AMD Ryzen 9 7940HX
The AMD Ryzen 9 7940HX is a high-end notebook processor from the Dragon Range series with 16 cores and hyperthreading (SMT), which means it can process up to 32 threads simultaneously. The CPU uses the current Zen 4 architecture for the 16 cores and clocks these from 2.4 GHz (base clock) up to 5.2 GHz (single-core boost). The CPU offers 16 MB L2 cache and 64 MB L3 cache (i.e. a total of 80 MB cache). The 7940HX consists of three chiplets, two CCD clusters with 8 CPU cores each made with a 5nm node (71mm²) and one IO die on 6nm (122mm²), are all manufactured at TSMC's fabs.
The performance of the Ryzen 9 should be comparable to a Core i9-13900HX (24 hybrid cores, max 5.4 GHz) in the top range of mobile processors from 2024. AMD itself advertises a clear lead over the old Ryzen 9 6900HX (8 Zen 3 cores, 4.9 GHz), which can be explained by the additional cores, improved architecture and higher frequencies. Compared to the top model, the Ryzen 9 7945HX, the 7940HX is slightly lower clocked.
The chip also integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB 4), 28 PCIe 5.0 lanes (for GPUs and SSDs), a dual-channel DDR5-5200 memory controller and a small AMD Radeon 610M graphics card (2CUs, 400 - 2200 MHz).
The R9 7940HX is specified with 55 watts TDP and can be configured up to 75 watts (cTDP).
| Codename | Dragon Range-HX (Zen 4) | ||||||||||||||||||||
| Series | AMD Dragon Range | ||||||||||||||||||||
Series: Dragon Range Dragon Range-HX (Zen 4)
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| Clock Rate | 2400 - 5200 MHz | ||||||||||||||||||||
| Level 1 Cache | 1 MB | ||||||||||||||||||||
| Level 2 Cache | 16 MB | ||||||||||||||||||||
| Level 3 Cache | 64 MB | ||||||||||||||||||||
| Number of Cores / Threads | 16 / 32 16 x 5.2 GHz AMD Zen 4 | ||||||||||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 55 Watt | ||||||||||||||||||||
| Transistor Count | 9900 Million | ||||||||||||||||||||
| Manufacturing Technology | 5 nm | ||||||||||||||||||||
| Max. Temperature | 100 °C | ||||||||||||||||||||
| Socket | FL1 | ||||||||||||||||||||
| Features | DDR5-5200 RAM, PCIe 5, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | ||||||||||||||||||||
| GPU | AMD Radeon 610M (400 - 2200 MHz) | ||||||||||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||
| Announcement Date | 01/17/2024 | ||||||||||||||||||||
| Product Link (external) | www.amd.com | ||||||||||||||||||||
Benchmarks
- Average benchmark values* Smaller numbers mean a higher performance
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