Most benchmarks hand you a score and leave you guessing. PCBusBench finds what's actually holding your machine back — and tells you how to fix it. More often than not it's a $12 cable, not a $200 part.
It reads the true negotiated link speed from the hardware. So you replace a $15 enclosure instead of a perfectly good $150 drive.
XMP/DOCP silently reverts after a BIOS reset or a power cut. You've been running slow for months and nothing told you.
A sustained load test that heat-soaks the card — and knows the difference between real throttling and a normal power cap. Most tools cry wolf.
It finds capability you already paid for: unused faster NICs, 10 Gbps USB, GPUs running at half their PCIe lanes.