Crucial DDR5 Classic 48GB DDR5-5600

48GB of DDR5 in a single SODIMM, running at 5600 MT/s. The capacity is top-tier at the 85th percentile, but CL46 latency drags it down to the 23rd percentile. Buy it for capacity-hungry laptop workloads, not for speed.

5600 MT/s at CL46 is a mixed bag. The transfer rate is well above average for laptop memory, and Crucial's own numbers claim up to 1.75x more data than the max standard DDR4 rate of 3200 MT/s. That's real bandwidth, and it shows up in file transfers and memory-hungry workloads. But CL46 is loose. Really loose. In our database, that latency ranks in the bottom quarter of all products in this category. For most laptop users, the bandwidth bump outweighs the latency penalty. For latency-sensitive tasks, it's a compromise. The 1.10V operating voltage is efficient, and the 2Rx8 configuration helps with stability under load. Single-channel operation is the other limitation here. One stick means no dual-channel bandwidth, which matters for integrated graphics and some productivity workloads. Buyers running this alongside a soldered module report it works fine, but pure single-channel setups leave performance on the table.

Against the Kingston FURY Beast KF564C32BWEAK2-64, the Crucial stick gives up a lot on latency. The Kingston kit runs CL32 at the same 5600 MT/s, which is dramatically tighter. The G.Skill Trident Z5 Royal and Corsair VENGEANCE RGB both push 6000 MT/s and 6400 MT/s respectively, with CL26 to CL32 timings. Those are desktop kits though, and the Crucial is a SODIMM for laptops, so the comparison isn't entirely fair. The KLEVV CRAS V RGB and Team Group T-CREATE EXPERT also target desktop builds. For laptop users who need 48GB in a single SODIMM slot, the Crucial is one of very few options available. That scarcity is part of why the price holds up despite the loose timings.

Value is where this stick gets complicated. The affordability percentile is 13th, which means it's priced near the bottom of the pack for budget-conscious buyers. US listings run from USD 600 to USD 820, a USD 220 spread across just two vendors. That's a huge gap for the same module. If you're shopping in the US, the lower end of that range is the only sensible option. European buyers face EUR 1,200 to EUR 1,400 across four listings, a EUR 200 spread. The CAD 883 and GBP 799 listings are single-vendor situations with no comparison shopping available. For the capacity you get, the price per gigabyte isn't terrible, but you're paying a premium for density that most people simply don't need.

The Crucial DDR5 Classic CT48G56C46S5 is a 48GB SODIMM that sits in the 85th percentile for capacity in our database. That's the headline here. You're getting a single stick with more RAM than most laptops ship with in total, running at 5600 MT/s. The speed lands in the 77th percentile, which is solid, but the CL46 latency is where things get rough. That's a 23rd percentile showing, and it's the trade-off you make for this much density on one module.

Skip this if you're a casual user. The 13th percentile affordability ranking means you're paying a serious premium for capacity you won't touch. If you browse, stream, and run office apps, 16GB or 32GB will serve you fine at a fraction of the cost. Also skip it if you own a Lenovo laptop with known die density limitations, since several owners report incompatibility. And if you're chasing memory performance rather than capacity, the CL46 latency and single-channel operation make this a poor fit. There are faster options with tighter timings for less money if you don't need 48GB in one stick.

The Crucial DDR5 Classic CT48G56C46S5 is a capacity play, pure and simple. If your laptop has a single SODIMM slot and you need 48GB for video editing, 3D rendering, or running multiple VMs, this is one of the only games in town. The 85th percentile capacity ranking backs that up. But the CL46 latency and single-channel limitation mean you're not getting peak performance. User sentiment sits at 61st percentile, with owners praising the capacity and easy installation while flagging compatibility issues with certain Lenovo models. For the right workload, it's a solid buy. For everyone else, it's expensive overkill.