So, a DDR3 memory module won’t fit in a DDR4 slot And a DDR4 stick is incompatible with a DDR3 slot Besides the physical differences, DDR3 and DDR4 RAM differ in voltages. DDR3 uses a voltage of 1.5V (or 1.35V for DDR3L variant). Crucial 16GB 204-Pin DDR3 SO-DIMM DDR3L 1600 (PC3L 12800) Laptop Memory Model CT204864BF160B. CAS Latency: 11; Voltage: 1.35V; Buffered/Registered: Unbuffered; Features: CT204864BF160B is a single 16GB DDR3L 1.35V Notebook module that operates at speeds up to 1600 MT/s and has a CL11 latency. It is dual voltage and can operate at 1.35V or 1.5V.

1. A-Tech 16GB (2x8GB) DDR3 / DDR3L 1600MHz SODIMM PC3L-12800 2Rx8 1.35V CL11 Non-ECC Unbuffered 204-Pin SO-DIMM Notebook Laptop RAM Memory Upgrade Kit 4.8 out of 5 stars 1,152 $56.99 $ 56. 99 $69.99 $69.99.
2. TECMIYO 8GB Kit (2 x 4GB) DDR3L-1600 SODIMM, DDR3 PC3-12800 Non ECC Unbuffered 1.35V/1.5V CL11 2RX8 Dual Rank for Laptops Notebook 4.7 out of 5 stars 914 $32.99 $ 32.
3. G.SKILL Series 16GB (2x8GB) 204-Pin DDR3 SO-DIMM DDR3L 1600 Laptop Memory 5 out of 5 stars (27) 27 product ratings - G.SKILL Series 16GB (2x8GB) 204-Pin DDR3 SO-DIMM DDR3L 1600 Laptop Memory.

Are DDR3 and DDR4 laptop memory (RAM) compatible? That’s a common question when it comes to memory upgrades. For instance, you bought a new laptop with DDR4 RAM and want to add more memory to it by inserting a DDR3 RAM module from your older laptop. You wonder if that’s possible. Unfortunately, that can’t be done. DDR3 and DDR4 laptop memory are not compatible / interchangeable.

First of all, a DDR3 laptop RAM module can’t physically fit into a DDR4 laptop RAM slot and vice versa. Notches on the connectors of memory sticks are on different places. The same applies to corresponding bumps in the RAM slots on notebook’s motherboards. Also, the number of pins doesn’t match. A DDR3 laptop memory module has 204 pins, whereas DDR4 has 260. Finally, DDR3 memory is a bit shorter than DDR4 – 2.66 versus 2.74 inches.

So, a DDR3 memory module won’t fit in a DDR4 slot…

Ddr3l So-dimm Slots Download

And a DDR4 stick is incompatible with a DDR3 slot…

Besides the physical differences, DDR3 and DDR4 RAM differ in voltages. DDR3 uses a voltage of 1.5V (or 1.35V for DDR3L variant). DDR4 uses 1.2V. It is more power efficient and generally faster, but doesn’t noticeably improve overall performance nor battery life of notebooks.

Ddr3l 1600mhz Sodimm

Note: If you see “SODIMM” in specs of both DDR3 and DDR4 laptop memory, that doesn’t mean they are compatible. SODIMM only means they are small memory modules commonly used in laptops and some small form factor PCs, as opposed to physically much bigger DIMM memory used in traditional desktop computers. As a side note, DDR3 and DDR4 DIMMs aren’t compatible neither.