Kingston Fury Renegade G5 4TB VS PNY CS3250 4TB

Both drives operate at the cutting edge of Gen 5 sequential read performance, with the PNY CS3250 reaching 14,900 MB/s and the Kingston Fury Renegade G5 reaching 14,800 MB/s. The 100 MB/s delta between them is less than 0.7% — a gap that is essentially imperceptible in any real-world workload.

At this tier of throughput, both drives can saturate even the most demanding use cases: transferring massive 4K RAW video files, loading large game worlds, or feeding high-bandwidth AI/ML pipelines. The bottleneck in virtually any system will be elsewhere — CPU PCIe lane allocation, thermal throttling, or storage controller overhead — long before this 100 MB/s difference becomes relevant.

In terms of sequential read speed, these two drives are effectively tied. Neither product holds a meaningful real-world advantage over the other in this category, and this spec alone should not be a deciding factor between them.

Sequential write performance tells a particularly important story for sustained workloads — think large file ingestion, video editing scratch disks, or continuous backup operations. Here, both the Kingston Fury Renegade G5 and the PNY CS3250 land at an identical 14,000 MB/s, leaving no daylight between them.

A write ceiling of 14 GB/s is a genuinely elite figure for a consumer Gen 5 drive, meaning neither product compromises on sustained throughput. At this level, writing an uncompressed 4K RAW video file of 10 GB takes less than a second in ideal conditions — the kind of performance that eliminates storage as a bottleneck in even the most write-intensive creative or professional pipelines.

This group is a clear tie. With identical sequential write speeds, there is no basis for choosing one drive over the other on this metric alone.

The most consequential difference in this group is the caching architecture. The Kingston Fury Renegade G5 uses a dedicated DRAM cache, while the PNY CS3250 relies on HMB (Host Memory Buffer), which borrows a portion of the system's RAM instead of carrying its own. A dedicated DRAM cache provides faster and more consistent address lookup performance — particularly under sustained mixed workloads — whereas HMB, while capable, introduces a dependency on system memory bandwidth and adds slight latency in certain access patterns.

The two drives also differ in their controllers: the Fury Renegade G5 uses the Silicon Motion SM2508, while the CS3250 is powered by the Phison PS5028-E28-86. Both are established Gen 5 controllers with 8-channel configurations, so the architecture is comparable in parallelism. Beyond the controller and cache, the drives share the same foundational DNA — M.2 form factor, PCIe 5.0 interface, TLC NAND, NVMe protocol, 4TB capacity, and a 5-year warranty — meaning platform compatibility and long-term support are equivalent.

The Kingston Fury Renegade G5 holds a general-info edge by virtue of its dedicated DRAM cache, which offers more predictable performance headroom independent of system memory conditions. For workstation users or anyone running memory-intensive tasks alongside heavy storage I/O, this distinction is worth noting.