Mobility Radeon HD 3870 X2: specs and benchmarks
Aggregate performance score
Mobility Radeon HD 3870 X2 provides poor gaming and benchmark performance at 2.16% of a leader's which is GeForce RTX 5090.
Summary
ATI started Mobility Radeon HD 3870 X2 sales 1 September 2008. This is a TeraScale architecture notebook card based on 55 nm manufacturing process and primarily aimed at office use. 512 MB of GDDR3 memory clocked at 0.85 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 54.4 GB/s.
Compatibility-wise, this is a graphics card attached via PCIe 2.0 x16 interface. Power consumption is at 110 Watt.
Primary details
Some basic facts about Mobility Radeon HD 3870 X2: architecture, market segment, release date etc.
| Place in the ranking | 861 | |
| Place by popularity | not in top-100 | |
| Power efficiency | 1.42 | of 100.00 (Radeon 890M) |
| Architecture | TeraScale (2005−2013) | |
| GPU code name | M88 | |
| Market segment | Laptop | |
| Release date | 1 September 2008 (16 years ago) |
Detailed specifications
Mobility Radeon HD 3870 X2's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Mobility Radeon HD 3870 X2's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 320 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 660 MHz | of 2670 MHz (Arc B580) |
| Number of transistors | 666 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 55 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 110 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 10.56 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 0.4224 TFLOPS | of 104.8 (GeForce RTX 5090) |
| ROPs | 16 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 16 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of Mobility Radeon HD 3870 X2 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Laptop size | large | |
| Interface | PCIe 2.0 x16 |
VRAM capacity and type
Parameters of memory installed on Mobility Radeon HD 3870 X2: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR3 | |
| Maximum RAM amount | 512 MB | of 288 GB (Radeon Instinct MI325X) |
| Memory bus width | 256 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 850 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 54.4 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
| Shared memory | - |
Connectivity and outputs
Types and number of video connectors present on Mobility Radeon HD 3870 X2. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | No outputs |
API compatibility
APIs supported by Mobility Radeon HD 3870 X2, sometimes including their particular versions.
| DirectX | 10.1 (10_1) | |
| Shader Model | 4.1 | |
| OpenGL | 3.3 | of 4.6 (GeForce RTX 5090) |
| OpenCL | N/A | |
| Vulkan | N/A |
Benchmark performance
Synthetic benchmark performance of Mobility Radeon HD 3870 X2. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Send your test results of Mobility Radeon HD 3870 X2.
Gaming performance
Let's see how good Mobility Radeon HD 3870 X2 is for gaming. Particular gaming benchmark results are measured in frames per second. Comparisons with game system requirements are included, but remember that sometimes official requirements may reflect reality inaccurately.
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 8−9 | |
| Cyberpunk 2077 | 6−7 |
Full HD
Medium Preset
| Battlefield 5 | 5−6 | |
| Counter-Strike 2 | 8−9 | |
| Cyberpunk 2077 | 6−7 | |
| Forza Horizon 4 | 12−14 | |
| Forza Horizon 5 | 0−1 | |
| Metro Exodus | 3−4 | |
| Red Dead Redemption 2 | 9−10 |
Full HD
High Preset
| Battlefield 5 | 5−6 | |
| Counter-Strike 2 | 8−9 | |
| Cyberpunk 2077 | 6−7 | |
| Dota 2 | 5−6 | |
| Far Cry 5 | 14−16 | |
| Fortnite | 12−14 | |
| Forza Horizon 4 | 12−14 | |
| Forza Horizon 5 | 0−1 | |
| Grand Theft Auto V | 5−6 | |
| Metro Exodus | 3−4 | |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24 | |
| Red Dead Redemption 2 | 9−10 | |
| The Witcher 3: Wild Hunt | 9−10 | |
| World of Tanks | 40−45 |
Full HD
Ultra Preset
| Battlefield 5 | 5−6 | |
| Counter-Strike 2 | 8−9 | |
| Cyberpunk 2077 | 6−7 | |
| Dota 2 | 5−6 | |
| Far Cry 5 | 14−16 | |
| Forza Horizon 4 | 12−14 | |
| Forza Horizon 5 | 0−1 | |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 21−24 |
1440p
High Preset
| Dota 2 | 0−1 | |
| Grand Theft Auto V | 1−2 | |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 14−16 | |
| Red Dead Redemption 2 | 1−2 | |
| World of Tanks | 14−16 |
1440p
Ultra Preset
| Battlefield 5 | 1−2 | |
| Cyberpunk 2077 | 4−5 | |
| Far Cry 5 | 6−7 | |
| Forza Horizon 5 | 2−3 | |
| The Witcher 3: Wild Hunt | 5−6 | |
| Valorant | 8−9 |
4K
High Preset
| Counter-Strike 2 | 10−11 | |
| Dota 2 | 16−18 | |
| Grand Theft Auto V | 14−16 | |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 6−7 | |
| Red Dead Redemption 2 | 1−2 | |
| The Witcher 3: Wild Hunt | 14−16 |
4K
Ultra Preset
| Battlefield 5 | 2−3 | |
| Counter-Strike 2 | 10−11 | |
| Cyberpunk 2077 | 2−3 | |
| Dota 2 | 16−18 | |
| Far Cry 5 | 2−3 | |
| Fortnite | 1−2 | |
| Forza Horizon 5 | 0−1 | |
| Valorant | 2−3 |
NVIDIA equivalent
According to our data, the closest NVIDIA alternative to Mobility Radeon HD 3870 X2 is GeForce 920A, which is slower by 4% and lower by 5 positions in our ranking.
Here are some closest NVIDIA rivals to Mobility Radeon HD 3870 X2:
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with Mobility Radeon HD 3870 X2 according to our statistics.
