Crucial CT4K16G4DFD8266
Capacity 64GB
Kit 4 x 16GB
Memory DDR4
Speed 2666 MT/s
CAS Latency CL19
Form Factor UDIMM
ECC Yes
59 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong capacity (90th percentile) 90th
- Strong social proof (77th percentile) 77th
- Strong feature (73rd percentile) 73rd
Cons
The proof
Performance
Specifications
Full Specifications
Memory
| Type | DDR4 |
| Form Factor | UDIMM |
| Total Capacity | 65536 |
| Modules | 4 |
| Per Module | 16384 |
| Pins | 288 |
| Rank | 2Rx8 |
Performance
| Speed | 2666 |
| CAS Latency | 19 |
Class
| ECC | Yes |
| Registered | No |
vs Competition
| Spec | Crucial CT4K16G4DFD8266 | Kingston FURY Beast KF564C32BWEAK2-64 | G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG | Corsair VENGEANCE RGB CMH64GX5M2B6400C32 | KLEVV CRAS V RGB KD5BGUA80-60A300J | Team Group T-Force XTREEM ARGB FF9D548G8000HC38EDC01 |
|---|---|---|---|---|---|---|
| Capacity | 64GB | 64GB | 64GB | 64GB | 64GB | 48GB |
| Kit | 4 x 16GB | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 24GB |
| Memory Type | DDR4 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 |
| Speed Mts | 2666 | 6400 | 6000 | 6400 | 6000 | 8000 |
| Cas Latency | CL19 | CL32 | CL26 | CL32 | CL30 | CL38 |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Ecc | true | false | false | false | false | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Feature | Latency | Capacity | Social Proof |
|---|---|---|---|---|---|
| Crucial CT4K16G4DFD8266 | 37.4 | 72.9 | 35.9 | 89.9 | 76.8 |
| Kingston FURY Beast KF564C32BWEAK2-64 Compare | 94.7 | 87 | 87.5 | 89.9 | 93.4 |
| G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Compare | 87.4 | 87 | 99.1 | 89.9 | 78.1 |
| Corsair VENGEANCE RGB CMH64GX5M2B6400C32 Compare | 94.7 | 87 | 87.5 | 89.9 | 93.4 |
| KLEVV CRAS V RGB KD5BGUA80-60A300J Compare | 87.4 | 87 | 87.5 | 89.9 | 87.7 |
| Team Group T-Force XTREEM ARGB FF9D548G8000HC38EDC01 Compare | 99.2 | 99.4 | 95.2 | 84.5 | 71.4 |
Price
Value & Pricing
We started tracking prices for this product on Jun 14, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
