The Precision™ M4700 & M6700 system supports dual-channel DDR3 SDRAM with memory speeds of 1600MHz and 1866 MHz. The memory offers a significant increase of memory performance over previous platforms.
The memory solution is implemented in a dual-channel configuration, allowing the system to have twice the memory bandwidth while using the same memory technology.
Memory modules must be installed as a perfectly matched pair to take advantage of the dual-channel memory bus. If not a matched pair, the system's memory bus operates in a single-channel configuration.
Comparison
Memory
Memory Clock
Cycle Time
I/O bus clock
Data rate
Module name
Peak transfer time
DDR3 - 1600
200
5
800
1600
12800
12800
DDR3 - 1866
233
4.3
933¼
1866
14933¼
14933¼
Memory Configuration
Precision™ M4700 & M6700 has 4 user-accessibleSODIMM (Small Outline Dual In-Line Memory Module) sockets, two of the slots can be accessed after removing the base cover and another 2 slots are underneath the keyboard.
NOTE: Two DIMM slots are available for Intel Core i5 and i7 Dual Core processors. Four DIMM slots are available for Intel Core i7 Quad Core and i7 Quad Extreme processors.
Speed (MHz)
Configuration Options (DIMMS)
Maximum Amount (GB)
1600
1GB, 2GB, 4GB or 8GB
32
1866
2GB or 4GB
16
Type
DDR3
Speed
1600 MHz and 1866 MHz (faster UI)
Connectors:
Intel Core i5 and i7 Dual Core processors
two DIMM slots
Intel Core i7 Quad Core and i7 Quad Extreme processors
four DIMM slots
Capacity
1 GB, 2 GB, 4 GB and 8 GB
Minimum Memory
2 GB
Maximum Memory
Intel Core i5 and i7 Dual Core processors
16 GB
Intel Core i7 Quad Core and i7 Quad Extreme processors
Jesse L (retired)
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Posted April 23rd, 2018 04:00
horizonbrave,
Below are the memory specs.
Memory

The Precision™ M4700 & M6700 system supports dual-channel DDR3 SDRAM with memory speeds of 1600MHz and 1866 MHz. The memory offers a significant increase of memory performance over previous platforms.
Comparison
Memory Configuration
Precision™ M4700 & M6700 has 4 user-accessible SODIMM (Small Outline Dual In-Line Memory Module) sockets, two of the slots can be accessed after removing the base cover and another 2 slots are underneath the keyboard.
Two DIMM slots are available for Intel Core i5 and i7 Dual Core processors.
Four DIMM slots are available for Intel Core i7 Quad Core and i7 Quad Extreme processors.
Speed
(MHz)
Configuration Options
(DIMMS)
Maximum Amount
(GB)
1GB, 2GB, 4GB or 8GB
2GB or 4GB
Jesse L (retired)