Oh dang it i thougth we are getting somewhere 
Anyhow here are the ethtool results - not from everything everything but endpoints so Cudy, Beryl and Linksys routers
Beryl: 1G
root@Gaming:~# ethtool eth1
Settings for eth1:
Supported ports: [ ]
Supported link modes: 10baseT/Full
100baseT/Full
1000baseT/Full
2500baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Full
100baseT/Full
1000baseT/Full
2500baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 15
Transceiver: external
Auto-negotiation: on
Current message level: 0x000000ff (255)
drv probe link timer ifdown ifup rx_err tx_err
Link detected: yes
root@Gaming:~#
root@Gaming:~# ethtool -a eth1
Pause parameters for eth1:
Autonegotiate: off
RX: on
TX: off
root@Gaming:~#
root@Gaming:~# ethtool --show-eee eth1
EEE Settings for eth1:
EEE status: disabled
Tx LPI: disabled
Supported EEE link modes: 100baseT/Full
1000baseT/Full
Advertised EEE link modes: Not reported
Link partner advertised EEE link modes: Not reported
root@Gaming:~#
-----------------------------------------------------
root@Gaming:~# ethtool -S eth1
NIC statistics:
tx_bytes: 1721178
tx_packets: 4108
tx_skip: 0
tx_collisions: 0
rx_bytes: 1500171
rx_packets: 4731
rx_overflow: 0
rx_fcs_errors: 0
rx_short_errors: 0
rx_long_errors: 0
rx_checksum_errors: 0
rx_flow_control_packets: 0
root@Gaming:~#
Beryl: 2.5G
Settings for eth1:
Supported ports: [ ]
Supported link modes: 10baseT/Full
100baseT/Full
1000baseT/Full
2500baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Full
100baseT/Full
1000baseT/Full
2500baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
2500baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 2500Mb/s
Duplex: Full
Port: MII
PHYAD: 15
Transceiver: external
Auto-negotiation: on
Current message level: 0x000000ff (255)
drv probe link timer ifdown ifup rx_err tx_err
Link detected: yes
root@Gaming:~#
root@Gaming:~# ethtool -a eth1
Pause parameters for eth1:
Autonegotiate: off
RX: on
TX: off
root@Gaming:~#
root@Gaming:~# ethtool --show-eee eth1
EEE Settings for eth1:
EEE status: disabled
Tx LPI: disabled
Supported EEE link modes: 100baseT/Full
1000baseT/Full
Advertised EEE link modes: Not reported
Link partner advertised EEE link modes: Not reported
root@Gaming:~#
NIC statistics:
tx_bytes: 4924178
tx_packets: 10627
tx_skip: 0
tx_collisions: 0
rx_bytes: 3269268
rx_packets: 10407
rx_overflow: 0
rx_fcs_errors: 0
rx_short_errors: 0
rx_long_errors: 0
rx_checksum_errors: 0
rx_flow_control_packets: 0
root@Gaming:~#
Cudy:
root@Basement:~# ethtool lan1
Settings for lan1:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: external
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: d
Wake-on: d
Link detected: yes
root@Basement:~# ethtool -a lan1
Pause parameters for lan1:
Autonegotiate: on
RX: off
TX: off
RX negotiated: off
TX negotiated: off
root@Basement:~# ethtool -S lan1
NIC statistics:
tx_packets: 50
tx_bytes: 3102
rx_packets: 120
rx_bytes: 16962
TxDrop: 0
TxCrcErr: 0
TxUnicast: 2215
TxMulticast: 78
TxBroadcast: 12
TxCollision: 0
TxSingleCollision: 0
TxMultipleCollision: 0
TxDeferred: 0
TxLateCollision: 0
TxExcessiveCollistion: 0
TxPause: 0
TxPktSz64: 697
TxPktSz65To127: 466
TxPktSz128To255: 204
TxPktSz256To511: 237
TxPktSz512To1023: 190
Tx1024ToMax: 511
TxBytes: 1067356
RxDrop: 0
RxFiltering: 357
RxUnicast: 2031
RxMulticast: 248
RxBroadcast: 229
RxAlignErr: 0
RxCrcErr: 0
RxUnderSizeErr: 0
RxFragErr: 0
RxOverSzErr: 0
RxJabberErr: 0
RxPause: 0
RxPktSz64: 847
RxPktSz65To127: 672
RxPktSz128To255: 281
RxPktSz256To511: 154
RxPktSz512To1023: 154
RxPktSz1024ToMax: 400
RxBytes: 895496
RxCtrlDrop: 0
RxIngressDrop: 0
RxArlDrop: 0
root@Basement:~#
Linksys:
root@LivingRoom:~# ethtool lan1
Settings for lan1:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: Symmetric Receive-only
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 2
Transceiver: external
Auto-negotiation: on
MDI-X: on (auto)
Link detected: yes
root@LivingRoom:~# ethtool -a lan1
Pause parameters for lan1:
Autonegotiate: on
RX: off
TX: off
RX negotiated: on
TX negotiated: on
root@LivingRoom:~# ethtool --show-eee lan1
EEE Settings for lan1:
EEE status: disabled
Tx LPI: disabled
Supported EEE link modes: 100baseT/Full
1000baseT/Full
10000baseT/Full
1000baseKX/Full
10000baseKR/Full
20000baseMLD2/Full
40000baseSR4/Full
40000baseLR4/Full
56000baseKR4/Full
56000baseCR4/Full
56000baseSR4/Full
56000baseLR4/Full
25000baseCR/Full
Advertised EEE link modes: 1000baseT/Half
10000baseT/Full
1000baseKX/Full
10000baseKX4/Full
10000baseKR/Full
10000baseR_FEC
20000baseKR2/Full
40000baseKR4/Full
56000baseKR4/Full
56000baseCR4/Full
56000baseSR4/Full
56000baseLR4/Full
Link partner advertised EEE link modes: 10000baseKX4/Full
20000baseMLD2/Full
20000baseKR2/Full
40000baseCR4/Full
40000baseSR4/Full
root@LivingRoom:~# ethtool -S lan1
NIC statistics:
rx_broadcast: 5
rx_pause: 0
rx_unicast: 50
rx_multicast: 84
rx_fcserr: 0
rx_alignerr: 0
rx_runt: 0
rx_frag: 0
rx_jmbfcserr: 0
rx_jmbalignerr: 0
rx_pkt64: 11
rx_pkt65to127: 45
rx_pkt128to255: 9
rx_pkt256to511: 60
rx_pkt512to1023: 10
rx_pkt1024to1518: 4
rx_pkt1519tox: 0
rx_toolong: 0
rx_pktgoodbyte: 43899
rx_pktbadbyte: 0
rx_overflow: 0
tx_broadcast: 23
tx_pause: 0
tx_multicast: 578
tx_underrun: 0
tx_pkt64: 20
tx_pkt65to127: 74
tx_pkt128to255: 38
tx_pkt256to511: 479
tx_pkt512to1023: 35
tx_pkt1024to1518: 2
tx_pkt1519tox: 0
tx_oversize: 0
tx_pktbyte_h: 242600
tx_collisions: 0
tx_abortcol: 0
tx_multicol: 0
tx_singlecol: 0
tx_exesdeffer: 0
tx_deffer: 0
tx_latecol: 0
tx_unicast: 47
root@LivingRoom:~#
Yayyy that Linkysys supports everything energy efficient didnt even know