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ATI Mobility Radeon HD 3870 X2
- Graphics Processor
- M88 x2
- Cores
- 320 x2
- TMUs
- 16 x2
- ROPs
- 16 x2
- Memory Size
- 512 MB x2
- Memory Type
- GDDR3
- Bus Width
- 256 bit x2
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The Mobility Radeon HD 3870 X2 was a mobile graphics chip by ATI, launched on September 1st, 2008. Built on the 55 nm process, and based on the M88 graphics processor, in its M88 XT-L variant, the chip supports DirectX 10.1. Since Mobility Radeon HD 3870 X2 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. The M88 graphics processor is an average sized chip with a die area of 192 mm² and 666 million transistors. Mobility Radeon HD 3870 X2 combines two graphics processors to increase performance. It features 320 shading units, 16 texture mapping units, and 16 ROPs, per GPU. ATI has paired 1,024 MB GDDR3 memory with the Mobility Radeon HD 3870 X2, which are connected using a 256-bit memory interface per GPU (each GPU manages 512 MB). The GPU is operating at a frequency of 660 MHz, memory is running at 850 MHz.
Its power draw is rated at 110 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Mobility Radeon HD 3870 X2 is connected to the rest of the system using a PCI-Express 2.0 x16 interface.
Its power draw is rated at 110 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Mobility Radeon HD 3870 X2 is connected to the rest of the system using a PCI-Express 2.0 x16 interface.
Graphics Processor
Mobile Graphics
- Release Date
- Sep 1st, 2008
- Generation
-
M8x
(Mobility HD 3800)
- Predecessor
- M7x
- Successor
- M9x
- Production
- End-of-life
- Bus Interface
- PCIe 2.0 x16
- Reviews
- 2 in our database
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 660 MHz
- Memory Clock
-
850 MHz
1700 Mbps effective
Memory
- Memory Size
- 512 MB
- Memory Type
- GDDR3
- Memory Bus
- 256 bit
- Bandwidth
- 54.40 GB/s
Render Config
- Shading Units
- 320
- TMUs
- 16
- ROPs
- 16
- Compute Units
- 4
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 10.56 GPixel/s
- Texture Rate
- 10.56 GTexel/s
- FP32 (float)
- 422.4 GFLOPS
- FP64 (double)
- 84.48 GFLOPS (1:5)
Board Design
- TDP
- 110 W
- Outputs
- Portable Device Dependent
Graphics Features
- DirectX
- 10.1 (10_1)
- OpenGL
- 3.3
- OpenCL
- N/A
- Vulkan
- N/A
- Shader Model
- 4.1
M88 GPU Notes
| Desktop Variant: RV670 Codename: Boom Graphics/Compute: GFX3 Display Core Engine: 2.0 Unified Video Decoder: 1.0 216-0709001 - M88 LP-L / M88-L 216-0709003 - M88 XT-L 216-0709005 - M88-LE |
Apr 26th, 2024 07:58 EDT
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