TL;DR: The Raspberry Pi 5 is roughly 2–3x faster than the Pi 4 in CPU-bound tasks and dramatically quicker in I/O thanks to its PCIe interface and dedicated southbridge, making it a genuine desktop-class leap rather than a modest refresh. For most new projects the Pi 5 is the clear choice, though the Pi 4 remains excellent value for light workloads and runs cooler out of the box.
What Changed Under the Hood
The Pi 5 swaps the Pi 4’s Cortex-A72 cores for a quad-core Cortex-A76 clocked at 2.4GHz, built on a 16nm process. That architectural jump alone accounts for much of the per-clock performance gain. The bigger structural change is the RP1 southbridge chip, which offloads USB, Ethernet, and GPIO handling from the main SoC — a design decision that finally resolves the Pi 4’s notorious USB and Ethernet bandwidth sharing. The Pi 5 also adds a single-lane PCIe 2.0 connector, a real-time clock, a power button, and dual 4Kp60 HDMI outputs.
If you want to dig deeper, check out our guide on **AI Agents Are Now Part of Mainstream Workplace Workflows**.
Real-World Benchmark Results
In synthetic tests like Geekbench 6 and SysBench, the Pi 5 typically posts single-core scores 1.8–2.2x higher than the Pi 4 and multi-core scores around 2x higher. Memory bandwidth roughly doubles with LPDDR4X-4267, and microSD throughput improves noticeably. In practical terms, compiling a mid-sized C++ project that takes 20 minutes on a Pi 4 finishes in about 8–9 minutes on a Pi 5. Python scripts doing data crunching see similar 2x speedups.
Storage is where the gap widens further. With an NVMe SSD over the PCIe HAT, the Pi 5 hits sequential reads north of 800MB/s versus roughly 40–45MB/s for microSD on either board — a transformational difference for databases, container workloads, and anything involving large files. Even USB 3.0 storage feels snappier because the RP1 no longer chokes on shared bandwidth.
Graphics performance improves too: the VideoCore VII GPU handles 4Kp60 decode smoothly and drives dual displays without the stutter that plagued the Pi 4. For retro gaming and media center use, the Pi 5 is comfortably ahead.
Thermals, Power, and Practical Trade-offs
The Pi 5 runs hotter and draws more power — it needs a 5V/5A supply for full performance and strongly benefits from the official Active Cooler. Without cooling, it throttles under sustained load, something the Pi 4 handled more gracefully at its lower TDP. The Pi 4 also retains an advantage in idle power draw, which matters for always-on battery or solar projects.
Industry Impact
The Pi 5’s PCIe and RP1 architecture pushed the single-board computer market toward genuine desktop replacement territory, pressuring competitors like Orange Pi and Rock Pi to ship faster I/O. It also accelerated adoption in edge computing and light server roles, where cheap NVMe-backed nodes now make sense. Supply has stabilized, and prices start around $60 for the 4GB model.
FAQ
Q: Is the Raspberry Pi 5 worth upgrading from a Pi 4?
A: Yes, if you run CPU-heavy workloads, need fast storage, or use dual displays — the 2–3x gains are tangible. If your Pi 4 mostly runs lightweight scripts or Pi-hole, the upgrade is hard to justify.
Q: Does the Pi 5 need active cooling?
A: For sustained loads, yes. The official Active Cooler is inexpensive and prevents throttling; light desktop and GPIO projects can run passively with a decent case.
Q: Can I use my Pi 4 accessories with the Pi 5?
A: Mostly. The 40-pin GPIO header and microSD cards carry over, but you’ll need a new case, a 5A
Leave a Reply