This page lists the speeds of common interfaces.
Interface Speeds
This table shows the speeds of different internal interfaces. In order to make the chart easier to compare, in addition to the speed shown as marketed all speeds have been converted to Gigabits per second as well.
| AGP
|
Accelerated Graphics Port
|
| GbE
|
Gigabit Ethernet
|
| ISA
|
Industry Standard Architecture
|
| PCI
|
Peripheral Component Interconnect
|
| PCIe
|
Peripheral Component Interconnect Express
|
| SAS
|
Serial Attached Storage
|
| USB
|
Universal Serial Bus
|
USB
| Interface |
Year |
Speed |
Gigabit/s
|
| USB 1.0
|
1996
|
1.5Mbit/s
|
0.0015
|
| USB 1.1
|
1998
|
12Mbit/s
|
0.012
|
| USB 2.0
|
2001
|
480Mbit/s
|
0.48
|
| USB 3.0
|
2008
|
5Gbit/s
|
5
|
| USB 3.1
|
2013
|
10Gbit/s
|
10
|
| USB 3.2
|
2017
|
20Gbit/s
|
20
|
| USB 4
|
2019
|
40Gbit/s
|
40
|
| USB 4 v2.0
|
2022
|
80Gbit/s
|
80
|
ISA & AGP
| Interface |
Year |
Speed |
Gigabit/s
|
| ISA
|
1981
|
16MB/s
|
0.128
|
| AGP
|
1997
|
2133MBps
|
17.064
|
FireWire
| Interface |
Year |
Speed |
Gigabit/s
|
| FireWire 400
|
1995
|
393.216Mbit/s
|
0.392216
|
| FireWire 800
|
2002
|
786.432Mbit/s
|
0.786432
|
GbE
| Interface |
Year |
Speed |
Gigabit/s
|
| 1 GbE
|
1999
|
1Gbps
|
1
|
| 2.5 GbE
|
|
2.5Gbps
|
2.5
|
| 5 GbE
|
2016
|
5Gbps
|
5
|
| 10 GbE
|
|
10Gbps
|
10
|
PCI
| Interface |
Year |
Speed |
Gigabit/s
|
| PCI33
|
1992
|
133MBps
|
1.064
|
| PCI66
|
1995
|
266MBps
|
2.128
|
PCIe
| Interface |
Year |
Speed |
Gigabit/s
|
| PCIe 1.x
|
2003
|
4GB/s
|
32
|
| PCIe 2.x
|
2007
|
8GB/s
|
64
|
| PCIe 3.x
|
2010
|
15.75GB/s
|
126
|
| PCIe 4.x
|
2017
|
31.5GB/s
|
252
|
| PCIe 5.x
|
2019
|
63GB/s
|
504
|
| PCIe 6.x
|
2022
|
121GB/s
|
968
|
| PCIe 7.x
|
2025
|
242GB/s
|
1936
|
SATA
| Interface |
Year |
Speed |
Gigabit/s
|
| SATA 1.0
|
2003
|
1.5Gbit/s
|
1.5
|
| SATA 2.0
|
2004
|
3Gbit/s
|
3
|
| SATA 3.0
|
2008
|
6Gbit/s
|
6
|
SAS
| Interface |
Year |
Speed |
Gigabit/s
|
| SAS-1
|
2004
|
3Gbit/s
|
3
|
| SAS-2
|
2009
|
6Gbit/s
|
6
|
| SAS-3
|
2013
|
12Gbit/s
|
12
|
| SAS-4
|
2017
|
22.5Gbit/s
|
22.5
|
| SAS-5
|
2018
|
45Gbit/s
|
45
|
Thunderbolt
| Interface |
Year |
Speed |
Gigabit/s
|
| Thunderbolt 1
|
2011
|
20Gbit/s
|
20
|
| Thunderbolt 2
|
2013
|
20Gbit/s
|
20
|
| Thunderbolt 3
|
2015
|
40Gbit/s
|
40
|
| Thunderbolt 4
|
2020
|
40Gbit/s
|
40
|
| Thunderbolt 5
|
2023
|
80Gbit/s
|
80
|