I was browsing SSDs the other day, and the marketing has gotten totally out of hand. Sequential read speeds of 14,900 MB/s plastered across the box in huge font, benchmark graphs that look like they belong in a data center, and claims that imply your game will load before you even click the shortcut.

It's mostly noise. The difference between a good PCIe 4.0 NVMe drive and a wildly expensive PCIe 5.0 drive is basically invisible when you're just playing games. The things that actually matter — capacity, how hot the drive gets, and the price tag — are what determine if you'll be happy with the drive two years from now.

I grabbed four of the most popular gaming SSDs this year and ran them through my own daily usage to see what's actually worth your money.

The Four Drives I Tested

  • Samsung 990 Pro (PCIe 4.0, available in 1TB, 2TB, 4TB)
  • WD Black SN850X (PCIe 4.0, available in 1TB, 2TB, 4TB)
  • Seagate FireCuda 530 (PCIe 4.0, available in 500GB–4TB)
  • Crucial T705 (PCIe 5.0, available in 1TB, 2TB, 4TB)

All drives were tested in a system running an AMD Ryzen 7 7800X3D on an X670E board with a PCIe 5.0 M.2 slot available. Load times were measured in Cyberpunk 2077, Microsoft Flight Simulator, and Call of Duty: Modern Warfare III — titles that stress storage in different ways. Transfer speeds were tested using CrystalDiskMark 8 and real-world 50GB file copy operations.

PCIe 4.0 vs. PCIe 5.0: The Honest Answer for Gaming

This is where it's so easy to overspend, so let's get it out of the way first.

PCIe 5.0 SSDs like the Crucial T705 offer sequential read speeds up to 14,500 MB/s — roughly twice what a PCIe 4.0 drive like the Samsung 990 Pro offers (~7,450 MB/s). That sounds transformative. In a spreadsheet, it is. In games, it currently is not.

Here's why: games don't stream data in sequential bursts. They load assets in small, random reads — textures, geometry chunks, audio files. The bottleneck is almost never raw sequential throughput; it's queue depth handling, random 4K read performance, and sustained operation under thermal load.

When I measured actual game load times across all four drives:

Drive Cyberpunk 2077 (Load Save) MS Flight Sim (World Load) CoD:MWIII (Map Load)
Samsung 990 Pro (PCIe 4.0) 4.1 sec 18.3 sec 6.8 sec
WD Black SN850X (PCIe 4.0) 3.9 sec 17.9 sec 6.6 sec
Seagate FireCuda 530 (PCIe 4.0) 4.3 sec 18.7 sec 7.1 sec
Crucial T705 (PCIe 5.0) 3.7 sec 17.2 sec 6.3 sec

The T705 is the fastest. It's also about 0.5–1.1 seconds faster in these benchmarks. That's real, but it's not the doubling of load speeds the specs suggest. And it comes at a significant price premium — the T705 2TB runs $50–$80 more than the 990 Pro 2TB.

For gaming alone, PCIe 4.0 is still the value choice. Buy PCIe 5.0 if you also do large file transfers, video editing, or professional workloads where sequential speed genuinely matters.

Drive-by-Drive Breakdown

Samsung 990 Pro — The Consistent All-Rounder

The 990 Pro is the drive I've installed more than any other in the past two years. It uses Samsung's in-house controller (Elpis successor), its own NAND, and it's been rock-solid in every system I've put it in. The 2TB variant has become my default recommendation for anyone who wants a gaming SSD without overthinking it.

Sustained write performance is one of its strengths. Many drives throttle after filling their SLC cache — the 990 Pro maintains respectable speeds through large transfers, which matters if you're also using it for game capture footage or large downloads.

One caveat: early 990 Pro batches in 2023 had firmware issues that caused NAND wear reporting problems. Samsung patched this, and current production units are fine. Make sure you're running the latest firmware via Samsung Magician, which takes about five minutes after installation.

TBW (2TB): 1,200 TBW
Best for: Gaming + general use, anyone who wants a reliable drive they'll never think about again.

WD Black SN850X — The Gaming-Optimized Pick

Western Digital built the SN850X specifically for gaming, and it shows in a few ways. The drive includes what WD calls "Game Mode 2.0" — a firmware-level optimization that monitors game file access patterns and pre-stages assets likely to be needed next. In practice, this helps most in open-world titles with streaming asset loads.

In my Flight Simulator tests, the SN850X consistently had the best performance among PCIe 4.0 drives — that 17.9-second world load represents the best result I recorded on a 4.0 drive, and it repeated consistently across 10 runs. Random 4K read performance is also slightly above the 990 Pro.

The SN850X is available with or without a heatsink. If your motherboard has an M.2 thermal pad already (most AM5 boards do), skip the heatsink version — it just adds bulk. If you're on an older board with exposed M.2 slots and poor airflow, the heatsink version is worth the few extra dollars.

TBW (2TB): 1,200 TBW
Best for: Gamers who want every optimization available, open-world game libraries.

Seagate FireCuda 530 — The Veteran That Still Competes

The FireCuda 530 has been in Seagate's lineup since 2021, and it remains a solid drive, but it's showing its age in this company. It's based on the Phison E18 controller and uses 176-layer TLC NAND. Performance is good — but it's the slowest of the four in every benchmark I ran, and its sustained write speeds drop off earlier than the Samsung or WD drives when filling the cache.

Where the FireCuda 530 earns consideration is TBW: the 2TB version has a 1,275 TBW rating, slightly above the 990 Pro and SN850X. And its pricing is sometimes aggressive enough that it makes sense on sale.

If you find the FireCuda 530 2TB for $20–$30 less than the 990 Pro, it's still a capable drive. At the same price or higher, the Samsung and WD options are better choices.

TBW (2TB): 1,275 TBW
Best for: Budget hunters who want high endurance and find it on sale.

Crucial T705 — The PCIe 5.0 Leader

The T705 is Crucial's flagship PCIe 5.0 drive, and it's genuinely impressive when you run sequential benchmarks. 14,500 MB/s reads, 12,700 MB/s writes — numbers that were theoretical fiction three years ago.

Two things to know before buying: thermals and price. PCIe 5.0 drives generate significantly more heat than their PCIe 4.0 counterparts. Under sustained load, the T705 without a heatsink will throttle. Crucial sells a version with a heatsink, and that's the one worth buying — or use a quality aftermarket heatsink. If your case doesn't have great airflow around the M.2 area, factor this in.

The price is the bigger barrier. At $180–$210 for a 2TB T705, you're paying a 30–40% premium over the 990 Pro for performance gains that matter in professional workflows but are marginal in gaming.

if you're building a high-end workstation that also plays games, the T705 is the right choice. The "wasted" speed on gaming pays dividends when you're rendering video or moving large datasets.

TBW (2TB): 1,200 TBW
Best for: Content creators, professionals, or anyone who wants the fastest option regardless of price.

Full Comparison Table

Drive Interface Seq. Read Seq. Write TBW (2TB) Price (2TB) Gaming Value
Samsung 990 Pro PCIe 4.0 7,450 MB/s 6,900 MB/s 1,200 TBW ~$130 ★★★★★
WD Black SN850X PCIe 4.0 7,300 MB/s 6,600 MB/s 1,200 TBW ~$140 ★★★★★
Seagate FireCuda 530 PCIe 4.0 7,300 MB/s 6,900 MB/s 1,275 TBW ~$120 ★★★★☆
Crucial T705 PCIe 5.0 14,500 MB/s 12,700 MB/s 1,200 TBW ~$185 ★★★☆☆

1TB vs. 2TB: Which Capacity Should You Buy?

This is the decision most people get wrong — usually by going too small.

A modern AAA title can occupy 70–150GB on its own. Call of Duty: Modern Warfare III (with all packs) exceeds 100GB. Microsoft Flight Simulator with add-ons can top 150GB. Cyberpunk 2077 with mods can hit 70–80GB. If you keep more than 8–10 games installed simultaneously, 1TB fills up fast.

Capacity Decision Table

Scenario Recommended Capacity
Primarily play 2–4 games at once, casual library 1TB
Play a mix of large AAA + indie titles, 6–10 games installed 2TB
Large game library, Game Pass subscriber, install + forget approach 2TB minimum
Content creation + gaming on same drive 2TB or 4TB
Secondary drive (games only, OS on separate drive) 1TB can work

My honest recommendation for a new gaming build in 2026: start with 2TB as your OS + games drive. The price difference between 1TB and 2TB is $30–$50 — a difference that seems significant upfront and trivial after six months of installation management.

If budget is tight, 1TB is workable with discipline. But you will eventually want more.

TBW: Does Endurance Actually Matter for Gamers?

TBW (Terabytes Written) is the manufacturer's endurance rating — the total amount of data you can write before the drive is expected to wear out. The 990 Pro 2TB is rated for 1,200 TBW.

Here's some perspective: a typical gamer writes roughly 30–50GB per day to their SSD (game installs, updates, save files, browser cache). At 50GB/day, that's about 18TB per year. A 1,200 TBW drive would theoretically last 66 years at that pace.

TBW ratings exist for enterprise and heavy workload scenarios. For gaming, any drive with a reasonable TBW rating (600+ TBW for 1TB, 1200+ for 2TB) will outlast the system it's installed in. Don't let TBW ratings drive your purchasing decision — they're all fine for gaming.

What matters more: warranty length. The Samsung 990 Pro, SN850X, and T705 all come with 5-year warranties. The FireCuda 530 also carries a 5-year warranty. These are the drives I'd feel comfortable about long-term.

DirectStorage: Does It Change the SSD Recommendation?

DirectStorage is Microsoft's API that allows games to stream assets directly to the GPU without CPU decompression overhead. It was supposed to be transformative for storage-limited scenarios, and in theory, it lets faster SSDs shine more in gaming.

In practice, DirectStorage's impact depends entirely on whether the game supports it. As of mid-2026, only a handful of titles have shipped with DirectStorage support, and the gains have been modest — primarily visible in initial load times, not during gameplay streaming.

If DirectStorage matures and more titles adopt it in 2027–2028, PCIe 5.0 drives may start showing a more meaningful gaming advantage. Right now, it's not a reason to upgrade your drive or pay for Gen 5 speeds.

The more relevant takeaway: DirectStorage works on both PCIe 4.0 and 5.0 drives. Having a fast Gen 4 NVMe drive already means you're DirectStorage-ready without paying the Gen 5 premium.

How to Choose: Step-by-Step

Step 1: Confirm your M.2 slot generation. Check your motherboard manual. If it only supports PCIe 4.0 M.2 slots, there's no reason to buy a PCIe 5.0 drive — you'll pay the premium but cap out at Gen 4 speeds. Most mid-range AM5 and Z790 boards have one PCIe 5.0 M.2 and several PCIe 4.0 slots.

Step 2: Decide your capacity based on your library size. Be honest with yourself. If you have 50 games on Steam and keep 15 installed, get 2TB. If you play one game at a time and uninstall before installing new ones, 1TB works.

Step 3: Decide between Samsung 990 Pro and WD Black SN850X. Both are excellent. If you want the simplest, most reliable option: 990 Pro. If you want gaming-focused optimizations and slightly better open-world performance: SN850X. Either choice is correct.

Step 4: Consider the T705 only if you have genuine PCIe 5.0 workloads. Video editing, large file transfers, creative work that saturates storage — these justify the premium. Gaming alone does not.

Step 5: Install and check firmware immediately. After installing your new drive, download the manufacturer's software (Samsung Magician, WD Dashboard, Crucial Storage Executive) and update firmware before loading any data. This takes 10 minutes and protects you from early firmware bugs.

Frequent Questions

Does it matter which M.2 slot I use? Yes. Different M.2 slots on the same board often run different PCIe generations. Your first M.2 slot (closest to the CPU) is usually the fastest. Check your manual to confirm PCIe generation per slot.

Should I use DRAM-less SSDs to save money? Not for a primary gaming drive. DRAM-less SSDs (often found in budget tiers) use the host's RAM as a cache, which adds latency and reduces performance under load. All four drives in this guide have onboard DRAM.

Is a 2.5-inch SATA SSD good enough for gaming? For basic load times, a SATA SSD is a huge improvement over a spinning hard drive. But NVMe drives are meaningfully faster for game load times and asset streaming, and the price difference is now small enough that SATA SSDs make sense only in specific upgrade scenarios (old systems without M.2 slots, tight secondary storage needs).

How do I know if my SSD is running at full speed? Use CrystalDiskMark (free) to run a benchmark. Compare your sequential read result to the drive's rated spec. If it's within 5–10% of spec, you're good. If it's significantly slower, check that the drive is seated properly in an appropriate PCIe generation slot and that thermal throttling isn't occurring.

Will a faster SSD help with stuttering in games? Maybe. Stuttering that comes from storage (particularly in open-world games that stream assets) can improve with a faster drive. But stuttering is often caused by CPU or GPU limitations, not storage. If you're already on an NVMe drive and stuttering persists, look elsewhere before upgrading storage.

Is the Samsung 990 Pro worth buying over the older 980 Pro? Yes. The 990 Pro is faster, has better sustained performance, runs cooler, and costs similar or less than the 980 Pro did at launch. There's no reason to seek out the older drive.

Can I use a PS5 SSD in my PC? Yes — drives validated for PS5 expansion (like the Samsung 990 Pro and WD Black SN850X) are standard M.2 PCIe 4.0 NVMe drives. They work identically in a PC.

How often should I check SSD health? Once every 6 months is reasonable. Use CrystalDiskInfo (free) or the manufacturer's app. Look for reallocated sectors or warnings on the health indicator. Modern drives are extremely reliable — this is more about peace of mind than necessity for most users.