Kingston ValueRam 8GB (DDR5-6400, CL52) Desktop RAM

Description

What Is a CUDIMM — And Why It Matters

This is the only CUDIMM in this memory range, and buyers must understand what that means before purchasing. A CUDIMM (Clocked Unbuffered DIMM) differs from a standard UDIMM (Unbuffered DIMM) in one critical way: it includes an integrated Clock Driver (CKD) component on the module. The KVR64A52BS6-8 contains four 1G×16-bit FBGA DRAM components and one Clock Driver (CKD) — the CKD regenerates the DDR5 clock signal on-module, improving signal integrity at high frequencies like 6400MT/s and enabling more reliable operation at speeds that would challenge standard unbuffered DDR5 architectures.

CUDIMMs are designed for Intel’s newer platform generations (Arrow Lake and later) that support the CUDIMM standard, and are not universally compatible with all DDR5 motherboards. Before purchasing, verify that your specific motherboard and CPU explicitly support CUDIMM — it is not the same as standard DDR5 UDIMM compatibility.

⚠️ CUDIMM requires CUDIMM-compatible motherboard and CPU: This module will not function in all DDR5 motherboards. Verify that your specific board and processor explicitly support CUDIMM before purchasing. Most existing DDR5 Z690/B660/Z790/X670E boards support standard UDIMM only — CUDIMM support is primarily found on Intel Arrow Lake (Z890/B860) and later platforms.

Performance Profile

The KVR64A52BS6-8 operates at 6400MT/s with CAS latency 52, adhering to JEDEC industry standards for consistent performance. Functioning at 1.1V, it contributes to system power efficiency as an unbuffered, non-ECC DIMM suitable for mainstream consumer-grade motherboards. No XMP or EXPO profile is present — rated 6400MT/s speed is achieved natively via JEDEC specification without any BIOS adjustment.

⚠️ No XMP on this module: DDR5-6400 is achieved via JEDEC specification natively — no BIOS tuning required on compatible CUDIMM platforms.

ValueRAM Pedigree & Build

ValueRAM is Kingston’s industry standard memory line, delivering award-winning performance and legendary Kingston reliability. The module’s physical design is a standard 288-pin DIMM at 31.25mm height, ensuring broad compatibility with various cases and CPU coolers, and its construction conforms to RoHS compliance. No heat spreader, no RGB — classic ValueRAM focus on reliability and broad compatibility in a clean, compact form.

Key Highlights

• Capacity: 8GB (1×8GB)
• Type: DDR5 CUDIMM | 288-pin (Desktop) — CUDIMM, not UDIMM
• Speed: 6400MT/s (PC5-51200)
• Timings: CL52
• Rank / IC: 1Rx16 single rank; 4× 1G×16-bit FBGA + Clock Driver (CKD)
• Voltage: 1.1V
• Standard: JEDEC — no XMP, no EXPO
• On-Die ECC: Yes (DDR5 standard)
• ECC: Non-ECC unbuffered
• RGB: None
• Module Height: 31.25mm
• Standards: RoHS compliant
• Platform: CUDIMM-compatible DDR5 platforms only (Intel Arrow Lake Z890/B860 and later)
• Warranty: Lifetime

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