GeForce 840A vs Radeon R7 Carrizo
When choosing between GeForce 840A and Radeon R7 Carrizo, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 840A and Radeon R7 Carrizo.
GeForce 840A
Radeon R7 Carrizo is a Laptop Graphics Card
Note: Radeon R7 Carrizo 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 R7 Carrizo here:
Main Specs
| GeForce 840A | Radeon R7 Carrizo | |
| Power consumption (TDP) | 33 Watt | 12-35 Watt |
| Interface | PCIe 3.0 x8 | |
| Memory type | DDR3 | |
| Maximum RAM amount | 2 GB | |
| Display Connectors | No outputs | |
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- GeForce 840A has 175% more power consumption, than Radeon R7 Carrizo.
- GeForce 840A is used in Desktops, and Radeon R7 Carrizo - in Laptops.
- GeForce 840A is build with Maxwell architecture, and Radeon R7 Carrizo - with GCN 1.2/2.0.
- GeForce 840A and Radeon R7 Carrizo are manufactured by 28 nm process technology.
Game benchmarks
| high / 1080p | 3−4 | 2−3 |
| ultra / 1080p | 2−3 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 12−14 |
| medium / 1080p | 5−6 | 5−6 |
| The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 14% more, than Radeon R7 Carrizo. | ||
| high / 1080p | − | 6−7 |
| ultra / 1080p | 7−8 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 16−18 |
| medium / 1080p | 8−9 | 7−8 |
| The average gaming FPS of GeForce 840A in Battlefield 5 is 10% more, than Radeon R7 Carrizo. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 30−35 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of Radeon R7 Carrizo in Call of Duty: Warzone is 12% more, than GeForce 840A. | ||
| low / 768p | 120−130 | 110−120 |
| medium / 768p | 90−95 | 90−95 |
| ultra / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 24−27 | 24−27 |
| 4K / 2160p | 18−20 | − |
| high / 768p | 65−70 | 65−70 |
| The average gaming FPS of GeForce 840A in Counter-Strike: Global Offensive is 2% more, than Radeon R7 Carrizo. | ||
| low / 768p | 80−85 | 70−75 |
| ultra / 1080p | 14−16 | 18−20 |
| medium / 1080p | 40−45 | 40−45 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 4% more, than Radeon R7 Carrizo. | ||
| low / 768p | 75−80 | 70−75 |
| medium / 768p | 50−55 | 50−55 |
| ultra / 1080p | 27−30 | 27−30 |
| The average gaming FPS of GeForce 840A in Dota 2 is 1% more, than Radeon R7 Carrizo. | ||
| high / 1080p | 5−6 | 3−4 |
| ultra / 1080p | − | 3−4 |
| 4K / 2160p | 2−3 | 0−1 |
| low / 720p | 14−16 | 14−16 |
| medium / 1080p | 6−7 | 5−6 |
| The average gaming FPS of GeForce 840A in Far Cry 5 is 12% more, than Radeon R7 Carrizo. | ||
| high / 1080p | 12−14 | 10−12 |
| ultra / 1080p | 7−8 | 6−7 |
| QHD / 1440p | − | 4−5 |
| low / 720p | 50−55 | 55−60 |
| medium / 1080p | 14−16 | 12−14 |
| GeForce 840A and Radeon R7 Carrizo have the same average FPS in Fortnite. | ||
| high / 1080p | 7−8 | 7−8 |
| ultra / 1080p | − | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 20−22 | 20−22 |
| medium / 1080p | 9−10 | 10−11 |
| The average gaming FPS of Radeon R7 Carrizo in Forza Horizon 4 is 8% more, than GeForce 840A. | ||
| low / 768p | 45−50 | 45−50 |
| high / 1080p | 8−9 | 7−8 |
| ultra / 1080p | 5−6 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | 35−40 |
| The average gaming FPS of GeForce 840A in Grand Theft Auto V is 8% more, than Radeon R7 Carrizo. | ||
| high / 1080p | 3−4 | 1−2 |
| ultra / 1080p | 1−2 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 8−9 | 6−7 |
| medium / 1080p | 4−5 | 3−4 |
| The average gaming FPS of GeForce 840A in Metro Exodus is 66% more, than Radeon R7 Carrizo. | ||
| low / 768p | 85−90 | 85−90 |
| high / 1080p | 85−90 | 65−70 |
| ultra / 1080p | 80−85 | − |
| medium / 1080p | 85−90 | − |
| The average gaming FPS of GeForce 840A in Minecraft is 12% more, than Radeon R7 Carrizo. | ||
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 27−30 | 27−30 |
| medium / 1080p | 14−16 | 14−16 |
| GeForce 840A and Radeon R7 Carrizo have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| ultra / 1080p | 7−8 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 8−9 | 6−7 |
| The average gaming FPS of GeForce 840A in Red Dead Redemption 2 is 60% more, than Radeon R7 Carrizo. | ||
| low / 768p | 16−18 | 14−16 |
| medium / 768p | 12−14 | 10−12 |
| high / 1080p | 6−7 | 5−6 |
| ultra / 1080p | 5−6 | 4−5 |
| 4K / 2160p | − | 0−1 |
| The average gaming FPS of GeForce 840A in The Witcher 3: Wild Hunt is 11% more, than Radeon R7 Carrizo. | ||
| low / 768p | 70−75 | 70−75 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 16−18 | 14−16 |
| high / 768p | 30−35 | 27−30 |
| The average gaming FPS of GeForce 840A in World of Tanks is 2% more, than Radeon R7 Carrizo. | ||
Full Specs
| GeForce 840A | Radeon R7 Carrizo | |
| Architecture | Maxwell | GCN 1.2/2.0 |
| Code name | GM108 | Carrizo |
| Type | Desktop | Laptop |
| Release date | 17 March 2014 | 4 June 2015 |
| Pipelines | 384 | 512 |
| Core clock speed | 1029 MHz | |
| Boost Clock | 1124 MHz | 800 MHz |
| Transistor count | 2410 Million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | |
| Floating-point performance | 863.2 gflops | |
| Memory bus width | 64 Bit | 64/128 Bit |
| Memory clock speed | 2002 MHz | |
| Memory bandwidth | 16.02 GB/s | |
| Shared memory | + | |
| DirectX | 12 (11_0) | DirectX 12 (FL 12_0) |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.2 | |
| Vulkan | 1.1.126 | |
| CUDA | 5.0 | |
| Laptop size | medium sized | |
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