Tested on 6 different cards.

lspci -vmmnn

Slot:	02:01.0
Class:	Ethernet controller [0200]
Vendor:	Realtek Semiconductor Co., Ltd. [10ec]
Device:	RTL-8139/8139C/8139C+ [8139]
SVendor:	Hewlett-Packard Company [103c]
SDevice:	Presario C700 [30d9]
Rev:	10

lspci -vvnnk

05:04.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 66 (8000ns min, 16000ns max)
        Interrupt: pin A routed to IRQ 16
        Region 0: I/O ports at 1000 [size=256]
        Region 1: Memory at f8d00000 (32-bit, non-prefetchable) [size=256]
        [virtual] Expansion ROM at 10000000 [disabled] [size=64K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: 8139too
        Kernel modules: 8139cp, 8139too