ATI Mobility Radeon HD 3870 X2
The Mobility Radeon X3870 X2 or CF combines two Mobility Radeon 3870 graphics cards (on MXM boards) in crossfire mode in one laptop. Therefore, the combination has a power consumption of both cards combined. The memory amount still only counts as much as one card has, as each card has to store the same information in it.
The performance is about 0-40% above a single HD 3870 and lies a bit above the GeForce 8800M GTX SLI solution. DirectX 9 games run in high resolution and details fluently. Demanding DX 10 games like Crysis or GTA IV only in medium to high details and low resolution.
As all multi-GPU solutions, the HD 3870 X2 may suffer from micro stuttering (at around 30fps the playback of games still stutters because of different frametimes).
As a single HD 3870, the X2 combination also features Avivo HD to help the CPU decode HD videos.
The power consumption of the combination can be up to 110 Watt alon (as AMD specifies the HD 3800 series with 33-55 Watt per card).
| Manufacturer | ATI |
| Series | Mobility Radeon HD 3800 |
| Codename | M88-XT CF |
| Pipelines | 640 - unified |
| Core Speed * | 660 MHz |
| Shader Speed * | 660 MHz |
| Memory Speed * | 850 MHz |
| Memory Bus Width | 256 Bit |
| Memory Type | GDDR3 |
| Max. Amount of Memory | |
| Shared Memory | no |
| DirectX | DirectX 10.1, Shader 4.0 |
| Current Consumption | 110 Watt |
| Transistors | 1332 Million |
| technology | 55 nm |
| Notebook Size | large |
| Date of Announcement | 01.09.2008 |
| Link to Manufacturer Page |
benchmarks
3DMark 2001: - Standard 1024x768
0% 
100%
min: 35136, avg: 37543, max: 39949 Points ... More Details
3DMark 03: - Standard 1024x768
0% 100%
min: 53261, avg: 55111, max: 56330 Points ... More Details
3DMark 05: - Standard 1024x768
0% 100%
min: 17271, avg: 19187, max: 20175 Points ... More Details
3DMark 06:
0% 100%
min: 11290, avg: 13435, max: 14820 Points ... More Details
Cinebench R10: - Shading
0% 100%
min: 4357, avg: 4357, max: 4357 Points ... More Details
3DMark Vantage: - P Result 1280x1024
0% 100%
min: 6625, avg: 6895, max: 7164 Points ... More Details
- Range of benchmark values for this graphics card - Average benchmark values for this graphics cardBased on 15 benchmarks
| 3DMark 05 in comparison | ||
| Intel Graphics Media Accelerator (GMA) 500 (min) | 137 | |
| ... | ||
| NVIDIA GeForce 8800M GTX SLI | 16942 | |
| ATI FirePro M7740 | 17192 | |
| NVIDIA GeForce GTX 280M | 18343 | |
| ATI Mobility Radeon HD 3870 X2 | 19187 | |
| NVIDIA GeForce GTX 280M SLI | 19268 | |
| ... | ||
| NVIDIA GeForce GTX 280M SLI (max) | 19268 | |
Game Benchmarks
For more games that might be playable and a list of all games and graphics cards visit our Gaming List
Notebook reviews with ATI Mobility Radeon HD 3870 X2 graphics card
Alienware M17 (Intel Core 2 Extreme QX9300, 17.1")
» Review Alienware M17 Gaming Notebook - Review
» Alienware M17 - External Review
mySN CXG7 (Intel Core 2 Extreme X9100, 17.0")
» Schenker MySN CXG7 - External Review
