce 840A and Radeon HD 7770M are manufactured by 28 nm process technology.
- Memory clock speed of Radeon HD 7770M is 1998 MHz higher, than GeForce 840A.
Game benchmarks
| high / 1080p | 3−4 | 9−10 |
| ultra / 1080p | 2−3 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 21−24 |
| medium / 1080p | 5−6 | 10−12 |
| The average gaming FPS of Radeon HD 7770M in Assassin's Creed Odyssey is 100% more, than GeForce 840A. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | 7−8 | 12−14 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 30−35 |
| medium / 1080p | 8−9 | 16−18 |
| The average gaming FPS of Radeon HD 7770M in Battlefield 5 is 81% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 30−35 | − |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce 840A and Radeon HD 7770M have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 120−130 | 160−170 |
| medium / 768p | 90−95 | 130−140 |
| ultra / 1080p | 40−45 | 65−70 |
| QHD / 1440p | 24−27 | 35−40 |
| 4K / 2160p | 18−20 | 27−30 |
| high / 768p | 65−70 | 100−110 |
| The average gaming FPS of Radeon HD 7770M in Counter-Strike: Global Offensive is 43% more, than GeForce 840A. | ||
| low / 768p | 80−85 | 55−60 |
| ultra / 1080p | 14−16 | 24−27 |
| medium / 1080p | 40−45 | 45−50 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 6% more, than Radeon HD 7770M. | ||
| low / 768p | 75−80 | 90−95 |
| medium / 768p | 50−55 | 70−75 |
| ultra / 1080p | 27−30 | 40−45 |
| The average gaming FPS of Radeon HD 7770M in Dota 2 is 32% more, than GeForce 840A. | ||
| high / 1080p | 5−6 | 10−12 |
| ultra / 1080p | − | 10−11 |
| 4K / 2160p | 2−3 | 4−5 |
| low / 720p | 14−16 | 24−27 |
| medium / 1080p | 6−7 | 12−14 |
| The average gaming FPS of Radeon HD 7770M in Far Cry 5 is 85% more, than GeForce 840A. | ||
| high / 1080p | 12−14 | 18−20 |
| ultra / 1080p | 7−8 | 12−14 |
| low / 720p | 50−55 | 70−75 |
| medium / 1080p | 14−16 | 30−35 |
| The average gaming FPS of Radeon HD 7770M in Fortnite is 54% more, than GeForce 840A. | ||
| high / 1080p | 7−8 | 16−18 |
| ultra / 1080p | − | 14−16 |
| QHD / 1440p | 0−1 | 3−4 |
| low / 720p | 20−22 | 30−35 |
| medium / 1080p | 9−10 | 18−20 |
| The average gaming FPS of Radeon HD 7770M in Forza Horizon 4 is 83% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 60−65 |
| medium / 768p | − | 55−60 |
| high / 1080p | 8−9 | 18−20 |
| ultra / 1080p | 5−6 | 8−9 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of Radeon HD 7770M in Grand Theft Auto V is 50% more, than GeForce 840A. | ||
| high / 1080p | 3−4 | 6−7 |
| ultra / 1080p | 1−2 | 4−5 |
| 4K / 2160p | 0−1 | 1−2 |
| low / 720p | 8−9 | 18−20 |
| medium / 1080p | 4−5 | 8−9 |
| The average gaming FPS of Radeon HD 7770M in Metro Exodus is 125% more, than GeForce 840A. | ||
| low / 768p | 85−90 | 100−110 |
| high / 1080p | 85−90 | 95−100 |
| ultra / 1080p | 80−85 | 85−90 |
| medium / 1080p | 85−90 | 95−100 |
| The average gaming FPS of Radeon HD 7770M in Minecraft is 11% more, than GeForce 840A. | ||
| high / 1080p | − | 18−20 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 27−30 | 40−45 |
| medium / 1080p | 14−16 | 18−20 |
| The average gaming FPS of Radeon HD 7770M in PLAYERUNKNOWN'S BATTLEGROUNDS is 38% more, than GeForce 840A. | ||
| high / 1080p | − | 12−14 |
| ultra / 1080p | 7−8 | 8−9 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 16−18 |
| medium / 1080p | − | 12−14 |
| The average gaming FPS of Radeon HD 7770M in Red Dead Redemption 2 is 50% more, than GeForce 840A. | ||
| low / 768p | 16−18 | 30−35 |
| medium / 768p | 12−14 | 21−24 |
| high / 1080p | 6−7 | 12−14 |
| ultra / 1080p | 5−6 | 7−8 |
| 4K / 2160p | − | 7−8 |
| The average gaming FPS of Radeon HD 7770M in The Witcher 3: Wild Hunt is 80% more, than GeForce 840A. | ||
| low / 768p | 70−75 | 90−95 |
| medium / 768p | 35−40 | 50−55 |
| ultra / 1080p | 16−18 | 24−27 |
| high / 768p | 30−35 | 40−45 |
| The average gaming FPS of Radeon HD 7770M in World of Tanks is 35% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | Radeon HD 7770M | |
| Architecture | Maxwell | GCN |
| Code name | GM108 | Chelsea XT |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 24 April 2012 |
| Pipelines | 384 | 512 |
| 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 | 21.60 |
| Floating-point performance | 863.2 gflops | 691.2 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 | medium sized | |
| Check Price |