Is my new Crucial 8GB DDR5 4800MHz SODIMM RAM faulty or incompatible?

Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

★★★★★4.8 (7,052)
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"Is Crucial's 8GB DDR5 4800MHz SODIMM RAM worth buying? Read our analysis of specs, reviews, and community feedback for performance and compatibility."

Editor's Summary

The Verdict

Recommended

"RAM is generally reliable; check compatibility and capacity needs."

Pros

  • check_circleProvides a noticeable performance bump for laptops, with faster boot times and smoother multitasking.
  • check_circleOffers great value for money, making it a competitive upgrade option.
  • check_circleEasy to install and recognised immediately without BIOS tweaks.
  • check_circleCompatible with modern laptop processors like 12th/13th Gen Intel Core and AMD Ryzen 6000 Series.

Cons

  • cancel8GB is a tight capacity for modern workloads, with 16GB often being the sensible minimum.
  • cancelOnly compatible with DDR5-enabled laptops; not a suitable upgrade for DDR4 systems.
  • cancelCL40 at 4800MHz provides baseline DDR5 latency, not an impressive speed.
Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

★★★★★4.8 (7,052 reviews)
verifiedAmazon Listing

This Crucial 8GB DDR5 RAM is generally reported as reliable and compatible.

  • Crucial has always been solid for me, and this DDR5 stick is no different — cool running, stable, and no compatibility issues.
  • Works flawlessly, upgraded from 2x8 too this, 2x16GB exellent
  • 8GB is a tight capacity for modern workloads; 16GB is the sensible minimum for most users.

While generally reliable, the 8GB capacity might be insufficient for demanding modern applications or heavy multitasking, and it is only compatible with DDR5-enabled laptops.

Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5
Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

Who it suits

Works well if

  • Upgrading older laptops to DDR5 for improved speed.
  • Budget-conscious users seeking value DDR5 memory.
  • Mini PCs and laptops requiring SODIMM DDR5 memory.
  • Compatibility with 12th Gen Intel Core laptop processors.

Think twice if

  • Users needing more than 8GB for demanding modern workloads or heavy multitasking.
  • DDR4-enabled laptops.

The numbers that matter

  • 8GB RAM Size, DDR5 technology, 4800MHz speed
  • 4.8 out of 5 stars from 7,052 ratings
  • Compatible with 12th and 13th Gen Intel Core and AMD Ryzen 6000 Series laptops
  • CL40 latency at 4800MHz gives 16.67ns true latency
  • Item Weight: 0.29 Ounces

What the evidence says

ItemValue
RAM Size8 GB
Computer memory size8
Memory Speed4800 MHz
PC speedPC5-38400
Form FactorSO-DIMM
Pin count262-pin
Voltage1.1V
Operating Voltage1.1 V
Column Address Strobe Latency40
True Latency16.67 ns
Item Weight0.29 Ounces
CompatibilityUnlock the potential of your 12th Gen Intel Core laptop processors
CompatibilityCompatible only with DDR5-enabled laptop, not DDR4-enabled laptops
Compatibility12th and 13th Gen Intel Core laptops and AMD Ryzen 6000 Series laptops
Marketplace Rating4.8 / 5
Total Ratings7,052
Reviewer commentInstallation took all of 2 minutes and was recognised immediately without any BIOS tweaks.
Reviewer commentWorks flawlessly, upgraded from 2x8 too this, 2x16GB exellent
Reviewer commentGreat value for money

Where buyers hesitate

Is the Crucial RAM 8GB DDR5 4800MHz CL40 Laptop Memory CT8G48C40S5 compatible?

Yes, it is compatible with DDR5-enabled laptops, specifically 12th/13th Gen Intel Core and AMD Ryzen 6000 Series. The listing and usage facts confirm compatibility with DDR5-enabled laptops, including 12th Gen Intel Core processors and AMD Ryzen 6000 Series. It is compatible only with DDR5-enabled laptops, not DDR4-enabled laptops.

Is Crucial DDR5 RAM good for gaming?

While DDR5 offers higher bandwidth, 8GB capacity may limit gaming performance in modern titles. The listing states that this RAM can help you 'Game at higher frame rates, run demanding software, and power through heavy workloads'. However, a community report notes that 8GB is a tight capacity for modern workloads, suggesting 16GB is a more sensible minimum. This means while the speed is beneficial, the total capacity could be a bottleneck for demanding games.

How to install Crucial DDR5 RAM?

Installation is straightforward, typically taking a few minutes with no BIOS tweaks needed. One user reported, 'Installation took all of 2 minutes and was recognised immediately without any BIOS tweaks'. Another mentioned it took 'about 10 mins to intsall and works great!'. This suggests a simple plug-and-play process for most users.

What is the real latency of Crucial DDR5 RAM 8GB 4800MHz CL40?

The true latency is 16.67ns at 4800MHz CL40, which is considered baseline for DDR5. The listed CL40 at 4800MHz translates to a true latency of 16.67ns. This is described as baseline DDR5 performance and not particularly impressive. The listing itself provides CL40.

Why we judge it this way

The primary question for many considering this Crucial DDR5 RAM is whether it's faulty or incompatible, particularly if experiencing issues. The available buyer reviews are overwhelmingly positive, with users reporting flawless operation, noticeable performance boosts, and straightforward installation that takes just minutes. For instance, one reviewer stated, 'Installation took all of 2 minutes and was recognised immediately without any BIOS tweaks'. This strong user feedback suggests that outright faults or widespread incompatibility with supported systems are unlikely.

However, a significant consideration arises from community discussions and the product's 8GB capacity. One community report explicitly states, '8GB is a tight capacity for modern workloads; 16GB is the sensible minimum for most users'. While the DDR5 speed of 4800MHz is beneficial for general tasks and older systems, this 8GB limitation could be a deal-breaker for users running demanding software, heavy multitasking, or modern games, potentially leading to performance bottlenecks that might be mistaken for faults or incompatibility.

The listing details and usage facts confirm compatibility with DDR5-enabled laptops, specifically mentioning 12th Gen Intel Core processors and AMD Ryzen 6000 Series. It also clearly states it's not for DDR4-enabled laptops, a crucial point for potential buyers. The memory speed of 4800MHz with CL40 latency is noted as baseline for DDR5, meaning it performs as expected for its class but isn't a top-tier speed demon. The overall marketplace rating of 4.8 out of 5 stars from over 7,000 reviews further supports its general reliability and user satisfaction.

Therefore, this Crucial DDR5 8GB RAM is a solid choice for upgrading compatible laptops where 8GB is sufficient for the user's needs, offering good value and performance for the price. Users requiring more memory for intensive tasks should consider higher capacity modules. Potential buyers must verify their laptop supports DDR5 and has an SODIMM slot. The evidence base is strong, consisting of numerous positive reviews and clear specifications, with the main limitation being the inherent capacity for demanding modern use cases.

The strongest objection we found

8GB is a tight capacity for modern workloads; 16GB is the sensible minimum for most users.

Frequently Asked Questions

What this page does not answer

  • How does Crucial DDR5 RAM 8GB 4800MHz compare to Corsair Vengeance SODIMM DDR5 RAM?
  • What is the maximum RAM capacity my laptop supports?
  • How to check if my laptop supports DDR5 RAM?
  • Corsair Vengeance SODIMM DDR5 RAM wins on brand reputation/perceived performance
  • Crucial DDR5 RAM 16GB 4800MHz SODIMM, Laptop Computer Memory
  • Crucial DDR5 RAM 32GB Kit (2x16GB) 5600MHz SODIMM

How this analysis was built

Analysis of listing specifications, buyer reviews, and community forum discussions to assess reliability, compatibility, and performance. Marketplace rating and user feedback were cross-referenced with product details.

Sources and verification

Everything on this page traces back to the listing published for this product on Amazon.co.uk. At the analysis date that listing showed 4.8 stars across 7,052 reviews. The write-up works from 8 verified data points, drawn from buyer reviews for this product. Analysis generated on 2026-10-29.

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Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5

£145.86

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