Page 2 - A Closer Look, Test System
The Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB, being a part of the latest consumer DDR5 line from the company, has no heatspreaders at all. Therefore, it is guaranteed to be compatible with CPU coolers of all shapes and sizes. If you are concerned about heat issues due to the lack of heatspreaders, there simply is nothing to worry about. For pretty much all memory modules, unless run at a voltage significantly over designed voltages, heatspreaders are not a requirement. All you are missing out on are purely cosmetic when placed in a windowed chassis.
As you can see in my photo above, the Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB has a very nice black PCB. We can also spot the power management integrated circuit, commonly abbreviated as PMIC, near the center. These are CUDIMMs, so next to the PMIC is a clock driver used to regenerate the clock cycle for improve stability, especially at higher frequencies.
A specification label is found on one side of both DDR5 memory modules. It lists the CT2K16G64C52CU5 model number, bandwidth, CAS latency, voltage, and the DIMM's memory capacity. The Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB is made in Malaysia, hence why it was shipped to us from there directly.
Here is a shot at the back of the Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB. It is completely blank, because the modules are single-sided. There is nothing else to really talk about here, so let us zoom in on the memory chips on the next page.
A closer look at the memory chips on the Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB dual channel memory kit. The photo above should be quite clear -- it says "D8DKT" on each IC. These are Micron-manufactured chips identified as MT60B2G8RZ-64B:D decoded from the FBGA inscription, with eight 2GB chips on one side for a total of 16GB on each DIMM. As mentioned on the previous page, these RAM modules run at a frequency of DDR5-6400 with 52-52-52-103 latencies. They operate at the base DDR5 voltage of 1.1V. Here are the listed features for the ICs, as obtained from Micron's website:
• VDD = VDDQ = 1.1V (NOM)
• VPP= 1.8V (NOM)
• On-die, internal, adjustable VREF generation for DQ, CA, CS
• 1.1V pseudo open-drain I/O
• TC maximum up to 95°C
- 32ms, 8192-cycle refresh up to 85°C
- 16ms, 8192-cycle refresh at >85°C to 95°C
• 32 internal banks (x4, x8): 8 groups of 4 banks each
• 16 internal banks (x16): 4 groups of 4 banks each
• 16n-bit prefetch architecture
• 1 cycle/2 cycle command structure
• 2N mode
• All bank and same bank refresh
• Multi-purpose command (MPC)
• CS/CA training mode
• On-die ECC (bounded fault)
• ECC transparency and error scrub
• Decision feedback equalization (DFE)
• Loopback mode
• Command-based non-target (NT) nominal, DQ/DQS park, and dynamic WR on-die termination (ODT)
• sPPR and hPPR capability
• MBIST/mPPR capability
• Per-DRAM addressability
• JEDEC JESD-79.5 compliant
Our test configuration is as follows:
CPU: Intel Core Ultra 7 265K
CPU Cooling: Noctua NH-D15 G2 HBC
Motherboard: ASUS ProArt Z890-Creator WiFi
Graphics: Integrated
Chassis: be quiet! Light Base 600 LX
Storage: Crucial T500 2TB, Crucial P310 2280 2TB (Heatsink Version)
Power: Seasonic PRIME TX-1300 ATX 3.0 1300W
Operating System: Microsoft Windows 11 Pro
Compared Hardware:
- Crucial CT2K16G64C52CU5 DDR5-6400 2x16GB @ DDR5-6400 52-52-52-103
- Corsair Vengeance RGB DDR5-8400 2x24GB @ DDR5-8400 40-52-52-135
- Kingston Fury Renegade DDR5-8400 2x24GB @ DDR5-8400 40-52-52-132
- XPG Lancer CUDIMM RGB DDR5-8400 2x24GB @ DDR5-8400 40-52-52-130
Page Index
1. Introduction, Packaging, Specifications
2. A Closer Look, Test System
3. Benchmark: AIDA64 CPU
4. Benchmark: AIDA64 FPU
5. Benchmark: AIDA64 Memory
6. Benchmark: PCMark 10
7. Benchmark: 3DMark
8. Benchmark: PassMark PerformanceTest 11
9. Benchmark: SuperPI 1M, Cinebench 2024
10. Overclocking and Conclusion
