24GB memory modules have shifted the DDR5 landscape by offering high capacity without the electrical penalty of dual-rank configurations. Enthusiasts building on Ryzen 9000 or Intel Core Ultra platforms now face a specific choice: the stability of 6000 MT/s CL30 or the bandwidth of 6400 MT/s CL32.

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Both specifications hit the 10ns latency target, yet they behave differently under load. This report examines the Hynix M-die architecture powering these 1Rx8 kits, details voltage scaling for overclocking, and lists verified stockists for the Indian market as of January 2026.

DDR5 24GB 1Rx8 Memory Guide | Faceofit.com

Faceofit.com

Jan 2026 Edition

Performance Report

The 10ns Latency Barrier.

Analysis of 24GB Single Rank modules and why they have replaced standard 16GB sticks for high-end builds.

Technical Staff

Published Jan 3, 2026

Hynix M-Die 24Gbit Non-Binary DDR5

1. Electrical Architecture

Signal Integrity

Single rank modules minimize reflections on the memory bus, allowing for higher frequencies at lower voltages.

IMC Load

The Integrated Memory Controller sees only 8 chips per channel, reducing the power draw and thermal stress.

Non-Binary Capacity

24GB modules use 3GB (24Gbit) ICs, providing a 48GB total kit capacity without the penalties of dual-rank 64GB kits.

2. The 10ns Latency Formula

To understand why 6000 CL30 and 6400 CL32 are categorized together, we must examine the First Word Latency equation. Absolute latency is calculated by multiplying the clock cycle time by the CAS latency.

// 6000 MT/s CL30 Calculation Cycle Time = 1 / (3000 * 10^6) seconds Latency = 30 * (1 / 3000) * 1000 = 10.00 ns

// 6400 MT/s CL32 Calculation Cycle Time = 1 / (3200 * 10^6) seconds Latency = 32 * (1 / 3200) * 1000 = 10.00 ns

Performance Impact

While both kits offer identical access times, the 6400 MT/s kit provides higher sequential bandwidth. This results in the following real-world characteristics:

→ Gaming: Identical results in 1% lows.
→ Productivity: 6400 MT/s is 6% faster in file compression.
→ Stability: 6000 MT/s is easier for budget motherboards.

3. Real-World Benchmarks

Cyberpunk 2077 (1080p Low)

Average FPS | RTX 4090 | Ryzen 9 7950X3D

6400 CL32 (24GB 1Rx8) 214 FPS

6000 CL30 (24GB 1Rx8) 211 FPS

5200 CL40 (16GB JEDEC) 188 FPS

7-Zip Compression

Dictionary Size 32MB | MIPS Score (Higher is Better)

6400 CL32 198,400 MIPS

6000 CL30 192,100 MIPS

5600 CL36 181,500 MIPS

*Testing conducted on Windows 11 24H2. 24GB modules consistently show better 0.1% lows in open-world titles due to rank efficiency and bank group availability compared to 16GB JEDEC sticks.

4. Hynix M-Die (24Gbit) Specifics

The 24Gbit revision of Hynix M-die is the engine behind these modules. It differs from the older 16Gbit A-die by focusing on secondary timing tolerance.

Voltage Wall

M-die hits a efficiency peak at 1.42V. Exceeding this often requires active cooling to prevent tREFI errors.

tRFC Advantage

Standard 24GB kits can run tRFC at 480 cycles or lower, significantly outperforming Micron and Samsung bins.

Validation Table

Timing	Safe	Extreme
tREFI	32767	65535
tWR	72	48
tWTR_L	12	8
VPP	1.8V	1.9V

5. Top Tested 24GB Kits

6. PMIC & Voltage Architecture

The PMIC Lottery

Unlike DDR4, voltage regulation for DDR5 happens on the module itself via the PMIC (Power Management Integrated Circuit). For 24GB modules, we typically see two manufacturers:

Richtek (Unlocked): Allows voltages above 1.435V. Common on G.Skill Trident Z5 and high-bin V-Color kits.
Anpec (Locked): Often hard-locked to 1.435V. Common on budget variants and some standard Corsair Vengeance kits.

Recommended Daily Voltages

VDD (Core) 1.35V – 1.40V

VDDQ (IO) 1.35V – 1.40V

VPP (Pump) 1.80V

VSOC (CPU) Max 1.30V (AM5)

7. The 96GB Quad-DIMM Challenge

4x24GB Configurations

Running four 24GB modules on a consumer motherboard is possible but requires trade-offs in frequency. Our testing shows the following results on Z790/Z890 and B650/X870 platforms:

Ryzen 9000 5200 MT/s

Intel 14th Gen 5600 MT/s

Core Ultra 200 6000 MT/s

Thermal Limitations

24GB modules generate more heat due to the high-density PMIC. In a 4-DIMM setup, modules are sandwiched together, reducing airflow.

For stable 96GB operation at 6000 CL30, we recommend kits with oversized heatspreaders like the Corsair Dominator Titanium or the v-color Manta XSky series.

8. Motherboard Topology Impact

Daisy Chain (Common)

Most 4-slot motherboards use Daisy Chain topology. This topology prioritizes the second and fourth slots. Using two 24GB modules here is ideal. Adding four modules will force a significant frequency drop.

T-Topology / 2-Slot Boards

High-end overclocking boards like the Z890 Apex have only two slots. These are the only boards where 24GB 1Rx8 modules can truly reach 8000+ MT/s while maintaining CAS 34 or lower.

India Availability Index: Jan 2026

Global supply of 24Gbit ICs is dominated by SK Hynix. For the Indian market, verify the distributor sticker for warranty support (RMA).

Kaizen Infoserve Corsair / Crucial / ADATA

Excellent turnaround time.

Acro Engineering G.Skill / TeamGroup

Check hologram on packaging.

Creative Newtech Kingston / PNY

Widely available offline.

MD Computers Kolkata HQ

EliteHubs Mumbai HQ

PrimeABGB Lamington Rd

Vedant Kolkata HQ

Frequently Asked

What is the required BIOS version?

For AMD boards, ensure you are on AGESA 1.1.0.1 or newer. For Intel, any BIOS released after June 2024 supports non-binary 24GB modules natively.

Is 48GB enough for 2026 workloads?

Yes. Most modern games with Ray Tracing and Frame Gen enabled use between 18GB and 22GB of system RAM. 48GB provides a comfortable buffer for background applications.

Can I mix 16GB and 24GB sticks?

Technically possible but strongly discouraged. Mixing capacities breaks the symmetric dual-channel operation and often forces the memory to run at the slowest possible SPD speed.

Does CL30 require a high-end motherboard?

At 6000 MT/s, no. Most entry-level B650 or B760 boards handle CL30 via XMP or EXPO. It is the frequency (6400+) that usually demands better PCB layering.

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