OWC 2666DDR4S64P 64GB DDR4-2666
This 64GB DDR4 kit delivers a straightforward capacity upgrade with JEDEC-compliant 2666 MT/s CL19 operation at 1.2V, backed by a lifetime warranty and advanced replacement program. Its broad compatibility spans 2018-2020 iMacs and Mac minis alongside mainstream PC laptops, making it a reliable drop-in solution for aging systems. This kit is best for iMac or Mac mini users who need to extend the life of their machine for heavy multitasking and memory-intensive productivity workloads.
Capacity 64GB
Kit 2 x 32GB
Memory DDR4
Speed 2666 MT/s
CAS Latency CL19
Form Factor SODIMM
58 Overall Score
Price £619
Snapshot
Pros & Cons
Pros
- Strong capacity (90th percentile) 90th
- Strong social proof (86th percentile) 86th
Cons
- Below average affordability (27th percentile)
The proof
Performance
Specifications
Full Specifications
Memory
| Type | DDR4 |
| Form Factor | SODIMM |
| Total Capacity | 65536 |
| Modules | 2 |
| Per Module | 32768 |
| Pins | 260 |
Performance
| Speed | 2666 |
| CAS Latency | 19 |
| Voltage | 1.2 |
Class
| ECC | No |
| Registered | No |
Features
| RGB | No |
| Heat Spreader | No |
vs Competition
| Spec | OWC 2666DDR4S64P | Kingston FURY Beast KF564C32BWEAK2-64 | G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG | Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 | Crucial Pro Overclocking CP2K16G64C32U5B | KLEVV CRAS V RGB KD5KGUD80-60A300G-BLACK |
|---|---|---|---|---|---|---|
| Capacity | 64GB | 64GB | 64GB | 64GB | 32GB | 64GB |
| Kit | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 16GB | 2 x 32GB |
| Memory Type | DDR4 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 |
| Speed Mts | 2666 | 6400 | 6000 | 6400 | 6400 | 6000 |
| Cas Latency | CL19 | CL32 | CL26 | CL32 | CL32 | CL30 |
| Form Factor | SODIMM | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Ecc | false | false | false | false | false | false |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Feature | Latency | Capacity | Social Proof | Affordability |
|---|---|---|---|---|---|---|
| OWC 2666DDR4S64P | 37.4 | 45.2 | 36.6 | 89.9 | 85.6 | 27.4 |
| Kingston FURY Beast KF564C32BWEAK2-64 Compare | 94.7 | 89.5 | 87.7 | 89.9 | 92.3 | 7.6 |
| G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Compare | 87.4 | 89.5 | 99.1 | 89.9 | 74.2 | 3.4 |
| Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 Compare | 94.7 | 89.5 | 87.7 | 89.9 | 97.8 | 6.8 |
| Crucial Pro Overclocking CP2K16G64C32U5B Compare | 94.7 | 74.8 | 87.7 | 70.9 | 85.6 | 28 |
| KLEVV CRAS V RGB KD5KGUD80-60A300G-BLACK Compare | 87.4 | 89.5 | 87.7 | 89.9 | 85.6 | 8.3 |
Price
Value & Pricing
From £619
Amazon 1 offer From £619
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
