ATI Mobility Radeon HD 3870 X2: specs and benchmarks

ATI Mobility Radeon HD 3870 X2


ATI started Mobility Radeon HD 3870 X2 sales 1 September 2008. This is TeraScale 2 architecture notebook card based on 55 nm manufacturing process and primarily aimed at gamers. 2x 0.5 GB of GDDR3 memory clocked at 1.7 GHz are supplied, and together with 2x 256 Bit memory interface this creates a bandwidth of 2x 54.4 GB/s.

Compatibility-wise, this is card attached via PCIe 2.0 x16 interface. Power consumption is at 110 Watt.

It provides poor gaming and benchmark performance at 6.08 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of Mobility Radeon HD 3870 X2's architecture, market type and release date.
Place in performance rating
TeraScale 2
Code name
Release date
1 September 2008

Technical specs

Mobility Radeon HD 3870 X2's general performance parameters such as number of shaders, GPU core 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.
2x 320
of 8192 (FirePro S9300 X2)
Core clock speed
660 MHz
Transistor count
666 million
of 21100
Manufacturing process technology
55 nm
of 12
Power consumption (TDP)
110 Watt
of 900 (Tesla S2050)
Texture fill rate
2x 10.56 billion/sec
of 20896 (Tesla M10)
Floating-point performance
2x 422.4 gflops

Compatibility, dimensions and requirements

Information on Mobility Radeon HD 3870 X2's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
Laptop size
PCIe 2.0 x16

Memory specs

Parameters of memory installed on Mobility Radeon HD 3870 X2: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
Maximum RAM amount
2x 0.5 GB
of 32 (Tesla M10)
Memory bus width
2x 256 Bit
of 8192 (FirePro S9300 X2)
Memory clock speed
1700 MHz
Memory bandwidth
2x 54.4 GB/s
of 11404 (GRID K1)
Shared memory

API support

APIs supported by Mobility Radeon HD 3870 X2, sometimes including their particular versions.
DirectX 10.1, Shader 4.0

Video card benchmarks performance

Non-gaming benchmarks performance of Mobility Radeon HD 3870 X2. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
3DMark Vantage Performance

Game benchmarks (in FPS)

Let's see how good Mobility Radeon HD 3870 X2 is for gaming. Particular gaming benchmark results are measured in FPS, while overall gaming performance is a number in 0-100 range, and the older the game, the less impact it has on the overall grade.
Overall gaming performance
Games benchmarked by
Crysis - CPU Benchmark (2007)
low / 768p
medium / 768p
high / 768p
Crysis - GPU Benchmark (2007)
low / 768p
medium / 768p
high / 768p

Relative perfomance

Overall Mobility Radeon HD 3870 X2 performance compared to its nearest competitors. All GPU types participate.

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Compare GPUs

Compare Mobility Radeon HD 3870 X2 with others

Other GPUs

Advices and comments

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