ATI Mobility Radeon HD 3870 vs GeForce GTX 850A
Aggregate performance score
We've compared GeForce GTX 850A and Mobility Radeon HD 3870, covering specs and all relevant benchmarks.
850A outperforms Mobility HD 3870 by a considerable 48% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 965 | 1087 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 3.13 | 1.74 |
| Architecture | Maxwell (2014−2017) | TeraScale (2005−2013) |
| GPU code name | GM107 | M88 |
| Market segment | Laptop | Laptop |
| Release date | 17 March 2014 (12 years ago) | 4 June 2008 (17 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 640 | 320 |
| Core clock speed | 902 MHz | 660 MHz |
| Boost clock speed | 936 MHz | no data |
| Number of transistors | 1,870 million | 666 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Power consumption (TDP) | 45 Watt | 55 Watt |
| Texture fill rate | 37.44 | 10.56 |
| Floating-point processing power | 1.198 TFLOPS | 0.4224 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 40 | 16 |
| L1 Cache | 320 KB | no data |
| L2 Cache | 2 MB | 256 KB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Laptop size | no data | large |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | DDR3 | GDDR3 |
| Maximum RAM amount | 2 GB | 512 MB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 900 MHz | 850 MHz |
| Memory bandwidth | 28.8 GB/s | 54.4 GB/s |
| Shared memory | no data | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| 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 | - |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
FPS performance in popular games
Full HD
Low
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Resident Evil 4 Remake | 0−1 | 0−1 |
Full HD
Medium
| Battlefield 5 | 1−2
+0%
|
1−2
+0%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Far Cry 5 | 2−3
+0%
|
2−3
+0%
|
| Fortnite | 3−4
+0%
|
3−4
+0%
|
| Forza Horizon 4 | 8−9
+0%
|
8−9
+0%
|
| Forza Horizon 5 | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+0%
|
9−10
+0%
|
| Valorant | 30−35
+0%
|
30−35
+0%
|
Full HD
High
| Battlefield 5 | 1−2
+0%
|
1−2
+0%
|
| Counter-Strike: Global Offensive | 27−30
+0%
|
27−30
+0%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Dota 2 | 16−18
+0%
|
16−18
+0%
|
| Far Cry 5 | 2−3
+0%
|
2−3
+0%
|
| Fortnite | 3−4
+0%
|
3−4
+0%
|
| Forza Horizon 4 | 8−9
+0%
|
8−9
+0%
|
| Forza Horizon 5 | 1−2
+0%
|
1−2
+0%
|
| Grand Theft Auto V | 0−1 | 0−1 |
| Metro Exodus | 2−3
+0%
|
2−3
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+0%
|
9−10
+0%
|
| The Witcher 3: Wild Hunt | 7−8
+0%
|
7−8
+0%
|
| Valorant | 30−35
+0%
|
30−35
+0%
|
Full HD
Ultra
| Battlefield 5 | 1−2
+0%
|
1−2
+0%
|
| Cyberpunk 2077 | 3−4
+0%
|
3−4
+0%
|
| Dota 2 | 16−18
+0%
|
16−18
+0%
|
| Far Cry 5 | 2−3
+0%
|
2−3
+0%
|
| Forza Horizon 4 | 8−9
+0%
|
8−9
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 9−10
+0%
|
9−10
+0%
|
| The Witcher 3: Wild Hunt | 7−8
+0%
|
7−8
+0%
|
| Valorant | 30−35
+0%
|
30−35
+0%
|
Full HD
Epic
| Fortnite | 3−4
+0%
|
3−4
+0%
|
1440p
High
| Counter-Strike 2 | 4−5
+0%
|
4−5
+0%
|
| Counter-Strike: Global Offensive | 8−9
+0%
|
8−9
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 12−14
+0%
|
12−14
+0%
|
| Valorant | 3−4
+0%
|
3−4
+0%
|
1440p
Ultra
| Cyberpunk 2077 | 0−1 | 0−1 |
| Far Cry 5 | 1−2
+0%
|
1−2
+0%
|
| Forza Horizon 4 | 3−4
+0%
|
3−4
+0%
|
| The Witcher 3: Wild Hunt | 2−3
+0%
|
2−3
+0%
|
1440p
Epic
| Fortnite | 2−3
+0%
|
2−3
+0%
|
4K
High
| Grand Theft Auto V | 14−16
+0%
|
14−16
+0%
|
| Valorant | 6−7
+0%
|
6−7
+0%
|
4K
Ultra
| Dota 2 | 1−2
+0%
|
1−2
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 2−3
+0%
|
2−3
+0%
|
4K
Epic
| Fortnite | 2−3
+0%
|
2−3
+0%
|
All in all, in popular games:
- there's a draw in 43 tests (100%)
Pros & cons summary
| Performance score | 1.83 | 1.24 |
| Recency | 17 March 2014 | 4 June 2008 |
| Maximum RAM amount | 2 GB | 512 MB |
| Chip lithography | 28 nm | 55 nm |
| Power consumption (TDP) | 45 Watt | 55 Watt |
GTX 850A has a 47.6% higher aggregate performance score, an age advantage of 5 years, a 300% higher maximum VRAM amount, a 96.4% more advanced lithography process, and 22.2% lower power consumption.
The GeForce GTX 850A is our recommended choice as it beats the Mobility Radeon HD 3870 in performance tests.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
