ATI Mobility Radeon HD 3870

ATI Mobility Radeon HD 3870

The AMD ATI Mobility Radeon HD 3870 is a higher clocked Mobilty Radeon HD 3850 wich is also manufactured in 55 nm and features DirectX 10.1 support. The chip is compareable to the desktop HD 3850 and optimized for less power consumption.

The performance of the graphics card is similar to the 8800M GTS and should therefore be sufficient for DirectX 9 games in medium to high details (see games list beyond).

The RV670 chip has 64 5-dimensional unified shaders with 16 ROPs, 16 TMUs, and 32 TAUs.

The Avivo HD video engine helps the cpu in decoding HD videos (MPEG-2, H.264, VC-1). The HD 3870 houses the UVD+ (Unified Video Decoder) that is capable of decoding MPEG-2, H.265/AVC, and VC-1 nearly fully. The UVD2 in the HD 4000 generation is capable of full bitstream decoding and two video streams can be decoded at once (which UVD+ can not).

Compared to desktop graphics cards, the HD 3870 is similar to the Radeon HD 3850 (nealry similar clock speeds, same core).

The power consumption of the HD 3800 series lies between 35-55 Watt.

Mobility Radeon HD 3000 Series
Mobility Radeon HD 3870 320 @ 660 MHz256 Bit @ 850 MHz
Mobility Radeon HD 3470 Hybrid X2 80
Mobility Radeon HD 3470 40 @ 680 MHz64 Bit @ 800 MHz
Mobility Radeon HD 3450 40 @ 500 MHz64 Bit @ 700 MHz
Pipelines320 - unified
Core Speed *660 MHz
Memory Speed *850 MHz
Memory Bus Width256 Bit
Memory TypeGDDR3
Shared Memoryno
DirectXDirectX 10.1, Shader 4.1
Power Consumption55 Watt
Transistors666 Million
technology55 nm
Avivo HD, OpenGL 2.0, PowerPlay 7.0, PCI Express 2.0 x16, 512-bit internal ring bus
Notebook Sizelarge
Date of Announcement01.03.2008
Information55nm, Display Port with external transmitter
Link to Manufacturer Page
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.


3DMark 06
min: 8000     avg: 8600 (22%)     median: 8600 (22%)     max: 9200 Points
3DMark 05 - Standard 1024x768
min: 12769     avg: 12884.5 (35%)     median: 12884.5 (35%)     max: 13000 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.

Supreme Commander - FA Bench
high 1024x768
30.8  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
The Elder Scrolls IV - Oblivion
high 1280x800
64  fps      Compare
» With all tested laptops playable in detail settings high.


low 640x480
189  fps      Compare
high 1024x768
91  fps      Compare
» With all tested laptops playable in detail settings high.
Doom 3

Doom 3

low 640x480
125  fps      Compare
ultra 1024x768
117  fps      Compare
» With all tested laptops playable in detail settings ultra.

For more games that might be playable and a list of all games and graphics cards visit our Gaming List


#0 Did not recreate cache, as it is less than 5 days old! +0.001s ... 0.001s

#1 min, max, avg, median took s +0.116s ... 0.117s

#2 Before gaming benchmark output +0s ... 0.117s

#3 return log +0.063s ... 0.179s

Notebook reviews with ATI Mobility Radeon HD 3870 graphics card

Fujitsu-Siemens Amilo Sa 3650: AMD Turion X2 Ultra ZM-86, 13.3", 2.3 kg
  Review » Review FSC Amilo SA3650 Notebook + Amilo Graphic Booster

  External Review » Fujitsu-Siemens Amilo Sa3650

» Comparison of GPUs
Detailed list of all laptop GPUs sorted by class and performance.

» Benchmark List
Sort and restrict laptop GPUs based on performance in synthetic benchmarks.

» Notebook Gaming List
Playable games for each graphics card and their average FPS results.

Class 1
Radeon R9 390X
Radeon R9 380
GeForce GTX 590
GeForce GTX 580
Radeon HD 6970
GeForce GTX 570
Class 2
GeForce GTX 560 Ti
Radeon HD 5850
Radeon HD 7770
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
Radeon HD 5770
GeForce GTX 550 Ti
Radeon R9 M365X
FirePro W4100
Radeon HD 4850
Class 3
GeForce GTS 450
Radeon HD 5670
FirePro W2100
GeForce GT 240
GeForce GT 430
Class 4
Radeon HD 5570
GeForce GT 220
Radeon HD 6450 GDDR5
Mali-T880 MP4
Class 5
Radeon HD 4350
GeForce G 107M *
Chrome9HD *
Class 6
unknown *

* Approximate position of the graphics adapter

> Notebook / Laptop Reviews and News > Benchmarks / Tech > Comparison of Laptop Graphics Cards > ATI Mobility Radeon HD 3870
Author: Klaus Hinum (Update: 2016-01-26)