ATI Mobility Radeon HD 3870 vs GeForce GTX 850M
Aggregate performance score
We've compared GeForce GTX 850M and Mobility Radeon HD 3870, covering specs and all relevant benchmarks.
850M outperforms Mobility HD 3870 by a whopping 390% 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 | 637 | 1087 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 10.39 | 1.74 |
| Architecture | Maxwell (2014−2017) | TeraScale (2005−2013) |
| GPU code name | GM107 | M88 |
| Market segment | Laptop | Laptop |
| Release date | 12 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 | Up to 936 MHz | 660 MHz |
| 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 | 36.08 | 10.56 |
| Floating-point processing power | 1.155 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 | medium sized | large |
| Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| SLI options | + | - |
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 |
| Standard memory configuration | DDR3 or GDDR5 | no data |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | Up to 2500 MHz | 850 MHz |
| Memory bandwidth | 80.0 GB/s | 54.4 GB/s |
| Shared memory | - | - |
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 |
| eDP 1.2 signal support | Up to 3840x2160 | no data |
| LVDS signal support | Up to 1920x1200 | no data |
| VGA аnalog display support | Up to 2048x1536 | no data |
| DisplayPort Multimode (DP++) support | Up to 3840x2160 | no data |
| HDMI | + | - |
| HDCP content protection | + | - |
| 7.1 channel HD audio on HDMI | + | - |
| TrueHD and DTS-HD audio bitstreaming | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| H.264, VC1, MPEG2 1080p video decoder | + | - |
| Optimus | + | - |
| Ansel | + | - |
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 | 4.5 | 3.3 |
| OpenCL | 1.1 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | - |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
3DMark Vantage Performance
3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| 900p | 84
+425%
| 16−18
−425%
|
| Full HD | 32
+433%
| 6−7
−433%
|
| 4K | 10
+400%
| 2−3
−400%
|
FPS performance in popular games
Full HD
Low
| Counter-Strike 2 | 30−33
+400%
|
6−7
−400%
|
| Cyberpunk 2077 | 12−14
+300%
|
3−4
−300%
|
| Resident Evil 4 Remake | 10−11 | 0−1 |
Full HD
Medium
| Battlefield 5 | 24−27
+2500%
|
1−2
−2500%
|
| Counter-Strike 2 | 30−33
+400%
|
6−7
−400%
|
| Cyberpunk 2077 | 12−14
+300%
|
3−4
−300%
|
| Far Cry 5 | 18−20
+850%
|
2−3
−850%
|
| Fortnite | 35−40
+1133%
|
3−4
−1133%
|
| Forza Horizon 4 | 27−30
+250%
|
8−9
−250%
|
| Forza Horizon 5 | 18−20
+1700%
|
1−2
−1700%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24
+156%
|
9−10
−156%
|
| Valorant | 70−75
+112%
|
30−35
−112%
|
Full HD
High
| Battlefield 5 | 24−27
+2500%
|
1−2
−2500%
|
| Counter-Strike 2 | 30−33
+400%
|
6−7
−400%
|
| Counter-Strike: Global Offensive | 99
+241%
|
27−30
−241%
|
| Cyberpunk 2077 | 12−14
+300%
|
3−4
−300%
|
| Dota 2 | 50−55
+213%
|
16−18
−213%
|
| Far Cry 5 | 18−20
+850%
|
2−3
−850%
|
| Fortnite | 35−40
+1133%
|
3−4
−1133%
|
| Forza Horizon 4 | 27−30
+250%
|
8−9
−250%
|
| Forza Horizon 5 | 18−20
+1700%
|
1−2
−1700%
|
| Grand Theft Auto V | 20 | 0−1 |
| Metro Exodus | 12−14
+500%
|
2−3
−500%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24
+156%
|
9−10
−156%
|
| The Witcher 3: Wild Hunt | 21
+200%
|
7−8
−200%
|
| Valorant | 70−75
+112%
|
30−35
−112%
|
Full HD
Ultra
| Battlefield 5 | 24−27
+2500%
|
1−2
−2500%
|
| Cyberpunk 2077 | 12−14
+300%
|
3−4
−300%
|
| Dota 2 | 50−55
+213%
|
16−18
−213%
|
| Far Cry 5 | 18−20
+850%
|
2−3
−850%
|
| Forza Horizon 4 | 27−30
+250%
|
8−9
−250%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24
+156%
|
9−10
−156%
|
| The Witcher 3: Wild Hunt | 11
+57.1%
|
7−8
−57.1%
|
| Valorant | 70−75
+112%
|
30−35
−112%
|
Full HD
Epic
| Fortnite | 35−40
+1133%
|
3−4
−1133%
|
1440p
High
| Counter-Strike 2 | 12−14
+200%
|
4−5
−200%
|
| Counter-Strike: Global Offensive | 45−50
+488%
|
8−9
−488%
|
| Grand Theft Auto V | 6−7
+500%
|
1−2
−500%
|
| Metro Exodus | 5−6
+400%
|
1−2
−400%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 35−40
+200%
|
12−14
−200%
|
| Valorant | 65−70
+2167%
|
3−4
−2167%
|
1440p
Ultra
| Battlefield 5 | 10−11
+400%
|
2−3
−400%
|
| Cyberpunk 2077 | 5−6 | 0−1 |
| Far Cry 5 | 12−14
+1100%
|
1−2
−1100%
|
| Forza Horizon 4 | 14−16
+400%
|
3−4
−400%
|
| The Witcher 3: Wild Hunt | 9−10
+350%
|
2−3
−350%
|
1440p
Epic
| Fortnite | 12−14
+500%
|
2−3
−500%
|
4K
High
| Grand Theft Auto V | 16−18
+21.4%
|
14−16
−21.4%
|
| Metro Exodus | 1−2 | 0−1 |
| The Witcher 3: Wild Hunt | 4−5 | 0−1 |
| Valorant | 30−35
+417%
|
6−7
−417%
|
4K
Ultra
| Battlefield 5 | 5−6
+400%
|
1−2
−400%
|
| Cyberpunk 2077 | 2−3 | 0−1 |
| Dota 2 | 21−24
+2100%
|
1−2
−2100%
|
| Far Cry 5 | 5−6
+400%
|
1−2
−400%
|
| Forza Horizon 4 | 9−10
+800%
|
1−2
−800%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 6−7
+200%
|
2−3
−200%
|
4K
Epic
| Fortnite | 6−7
+200%
|
2−3
−200%
|
This is how GTX 850M and ATI Mobility HD 3870 compete in popular games:
- GTX 850M is 425% faster in 900p
- GTX 850M is 433% faster in 1080p
- GTX 850M is 400% faster in 4K
Here's the range of performance differences observed across popular games:
- in Battlefield 5, with 1080p resolution and the Medium Preset, the GTX 850M is 2500% faster.
All in all, in popular games:
- Without exception, GTX 850M surpassed ATI Mobility HD 3870 in all 43 of our tests.
Pros & cons summary
| Performance score | 6.07 | 1.24 |
| Recency | 12 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 850M has a 390% higher aggregate performance score, an age advantage of 5 years, a 300% higher maximum VRAM amount, a 96% more advanced lithography process, and 22% lower power consumption.
The GeForce GTX 850M is our recommended choice as it beats the Mobility Radeon HD 3870 in performance tests.
Other comparisons
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