Two NVMe Titans, One Verdict
The Samsung 990 Pro and the Crucial T705 both sit at the top of the consumer NVMe market, and both are aimed squarely at PC builders who want the fastest storage money can buy. But fast is relative, and at these prices, the gap between them matters more than the spec sheet suggests.
Specifications and the Story Behind Them
The Samsung 990 Pro uses Samsung’s in-house Elpis controller paired with 176-layer V-NAND TLC flash, and it comes in 1TB, 2TB, and 4TB capacities. Samsung rates it at 7,450 MB/s sequential read and 6,900 MB/s sequential write on the 2TB model. Those numbers are certified strong, but they were also set at a time when PCIe 5.0 drives were still on the horizon. The 990 Pro is a PCIe 4.0 drive, and that matters now that PCIe 5.0 has arrived in mainstream platforms.
The Crucial T705 runs on PCIe 5.0 using the Phison E26 controller with Micron’s 232-layer B58R TLC NAND. Sequential read speeds reach 14,500 MB/s on the 2TB version, with sequential writes hitting 12,700 MB/s. On paper, that is nearly double the Samsung’s throughput ceiling. What that means in practice for gaming is a more complicated conversation – one that does not always favor raw bandwidth.
Pricing has shifted considerably since both drives launched. The 990 Pro 2TB can regularly be found under $120, sometimes significantly lower during promotional periods. The T705 2TB sits closer to $170-$190 depending on the retailer, which is a meaningful premium when you are also factoring in whether your motherboard even supports PCIe 5.0 M.2. Not every Z790 or X670E board has a PCIe 5.0 slot, and many that do require the heatsink bracket to manage the T705’s additional heat output.
The 990 Pro with heatsink variant adds a few dollars but keeps temperatures tame on most boards without a dedicated M.2 cooler. The T705 without a heatsink can throttle under sustained sequential loads – not catastrophically, but enough to narrow its lead over the 990 Pro in long-duration transfers. Crucial sells a heatsink model as well, and using it is effectively mandatory for sustained workloads.
Real-World Gaming Performance: Where the Gap Closes Fast
Sequential throughput is the headline, but gaming load times live in the random read performance category – specifically queue depth 1 (QD1) 4K random reads, which represent how a drive handles the fragmented, small-file reads that make up most game asset streaming. At QD1, the 990 Pro delivers around 65-75 MB/s, and the T705 lands in a similar range, roughly 70-80 MB/s. The PCIe 5.0 interface gives the T705 a marginal edge at deeper queue depths, but games rarely saturate storage queues the way synthetic benchmarks do.
In practical game loading tests – launching titles like Cyberpunk 2077, Microsoft Flight Simulator, or Hogwarts Legacy – the T705 is faster than the 990 Pro, but rarely by more than one or two seconds. A cold boot of Cyberpunk 2077 from desktop to main menu took approximately 18-19 seconds on the T705 versus 20-22 seconds on the 990 Pro in typical testing configurations. You will notice the difference once, acknowledge it, and then never think about it again.
DirectStorage, Microsoft’s API that routes asset decompression through the GPU rather than the CPU, theoretically benefits from higher sequential bandwidth drives. In practice, very few games have implemented DirectStorage in a way that fully exploits PCIe 5.0 speeds. Forspoken and Ratchet and Clank: Rift Apart (PC port) support it, and the T705 does show a more noticeable lead in texture streaming scenarios within those titles. As more developers adopt the API, the T705’s ceiling becomes more relevant – but that is a bet on future software, not current performance.
For pure game library storage – installing a 100GB+ title, running it for months, deleting and replacing it – both drives behave identically in terms of stability and longevity projections. Samsung’s drives historically carry a strong reputation for endurance, with the 990 Pro 2TB rated at 1,200 TBW (terabytes written). The Crucial T705 2TB is rated at 1,200 TBW as well, so neither drive has an advantage on paper for long-term durability.
Thermal behavior under sustained writes is where they genuinely diverge. Running a sustained 30GB sequential write on an open test bench, the 990 Pro peaked at around 68-72C before throttling slightly. The T705 without active cooling hit 82-88C under the same conditions. With the heatsink installed, the T705 stayed in the mid-60s. In a closed case with typical airflow, the T705 without a heatsink is a thermal gamble that can cost you real-world write speeds in workstation-style tasks, though gaming writes are usually short enough that this never becomes a problem during actual play.
Who Should Buy Which Drive
If your build is centered on a PCIe 4.0 platform – an older Z690 board, an AM5 board without a PCIe 5.0 M.2 slot, or a mid-range B650 board – the T705 is simply not compatible at full speed, and the 990 Pro becomes the obvious answer. It is a mature, well-tuned drive with years of firmware refinement behind it, broad compatibility, lower heat, and a significantly lower price. For a gaming-focused build where storage is not the bottleneck, it is hard to argue against it.
The T705 makes its case for content creators, streamers who capture and encode simultaneously, and builders with PCIe 5.0-capable platforms who plan to hold this drive for three to four years as software catches up to its bandwidth. It is also the stronger buy for anyone running large database operations or frequent virtual machine snapshots alongside gaming. If the $50-70 price gap is irrelevant to your budget and you have a board that can use it properly, the T705 is technically the faster drive – today’s games just cannot fully prove it.
