DDR2 PC2-6400 (800MHz) 7-way Memory Showdown


OCZ Technology PC2-6400 Memory

The OCZ PC2-6400 Platinum EB series offers improved memory bandwidth and lower latencies (4-3-3-8) than standard DDR2-800 modules, and is offers teh tightest timings out of the seven brands we tested. The Enhanced Bandwidth (EB) optimized SPD timings help stream more data without interruption by offering the lowest possible page access times while reducing the strain on the DRAM I/O logic making this memory ideal for video editing and intensive gaming and a must have for enthusiasts who want the best of the best. OCZ offers the PC2-6400 Platinum EB memory line in 512MB modules and 1GB (2×512) Dual Channel Kits. For this review we used teh 1GB dual channel kit with a part number of OCZ28001024EBDCPE-K. OCZ modules are tested and carry a limited lifetime warranty.

OCZ EB Platinum PC2-6400 Memory Modules

Once I removed the heat spreaders I found that OCZ was using Micron “Fat Body” D9 memory IC’s for their EB Platinum PC2-6400 (OCZ28001024EBDCPE-K) high speed memory modules. The memory was also noted as being single-sided memory modules (containing FBGA components on only one side) since they are 512MB per module. If you order densities of 1GB or more they will be double sided. Each OCZ module has sixteen 64M x 8-bit DDR2 FBGA memory IC’s. The Printed Circuit Board (PCB) ID was BP MLL E186014 B62URCA, which is made by Brain Power Co. and is the same PCB that SybcMax is using on their modules, but with Elpida IC’s.

OCZ EB Platinum PC2-6400 Memory IC's

Decoding The IC:

For those of you that want to know the inside scoop on everything we broke down what the codes on the IC mean below. If you would like to do this on one of your personal modules or to double check us you can find the most current data sheet found right here on the Micron site. After looking up the our FBGA code (D9DQW) we were able to determine that our IC’s were part number MT47H64M8BT-37EA. These IC’s are rated at CL4 at 533MHz and are a different production run than some of the other Micron IC’s we are seeing other companies use. To reach the tight 4-3-3-8 timings that these modules come rated at users must increase the memory voltage in their BIOS to 2.1V, which is above the default settings.

Micron MT47H64M8BT-37E:A




Micron Technologies


64 Meg x 8


92-ball FBGA


3.75ns @ CL4 (DDR2-533)


Revision A IC’s

Key Features:

  • Memory amount: 2 x 1024MB
  • IC Brand: Micron
  • 800MHz (PC2-6400) Unbuffered non-ECC DDR2 Modules
  • CAS latency: 4 clock cycles
  • RAS precharge: 3 cycles
  • RAS active to precharge: 8 cycles
  • Platinum heat spreader for thermal diffusion
  • Latency: 4-3-3-8
  • 2.1V
  • Lifetime Warranty

The OCZ Technology EB Platinum PC2-6400 memory modules can be found for $135.53 (Current Pricing) in individual 512MB modules and $257.97 (Current Pricing) for the 1GB kit that we tested in this review.

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