A budget NVMe SSD that reads at nearly 7 GB/s turns out to write at a fraction of that once its cache is spent. According to LG Display, it has started mass-producing a Full HD OLED panel, the fastest of its kind.
A cheap SSD's real write speed is nowhere near its headline number
Igor's Lab tore down and tested the Fanxiang S880E, a 1 TB PCIe 4.0 NVMe drive built around a Maxio MAP1602A-F3C controller, four QLC NAND packages, and no separate DRAM chip. On an empty drive it hit 6,979.84 MB/s sequential read and 4,202.51 MB/s sequential write in the outlet's synthetic tests, essentially the ceiling for PCIe 4.0.
That number holds only inside the drive's pSLC cache, a fast-write region the review measured at roughly 240 GB before performance begins to drop. Once that cache is exhausted, sustained write speed settles at about 153.66 MB/s, a drop the outlet measured at 95.58% from the fast-write baseline. In a practical test streaming a 330 GB 8K ProRes project, the drive missed its write deadline 3,823 times across 14,000 frames once it left the cache region.
Igor's Lab attributes the collapse to the drive's architecture rather than a defect. A DRAM-less design leaning on Host Memory Buffer, four NAND channels, and QLC flash all limit sustained and fine-grained writes. Peak temperature stayed at 54°C with no thermal throttling recorded, so the drive is not overheating, it is simply out of fast cache. The outlet's own comparison places the S880E closer to budget QLC drives like the Crucial P3 Plus than to sustained-performance TLC drives.
The practical read for buyers: this drive is well suited to mostly-read use, like storing a game library or an OS install. It is poorly suited to large sustained writes such as video editing scratch disks, big file transfers, or repeated multi-hundred-gigabyte copies where the cache runs out.
LG starts mass production of a 720Hz Full HD OLED panel
Separately, LG says it has begun mass production of a 24.5-inch Gaming OLED panel running at 720Hz with a 0.02ms response time, which the company describes as the highest refresh rate currently available in a Full HD OLED display. LG says a proprietary driving algorithm, covering panel design through driving controls, makes the 720Hz refresh possible at 1920×1080.
ASUS is the first monitor maker to use the panel, in its upcoming ROG Swift OLED PG259QWS Ace at $1,099. That monitor has been named the official display for the PGL CS2 Major Singapore 2026 tournament. LG says it plans to extend the gaming OLED lineup from 20-inch to 40-inch panels, with select models adding its Dynamic Frequency & Resolution technology.