Sabrent Rocket 64GB (4x16GB) 4800MHz DDR5 Memory Kit Review

Memory by stefan @ 2022-07-12

While operating with two Rocket DDR5 modules of 16GB each, each running overclocked at 6000MHz it was quite an easy and straightforward task, we cannot say the same when all four slots are populated. In compatibility mode, as Intel recommends on the Z690 platform, 4000MHz is guaranteed and this is the speed the 64GB kit operates with in automatic mode. For running at 4800MHz, we needed a bit of extra voltage tweaking concerning VSA, VDDQ and VDD2 but in the end we could validate stability with TM5 and all benchmarks we ran afterwards have completed without any errors.

Introduction

 

At first, we would like to thank Sabrent for offering a sample of their 64GB (4x16GB) 4800MHz DDR5 Memory Kit for testing and reviewing.

 

 

About Sabrent:

 

“At Sabrent, we create products that help people realize the power of technology and make people’s lives easier and better.

We have a proven track record to consumers and distribution partners, who are part of the rapidly growing Sabrent family.

 

Deliver the latest technology at an affordable price.

offer a broad product selection, specializing in items that sell.

Maintain large inventory levels and provide same day shipping.

Attractive retail packaging.

Instant live customer service and technical support, including remote access sessions.

No-nonsense product exchanges.

 

Sabrent’s commitment is to offer the latest technology and the highest quality consumer electronic products at an affordable cost to everyone. Since its founding, Sabrent has consistently delivered to market a full line of computer peripherals and accessories that incorporate style, quality and the latest technologies available.”

 

Product Features, Specifications

Product Features:

 

Up To Double the Bandwidth

DDR5 allows for up to double the bandwidth of DDR4, reducing a memory bottleneck. Content creation, gaming, and more will benefit from these rocket-fast speeds.

High Performance

DDR5 has other internal improvements that lead to better overall performance. Make the most of your memory and reach the next level in gaming with these new technologies.

Higher Capacity

DDR5 can have up to four times the capacity in the same space, making sure you never run out of memory again. More is better, especially if you’re juggling sixteen cores or more.

Compatible & Reliable

DDR5 also has improvements to error correction, making sure your experience is consistent and reliable. Further, our memory meets all JEDEC memory standards, so it’s easier than ever to upgrade and be on your way. Installation is always simple and easy, too.

 

Product Specifications:

 

SKU: 4x SB-DR5U-16G

Dimensions

Length: 5.26 in

Width: 1.25 in

Height: 0.13 in

Weight: 0.7 oz

What's in the Box?

DDR5 U-DIMM Memory Module.

User Manual

 

Packaging, A Closer Look

Last time we have reviewed a Rocket 32GB (2x16GB) 4800MHz DDR5 memory setup from Sabrent, which has proven quite overclockable on our platform composed of a retail 12700K processor and the EVGA Z690 CLASSIFIED motherboard. To be more exact, we were able to run the kit at 6000MHz by simply raising the stock voltage from 1.1V to 1.25V and keeping the stock timings. We have asked Sabrent to supply and extra kit of 2x16GB to see how the setup behaves when all memory slots have been occupied, for a total of 64GB of RAM!

 

The kit has arrived in separate packaging for each module, as the last time:

 

 

 

The outside layer does house an additional compact box, sporting the Rocket brand colors but also the specification that it was meant to operate at 4800MHz:

 

 

 

The top cover opens like a book, being held with magnetic force; the memory module is held secure inside foam material and we will also note a Memory Module Installation Guide document:

 

 

 

The guide does fully explain the installation process in order not to end up with a non-functional setup because the modules were not pressed in the slot all the way:

 

 

 

The 16GB modules do carry the Rocket brand color scheme and even the cooling system type is retained (a thin sheet of copper as a heatsink):

 

 

 

Due to the thin aspect of the modules, there is enough space between it even when we do have four installed on the motherboard, for allowing the air to flow through:

 

 

 

The operating frequency of the 16GB modules is noted on the left side:

 

 

 

The capacity writing is available on the right:

 

 

 

On the back we do have a different design, with the Rocket logo in the middle on a black background:

 

 

A QR code is present on the left, with the module code name:

 

 

Here is a photo of the modules, when installed inside the testbench:

 

 

 

Test Setup and Test Results Part I

Test Setup

 

CPU: Intel i7-12700K @ Stock

CPU Cooler: be quiet! Pure Loop 240mm AIO

Motherboard: EVGA Z690 CLASSIFIED

RAM: currently tested kit

Video: XFX Radeon RX 5700XT Ultra THICC III

Power Supply: Cooler Master 850W

SSD: Silicon Power US70 1TB PCIe 4.0

Case: Cooler Master ATCS 840

 

The pre-programmed timings and frequencies can be also found by using AIDA64; the DRAM IC manufacturer is listed as SK hynix:

 

 

 

As you have probably noted from the first screenshot, these modules do not come with a pre-loaded XMP profile, so the motherboard will automatically go for the most compatible timing set after the first boot-up. With four modules installed, our Z690 CLASSIFIED board has loaded the RAM at 4000MHz and not 4800 as we have had hoped. In order to boot at 4800MHz, we have had to set VSA at 1.1V, VDDQ at 1.25V and VDD2 at 1.25V, otherwise the board did remain stuck in a continuous training loop. Here is the validation:

 

 

We tried to also boot at 5200MHz but unfortunately after working for several hours doing tweaks, the system did remain stuck in training mode.

 

Test Results

 

SuperPI XS 1.5 2MB

 

 

GeekBench 4

 

 

Blender Ryzen Rendering

 

 

 

Test Results Part II

 

AIDA64 Bandwidth

 

 

CineBench R15 Rendering

 

 

HWBOT X265 4K Encoding

 

 

PCMark 8

 

 

Ashes of Singularity - CPU Focused

 

 

PCMark 10

 

 

 

Conclusive Thoughts

While operating with two Rocket DDR5 modules of 16GB each, each running overclocked at 6000MHz it was quite an easy and straightforward task, we cannot say the same when all four slots are populated. In compatibility mode, as Intel recommends on the Z690 platform, 4000MHz is guaranteed and this is the speed the 64GB kit operates with in automatic mode. For running at 4800MHz, we needed a bit of extra voltage tweaking concerning VSA, VDDQ and VDD2 but in the end we could validate stability with TM5 and all benchmarks we ran afterwards have completed without any errors.

 

We have tested all sticks separately and confirmed that these could do 6000MHz at 1.25V with 40-40-40-76 timings, but we hit a hard wall when we tried 5200MHz with four modules installed; depending on the motherboard, your experience may be different, but in any case, if you need more capacity than 32GB and high speeds, we recommend going for a 2x32GB kit instead. Pumping more voltage in terms of the memory controller will in the end reduce the life expectancy of the CPU, a detail we are not particularly happy with.

 

Sabrent Rocket 64GB (4x16GB) 4800MHz DDR5 Memory Kit is Recommended for:

 

 

We would like to thank again to Sabrent for making this review possible!

 

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