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Blackmagic Design Blackmagic eGPU vs PELADN Link S-3: Comparison

Blackmagic Design Blackmagic eGPU and PELADN Link S-3 separate most on host power delivery: Blackmagic Design Blackmagic eGPU at 85, PELADN Link S-3 at 140, 39% in favour of PELADN Link S-3.

Blackmagic eGPU (Pre-Installed Radeon Pro 580 8GB / Thunderbolt 3 / Apple-Designed Aluminum Chassis / Mac-Focused, Discontinued)
BlackmagicBlackmagic Design Blackmagic eGPU
PELADN Link S-3 (Thunderbolt 5 eGPU Dock / 80Gbps / External ATX-PSU Required / Budget OCuLink Alternative)
PELADNPELADN Link S-3

Specs

Specification
Blackmagic eGPU (Pre-Installed Radeon Pro 580 8GB / Thunderbolt 3 / Apple-Designed Aluminum Chassis / Mac-Focused, Discontinued)
Blackmagic Design Blackmagic eGPU
PELADN Link S-3 (Thunderbolt 5 eGPU Dock / 80Gbps / External ATX-PSU Required / Budget OCuLink Alternative)
PELADN Link S-3
Connection StandardThunderbolt 3 (dual ports for daisy-chaining)Two Thunderbolt 5 ports, theoretical 80Gbps bidirectional, with DisplayPort 2.1 Alt Mode; internal PCIe 4.0 x4 slot for the graphics card
BrandBlackmagic DesignPELADN
Extra PortsHDMI, DisplayPort, 2x USB-A 3.1, additional Thunderbolt 32x Thunderbolt 5, 1x USB 3.2 Gen 2 Type-A, 1x M.2 2280 SSD slot (PCIe 3.0 x1), 2.5GbE Ethernet (RTL8156B), SD card reader
Host Power Delivery85-39%140
Cooling TypeActive fan, designed by Apple for quiet operationPassive/slim chassis cooling for the dock itself; GPU cooling is entirely down to the card, similar to most bare-bones eGPU docks
ModelBlackmagic eGPULink S-3
PriceLaunched at $699 (2018), discontinuedRoughly $278 USD equivalent in Canada (~$384 CAD) at launch, but reported as high as $460 USD via AliExpress for the US market due to tariffs — pricing has varied significantly by region, so treat any single figure as a snapshot rather than a fixed MSRP

Verdict

Blackmagic Design Blackmagic eGPU

6.5 / 10 Expert Rating

A clean, quiet, Mac-tailored eGPU that was easy to buy and use, but has been discontinued for years and can't be upgraded.

PELADN Link S-3

6 / 10 Expert Rating

An interesting, genuinely cheaper-to-build Thunderbolt 5 eGPU option for people who already have a spare ATX/SFX PSU, but inconsistent regional pricing and near-zero independent review coverage mean it's a bigger gamble than the budget framing suggests.

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