ATI Mobility Radeon HD 3870 X2: specs and benchmarks

ATI Mobility Radeon HD 3870 X2

Summary

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 512 MB 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 12.11 percent of a leader's which is NVIDIA TITAN V.

General info

Of Mobility Radeon HD 3870 X2's architecture, market type and release date.
Place in performance rating
 
Architecture
TeraScale 2
 
Code name
M88
 
Type
Laptop
 
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.
Pipelines
2x 320
 
of 8192 (Radeon Pro Duo)
Core clock speed
660 MHz
 
Transistor count
666 million
 
of 21100
Manufacturing process technology
55 nm
 
Power consumption (TDP)
110 Watt
 
of 900 (Tesla S2050)
Texture fill rate
2x 10.56 GTexel / s billion / sec
 
of 512 (Radeon Pro Duo)
Floating-point performance
2x 422.4 gflops
 
of 16384 (Radeon Pro Duo)

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
large
 
Interface
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
GDDR3
 
Maximum RAM amount
2x 512 MB
 
of 32
Memory bus width
2x 256 Bit
 
of 8192 (Radeon Pro Duo)
Memory clock speed
1700 MHz
 
of 14000
Memory bandwidth
2x 54.4 GB / s
 
of 1024 (Radeon Pro Duo)
Shared memory
-
 

API support

APIs supported by Mobility Radeon HD 3870 X2, sometimes including their particular versions.
DirectX
10.1
 
OpenGL
3.3
 
of 4.6

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
12.21
 
 
3DMark Vantage Performance
6895
 

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
n/d
 
 
Games benchmarked by notebookcheck.net
Crysis - CPU Benchmark (2007)
low / 768p
84
 
medium / 768p
37
 
high / 768p
30
 
Crysis - GPU Benchmark (2007)
low / 768p
68
 
medium / 768p
37
 
high / 768p
31
 

Relative perfomance

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

NVIDIA equivalent

We believe that the nearest equivalent to Mobility Radeon HD 3870 X2 from NVIDIA is GeForce GTX 485M, which is nearly equal in speed and lower by 1 position in our rating.

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Advices and comments

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