AMD Ryzen 5 7645HX vs AMD Ryzen 5 7535U: comparison
Comparison of AMD Ryzen 5 7645HX and AMD Ryzen 5 7535U: key differences and a full specification table.
Key differences
AMD Ryzen 5 7645HX has a higher base clock (4 GHz vs 2.9 GHz), a higher maximum clock (5 GHz vs 4.55 GHz), a larger L3 cache (32 MB vs 16 MB) and a finer process node (5 nm vs 6 nm).
At the same time, AMD Ryzen 5 7535U has a lower TDP (28 W vs 55 W).
Both processors match on: core count (6), thread count (12), maximum memory size (64 GB), memory channels (2).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | AMD Ryzen 5 7645HX | AMD Ryzen 5 7535U |
|---|---|---|
| Cores / threads | 6 / 12 | 6 / 12 |
| Max boost clock | 5 GHz | 4.55 GHz |
| L3 cache | 32 MB | 16 MB |
| TDP | 55 W | 28 W |
| Process | 5 nm | 6 nm |
| Integrated graphics | AMD Radeon 610M | AMD Radeon 660M |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | AMD Ryzen 5 7645HX | AMD Ryzen 5 7535U |
|---|---|---|
| General | ||
| Codename | Dragon Range | Rembrandt R |
| Segment | Mobile | Mobile |
| Product line | AMD Ryzen 5 Processors with Radeon Graphics | AMD Ryzen 5 Processors with Radeon Graphics |
| Product family | AMD Ryzen Processors | AMD Ryzen Processors |
| Architecture | "Zen 4" | "Zen 3+" |
| Process | 5 nm | 6 nm |
| Dies per package | 2 | 1 |
| Unlocked for overclocking | Yes | No |
| Operating system support | Windows 11 - 64-Bit Edition, Windows 10 - 64-Bit Edition, RHEL x86 64-Bit, Ubuntu x86 64-Bit | Windows 11 - 64-Bit Edition, Windows 10 - 64-Bit Edition, RHEL x86 64-Bit, Ubuntu x86 64-Bit |
| Regional availability | Global, China, NA, EMEA, APJ, LATAM | Global, China, NA, EMEA, APJ, LATAM |
| Consumer oriented | Yes | Yes |
| CPU | ||
| Cores | 6 | 6 |
| Threads | 12 | 12 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | 4 GHz | 2.9 GHz |
| Max boost clock | 5 GHz | 4.55 GHz |
| L1 cache | 384 KB | 512 KB |
| L2 cache | 6 MB | 3 MB |
| L3 cache | 32 MB | 16 MB |
| TDP | 55 W | 28 W |
| Configurable TDP | 45–75 W | — |
| Instruction set | x86-64 | x86-64 |
| Instruction set extensions | AES, AMD-V, AVX, AVX512, FMA3, MMX(+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3, x86-64 | AES, AMD-V, AVX, AVX2, FMA3, MMX(+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3, x86-64 |
| Boost technology | Precision Boost 2 | Precision Boost 2 |
| Memory | ||
| Max memory size | 64 GB | 64 GB |
| Memory types | DDR5 | DDR5, LPDDR5 |
| Memory channels | 2 | 2 |
| ECC memory supported | No | Yes |
| Memory speed (text) | 2x1R | DDR5-5200 | | | 2x2R | DDR5-5200 | 4x1R | DDR5-4800 | | | 4x1R | LPDDR5-6400 |
| Memory form factor | SO-DIMM | UDIMM |
| Graphics | ||
| Integrated graphics | AMD Radeon 610M | AMD Radeon 660M |
| Has integrated graphics | Yes | Yes |
| Graphics max frequency | 2.2 GHz | 1.9 GHz |
| Graphics units | 2 | 6 |
| Graphics video max memory | — | 2 GB |
| Max displays | 4 | 4 |
| DirectX | 12 | 12 |
| OpenGL | — | 4.6 |
| OpenCL | — | 2.2 |
| DisplayPort over USB-C | Yes | Yes |
| Shading units | — | 384 |
| HDCP version | 2.3 | 2.2 |
| Adaptive sync | Yes | Yes |
| DisplayPort version | 2 | 2 |
| HDMI version | 2.1 | 2.1 |
| Multi-display support | Yes | Yes |
| Wireless display | Miracast | Miracast |
| I/O and interfaces | ||
| PCI Express revision | 5 | 4 |
| PCI Express lanes | 28 | 20 |
| USB 2.0 ports | 1 | 4 |
| USB 3.2 Gen 2 ports | 4 | 2 |
| NVMe support | Boot, RAID0, RAID1, RAID10 | Boot, RAID0, RAID1, RAID10 |
| USB Type-C support | Yes | Yes |
| Package and thermal | ||
| Sockets supported | FL1 | FP7 |
| TJUNCTION | 100 °C | 95 °C |
| Die size | 71 mm² | 210 mm² |
| I/O die process | 6 nm | — |
| I/O die size | 122 mm² | — |
| Security and virtualization | ||
| Execute Disable Bit | Yes | Yes |
| AMD PRO technologies | No | No |
| Technologies | ||
| Precision Boost Overdrive | Yes | — |
| AMD EXPO memory profiles | Yes | — |
| Identifiers | ||
| Product ID (OEM) | 100-000000872 | FP7: 100-000000988 FP7r2: 100-000000992 |