DELL XPS 9720 RAM upgrade specifications
Dell XPS 17 9720 laptop features two SO-DIMM slots supporting DDR5-SDRAM memory upgrades at 4800 MHz frequency. Maximum RAM capacity reaches 64 GB total. The memory upgrade specifications indicate compatible DDR5 SO-DIMM modules can be installed in the dual slots to expand system memory from factory configuration. Specifications define DDR5-SDRAM as the required memory type for this XPS 17 Series model.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR5-SDRAM |
| Frequency | 4800 MHz |
| Maximum RAM | 64 GB |
| Voltage | 1.1V |
| Number of pins | 262-pin |
| Interface | PC5 |
| PC Speed Rating | PC5-4800 (PC5-38400) |
| Bandwidth | 38.4 GB/s |
| Laptop Release date | 13 April 2022 |
Additional Notes
- The DELL XPS 9720 restricts RAM capacity to 64 GB total across both slots, requiring modules no larger than 32 GB each for maximum configuration.
- DDR5-4800 modules must operate in dual-channel mode to achieve rated bandwidth of 76.8 GB/s, making matched pairs mandatory for optimal throughput.
- Mixing different capacity modules will force the memory controller to operate in asymmetric mode, reducing effective bandwidth below the 4800 MHz specification.
- SO-DIMM modules for this platform require 262-pin connectors and 1.1V operating voltage typical of DDR5 standards, eliminating compatibility with DDR4 inventory.
- Single module installations will halve memory bandwidth to approximately 38.4 GB/s, creating bottlenecks in GPU-intensive applications and content creation workflows.
- The 4800 MHz frequency represents JEDEC baseline for DDR5, preventing higher-speed XMP/EXPO profile modules from exceeding this limit without BIOS support verification.
- Physical installation requires manufacturer-approved SO-DIMM modules to maintain thermal specifications, as aftermarket modules may lack integrated temperature sensors for DDR5 throttling management.
- ECC SO-DIMM modules are incompatible with this configuration despite physical fitment, as the platform lacks error correction controller support.
- Upgrading from factory configurations necessitates matched latency timings across modules to prevent system downclocking to slowest module specifications.
- The 2-slot limitation eliminates future expansion beyond initial installation, requiring immediate commitment to final capacity target during upgrade.