Design:
| Type |
Productivity |
| weight |
1868 g |
| Uses a fanless design |
✕ |
| Has a backlit keyboard |
✓ |
| volume |
1684.236 cm³ |
| width |
356 mm |
| height |
249 mm |
| thickness |
19 mm |
| is weather-sealed (splashproof) |
✕ |
| has a rugged build |
✕ |
The Dell Inspiron 16 5645 (2025) is a productivity laptop with a solid, portable design. Weighing 1868 g and measuring 356 mm in width, 249 mm in height, and 19 mm in thickness, it balances performance with portability. It features a backlit keyboard for easier typing in low-light environments. While it does not have a fanless design, it offers a standard cooling system, and is not weather-sealed or rugged, making it better suited for indoor use.
Display:
| screen size |
16" |
| resolution |
1920 x 1200 px |
| pixel density |
141 ppi |
| has a touch screen |
✓ |
| refresh rate |
60Hz |
| has anti-reflection coating |
✕ |
| supported displays |
4 |
The Dell Inspiron 16 5645 features a 16″ touch screen display with a resolution of 1920 x 1200 px, offering a pixel density of 141 ppi for clear visuals. While it lacks an anti-reflection coating, the screen supports up to 4 external displays, making it suitable for multi-monitor setups. The 60Hz refresh rate provides a stable viewing experience, though it may not be ideal for high-speed gaming.
Performance:
| RAM |
64GB |
| Uses flash storage |
✓ |
| internal storage |
2048GB |
| CPU speed |
8 x 3.3 GHz |
| CPU threads |
16 threads |
| Is an NVMe SSD |
✓ |
| DirectX version |
DirectX 12 |
| GPU clock speed |
800 MHz |
| uses multithreading |
✓ |
| maximum memory amount |
256GB |
| DDR memory version |
5 |
| turbo clock speed |
5.1GHz |
| GPU turbo |
2700 MHz |
| PCI Express (PCIe) version |
4 |
| semiconductor size |
4 nm |
| has XeSS (XMX) |
✕ |
| Supports 64-bit |
✓ |
The Dell Inspiron 16 5645 is equipped with 64GB of RAM and 2048GB of NVMe flash storage, providing ample memory and fast data access. The 8-core CPU runs at 3.3 GHz, with a turbo boost of 5.1GHz, and is capable of handling 16 threads simultaneously, ensuring efficient multitasking. Additionally, the integrated GPU has a clock speed of 800 MHz, and the system supports DirectX 12 for enhanced graphics performance.
Benchmarks:
| Geekbench 6 result (multi) |
9332 |
| Geekbench 6 result (single) |
2188 |
| PassMark result |
23339 |
| PassMark result (single) |
3538 |
The Dell Inspiron 16 5645 delivers solid benchmark results with a Geekbench 6 multi-core score of 9332 and a single-core score of 2188, indicating good overall performance. Its PassMark result stands at 23339, with a single-core PassMark score of 3538, reflecting its efficiency in both multi-threaded and single-threaded tasks.
Connectivity:
| USB 4 20Gbps ports |
0 |
| USB 4 40Gbps ports |
0 |
| Thunderbolt 4 ports |
0 |
| USB 3.2 Gen 1 ports (USB-A) |
3 |
| Thunderbolt 3 ports |
0 |
| Has USB Type-C |
✕ |
| supports Wi-Fi |
✓ |
| Wi-Fi version |
Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) |
| has an external memory slot |
✓ |
| Bluetooth version |
5.3 |
| RJ45 ports |
0 |
| DisplayPort outputs |
0 |
| has AirPlay |
✓ |
| mini DisplayPort outputs |
0 |
| has a VGA connector |
✕ |
The Dell Inspiron 16 5645 offers a range of connectivity options, including three USB 3.2 Gen 1 ports (USB-A) and support for Wi-Fi 6 (802.11ax), ensuring fast wireless connections. It also features Bluetooth 5.3 for seamless device pairing and an external memory slot for additional storage. For display sharing, it supports AirPlay but lacks USB Type-C, Thunderbolt, and VGA connectors.
Battery:
| Battery life |
14 hours |
| Has sleep-and-charge USB ports |
✕ |
| Has a MagSafe power adapter |
✕ |
The Dell Inspiron 16 5645 offers up to 14 hours of battery life, providing all-day usage on a single charge. However, it does not feature sleep-and-charge USB ports or a MagSafe power adapter, which may limit convenience for some users when charging or connecting devices.
Features:
| release date |
April 2025 |
| has stereo speakers |
✓ |
| has a socket for a 3.5 mm audio jack |
✓ |
| supports ray tracing |
✕ |
| supports DLSS |
✕ |
| has Dolby Atmos |
✕ |
| Stylus included |
✕ |
| Has a fingerprint scanner |
✓ |
| number of microphones |
1 |
| Uses 3D facial recognition |
✕ |
| has voice commands |
✕ |
| has a front camera |
✓ |
| Has S/PDIF Out port |
✕ |
| has a gyroscope |
✕ |
| has GPS |
✕ |
| has an accelerometer |
✕ |
| has a compass |
✕ |
| Has an optical disc drive |
✕ |
The Dell Inspiron 16 5645 is equipped with useful features like stereo speakers and a front camera for video calls, as well as a fingerprint scanner for enhanced security. It also includes a 3.5 mm audio jack for audio connections, though it does not support advanced features like ray tracing, DLSS, or Dolby Atmos. Other sensors like GPS, gyroscope, and accelerometer are also absent.
Miscellaneous:
| clock multiplier |
33 |
| PassMark result (overclocked) |
23956 |
| GPU name |
Radeon 780M |
| Type |
Laptop |
| instruction sets |
MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 |
| Uses big.LITTLE technology |
✕ |
| Has an unlocked multiplier |
✕ |
| Has NX bit |
✓ |
| L3 core |
2 MB/core |
| L3 cache |
16 MB |
| L2 core |
1 MB/core |
| L2 cache |
8 MB |
| L1 cache |
512 KB |
| render output units (ROPs) |
32 |
| texture mapping units (TMUs) |
48 |
| shading units |
768 |
| GPU execution units |
12 |
| OpenCL version |
2.1 |
| OpenGL version |
4.6 |
| Has integrated graphics |
✓ |
| Supports ECC memory |
✕ |
| memory channels |
2 |
| RAM speed (max) |
7500 MHz |
| CPU temperature |
100 °C |
| Thermal Design Power (TDP) |
28W |
The Dell Inspiron 16 5645 is powered by a Radeon 780M GPU and supports integrated graphics, offering up to 12 GPU execution units. It features 16 MB of L3 cache and 8 MB of L2 cache, with a clock multiplier of 33. Its CPU supports a range of instruction sets, including AVX and SSE 4.2, but it does not include an unlocked multiplier or big.LITTLE technology. The laptop’s thermal design power (TDP) is 28W, and it has a maximum RAM speed of 7500 MHz.
