I have an Acer Aspire V3 551G-X419 laptop, and it is advertised to have a 7660G iGPU (on the 4600M APU), and a 7670M dGPU. Under various Linux distros however, lspci speficies:
Specifically, the Subsystem stating a 7650M and the name itself being just Thames (I believe the 7670M is based off Thames-Pro, but I could be wrong).
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Radeon HD 7650M
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f0400000 (64-bit, non-prefetchable) [size=128K]
I/O ports at 4000 [size=256]
[virtual] Expansion ROM at f0420000 [disabled] [size=128K]
Capabilities:  Power Management version 3
Capabilities:  Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities:  Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities:  Advanced Error Reporting
Kernel driver in use: radeon
Kernel modules: radeon
I've done a update-pciids and it still reports the same information. From what I recall, the chip on the motherboard itself doesn't reveal any kind of product number or anything visually (unless it's really tiny or something).
According to this unrelated bug report on Launchpad, an owner of a Acer Aspire 7750G laptop (with advertised 7670M) has their lspci reporting both a Thames XT and 7670M.
I've reported this to Acer on their forums, but so far they seem rather silent on it aside from the update-pciids suggestion: http://community.acer.com/t5/Noteboo...PU/td-p/171587
Could lspci be mistaken, or was I sold something not-as advertised?