Chukwuemeka Obi runs a technology review channel on YouTube that publishes two videos per week. He was editing 4K footage in DaVinci Resolve on a system he'd built himself four years ago: a Ryzen 5 3600 with 16GB DDR4 and an RX 5700 XT.
The Problem
Final exports of his 15–20 minute review videos were taking 6–9 hours. He was regularly starting exports before bed and checking in the morning to see if they'd finished. This wasn't just inconvenient — it was limiting his publishing schedule and delaying YouTube revenue.
Additionally, the preview playback in Resolve was stuttering on 4K timelines, making grading and review sessions frustrating.
The Diagnosis
The bottleneck was threefold: the Ryzen 5 3600's 6 cores were insufficient for Resolve's CPU rendering, 16GB RAM was causing paging on complex timelines, and the RX 5700 XT — while capable — wasn't delivering the GPU acceleration available to NVIDIA cards with CUDA in Resolve's full acceleration mode.
The Upgrade
Rather than rebuilding entirely, Sephora Systems recommended a targeted upgrade:
- CPU: AMD Ryzen 9 7900X (12-core, 5nm) on a new AM5 board
- RAM: 64GB DDR5-5600
- GPU: NVIDIA RTX 4070 12GB (enabling full CUDA acceleration in Resolve)
- Storage: Added 2TB PCIe 4.0 NVMe for media
The Result
A 20-minute 4K video that previously took 7 hours now exports in 42 minutes. Playback in the Resolve timeline is smooth. "I've reclaimed my evenings," Chukwuemeka told us. "I can now export in the time it takes me to eat dinner." He's since increased publishing frequency to three videos per week.