• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

2080 TI maximum data output or: How I Learned to Stop Worrying and upgrade to PCI 4.0+

Jun 29, 2011
379 (0.13/day)
System Name ---
Processor Ryzen 1600
Motherboard ASRock Taichi X370
Cooling Noctua D15
Memory G.Skill 3200 DDR4 2x8GB
Video Card(s) EVGA 1080 TI
Storage 500GB Samsung Evo 960 NVMe + 5x 2TB HDDs
Display(s) LG EF9500 55"
Case Haf X (Red)
Audio Device(s) Onboard
Power Supply Corsair AX850
(System specs listed in profile)

Right now I am waiting on the successor to the 2080 TI to upgrade my graphics card, and at the same time will either upgrade my processor to a 3900X or, if AM4 still supports Zen 3, buy something from the Ryzen 4 line. What I am curious about, however, is how close the current top end card (2080 TI) is to saturating the PCI 3.0 interface. I know it's a bit early to be thinking about this, but I'd like to hold on to my current motherboard for another 3 graphics card upgrades (i.e. 5 years upgrading every other generation) and if top end performance increases ~30% each year I am trying to ballpark whether or not I can do that with my current motherboard/memory, or if it is better to upgrade to PCI 4.0.
May 4, 2011
322 (0.11/day)
System Name Arena-Fighter6a
Processor AMD Ryzen 7 2700x
Motherboard Asrock x470 Taichi Ultimate
Cooling AMD Wraith Prism
Memory 2x16GB 3000MHz CL16 DDR4
Video Card(s) Gigabyte Radeon R9 380 4GB
Storage JBOD: 2+1+1TB 7200RPM HDD
Display(s) Samsung S24E370DL 24" IPS Freesync 75Hz
Case SilentiumPC Armis AR7 TG-RGB
Audio Device(s) Creative X-Fi Titanium PCIe x1
Power Supply Corsair HX850 80+ Platinum
Mouse Gigabyte Aorus M3
Keyboard Zalman ZM-K300M
Software Windows 10 x64 Enterprise/Ubuntu Budgie amd64
Even 2080ti is far away from saturating pci-express 3.0 bandwith.
Nov 13, 2007
7,181 (1.68/day)
Austin Texas
System Name Q
Processor Intel i7 7820X Delidded @ 4.7 Ghz / 3.3 Ghz Mesh
Motherboard MSI X299 Tomahawk
Cooling 120mm Custom Liquid
Memory 32 GB Quad 3800 Mhz DDR4 17-17-17-36-360-2T
Video Card(s) Gigabyte GTX 2080 Ti Windforce (Undervolted OC)
Storage 1Tb Samsung 960 Pro m2, 2TB SATA SSD
Display(s) Dell 24" 2560x1440 144hz, G-Sync @ 165Hz
Case Jonsbo U4 Compact ATX
Audio Device(s) Arctis 7
Power Supply Corsair SF750
Mouse 6D G402
Keyboard tenkeyless
Software Windows 10 64 Bit
Benchmark Scores 5011 Cinebench
Extremely far.

like if you switch it to to PCI-E 2.0 you won't notice far.


New Member
Jan 19, 2019
13 (0.07/day)
PCI Express 4.0 will make SSD speeds faster etc
Yes for a simple reason:

PCIe 3.0 x4 has a max bandwidth of 4 GB/s, and PCIe 4.0 has 8 GB/s.

PCIe 3.0 x16 used by GPUs has 16 GB/s max speed and PCIe 4.0 x16 will have 32 GB/s.

You can run PCIe 4.0 SSD which can do 5 GB/s but on PCIe 3.0 x8 slot