GeForce GTX 850A vs Mobility Radeon HD 3870 X2
If you are going to buy a new graphics card and are choosing between GeForce GTX 850A and Mobility Radeon HD 3870 X2, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 850A stacks up against Mobility Radeon HD 3870 X2, check out specs charts below.
GeForce GTX 850A
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Mobility Radeon HD 3870 X2 is a Laptop Graphics Card
Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 here:
Main Specs
GeForce GTX 850A | Mobility Radeon HD 3870 X2 | |
Power consumption (TDP) | 45 Watt | 110 Watt |
Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
Memory type | DDR3 | GDDR3 |
Maximum RAM amount | 2 GB | 512 MB |
Display Connectors | No outputs | No outputs |
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- Mobility Radeon HD 3870 X2 has 144% more power consumption, than GeForce GTX 850A.
- GeForce GTX 850A is connected by PCIe 3.0 x16, and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
- Mobility Radeon HD 3870 X2 has 510 GB more memory, than GeForce GTX 850A.
- GeForce GTX 850A is used in Desktops, and Mobility Radeon HD 3870 X2 - in Laptops.
- GeForce GTX 850A is build with Maxwell architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
- Core clock speed of GeForce GTX 850A is 242 MHz higher, than Mobility Radeon HD 3870 X2.
- GeForce GTX 850A is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
- Memory clock speed of GeForce GTX 850A is 950 MHz higher, than Mobility Radeon HD 3870 X2.
Game benchmarks
high / 1080p | 1−2 | 6−7 |
ultra / 1080p | 0−1 | 4−5 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 12−14 | 16−18 |
medium / 1080p | 3−4 | 8−9 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 66% more, than GeForce GTX 850A. | ||
high / 1080p | − | 12−14 |
ultra / 1080p | 4−5 | 10−11 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 16−18 | 24−27 |
medium / 1080p | 5−6 | 12−14 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Battlefield 5 is 77% more, than GeForce GTX 850A. | ||
low / 768p | 45−50 | 45−50 |
high / 1080p | 40−45 | 45−50 |
QHD / 1440p | 0−1 | 0−1 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Call of Duty: Warzone is 4% more, than GeForce GTX 850A. | ||
low / 768p | 120−130 | 130−140 |
medium / 768p | 90−95 | 110−120 |
ultra / 1080p | 40−45 | 50−55 |
QHD / 1440p | 24−27 | 27−30 |
4K / 2160p | 18−20 | 27−30 |
high / 768p | 65−70 | 80−85 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Counter-Strike: Global Offensive is 17% more, than GeForce GTX 850A. | ||
low / 768p | 85−90 | 55−60 |
ultra / 1080p | 16−18 | 18−20 |
medium / 1080p | 40−45 | 45−50 |
The average gaming FPS of GeForce GTX 850A in Cyberpunk 2077 is 19% more, than Mobility Radeon HD 3870 X2. | ||
low / 768p | 75−80 | 80−85 |
medium / 768p | 50−55 | 55−60 |
ultra / 1080p | 24−27 | 30−35 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Dota 2 is 11% more, than GeForce GTX 850A. | ||
high / 1080p | 2−3 | 8−9 |
ultra / 1080p | 2−3 | 7−8 |
4K / 2160p | 0−1 | 3−4 |
low / 720p | 12−14 | 18−20 |
medium / 1080p | 3−4 | 8−9 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Far Cry 5 is 100% more, than GeForce GTX 850A. | ||
high / 1080p | 10−11 | 14−16 |
ultra / 1080p | 5−6 | 10−11 |
QHD / 1440p | 2−3 | − |
low / 720p | 50−55 | 60−65 |
medium / 1080p | 10−12 | 21−24 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Fortnite is 42% more, than GeForce GTX 850A. | ||
high / 1080p | 4−5 | 12−14 |
ultra / 1080p | − | 10−12 |
QHD / 1440p | 0−1 | 1−2 |
low / 720p | 16−18 | 24−27 |
medium / 1080p | 7−8 | 14−16 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Forza Horizon 4 is 88% more, than GeForce GTX 850A. | ||
low / 768p | 45−50 | 50−55 |
medium / 768p | − | 45−50 |
high / 1080p | 5−6 | 12−14 |
ultra / 1080p | 2−3 | 6−7 |
QHD / 1440p | 0−1 | 0−1 |
medium / 720p | 35−40 | − |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Grand Theft Auto V is 33% more, than GeForce GTX 850A. | ||
high / 1080p | 1−2 | 4−5 |
ultra / 1080p | 0−1 | 3−4 |
4K / 2160p | 0−1 | 0−1 |
low / 720p | 5−6 | 12−14 |
medium / 1080p | 3−4 | 6−7 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Metro Exodus is 166% more, than GeForce GTX 850A. | ||
low / 768p | 90−95 | 95−100 |
high / 1080p | 85−90 | 85−90 |
ultra / 1080p | 70−75 | 80−85 |
medium / 1080p | 90−95 | 90−95 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Minecraft is 4% more, than GeForce GTX 850A. | ||
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 Mobility Radeon HD 3870 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce GTX 850A. | ||
ultra / 1080p | 4−5 | 7−8 |
QHD / 1440p | 0−1 | 0−1 |
low / 720p | 6−7 | 12−14 |
medium / 1080p | − | 10−12 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in Red Dead Redemption 2 is 100% more, than GeForce GTX 850A. | ||
low / 768p | 12−14 | 24−27 |
medium / 768p | 9−10 | 16−18 |
high / 1080p | 4−5 | 9−10 |
ultra / 1080p | 3−4 | 6−7 |
4K / 2160p | 0−1 | 6−7 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in The Witcher 3: Wild Hunt is 100% more, than GeForce GTX 850A. | ||
low / 768p | 75−80 | 85−90 |
medium / 768p | 35−40 | 45−50 |
ultra / 1080p | 16−18 | 18−20 |
high / 768p | 30−35 | 35−40 |
The average gaming FPS of Mobility Radeon HD 3870 X2 in World of Tanks is 14% more, than GeForce GTX 850A. |
Full Specs
GeForce GTX 850A | Mobility Radeon HD 3870 X2 | |
Architecture | Maxwell | RV6xx |
Code name | GM107 | M88-XT CF |
Type | Desktop | Laptop |
Release date | 17 March 2014 | 1 September 2008 |
Pipelines | 640 | 640 |
Core clock speed | 902 MHz | 660 MHz |
Boost Clock | 936 MHz | |
Transistor count | 1,870 million | 666 million |
Manufacturing process technology | 28 nm | 55 nm |
Texture fill rate | 37.44 | 10.56 |
Floating-point performance | 1,198 gflops | 2x 422.4 gflops |
Memory bus width | 128 Bit | 256 Bit |
Memory clock speed | 1800 MHz | 850 MHz |
Memory bandwidth | 28.8 GB/s | 54.4 GB/s |
Shared memory | - | |
DirectX | 12 (11_0) | 10.1 (10_1) |
Shader Model | 5.1 | 4.1 |
OpenGL | 4.6 | 3.3 |
OpenCL | 1.2 | N/A |
Vulkan | 1.1.126 | N/A |
CUDA | 5.0 | |
Laptop size | large | |
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