AMD Ryzen 5 240 vs AMD Ryzen 5 7645HX Comparison

The AMD Ryzen 5 7645HX and AMD Ryzen 5 240 are both 6-core, 12-thread mobile processors with a 45 W TDP, but they are built on fundamentally different designs from the same company. The 7645HX, part of the 7000 series, is a Dragon Range chip on the 5 nm process, while the 240 is a Hawk Point part on the 4 nm node. Despite the architectural differences, the aggregate performance data places them nearly identically. The 7645HX has an average benchmark score of 33,668, and the 240 sits at 33,542, a difference of just 0.4%. Both hold the 84th percentile among all CPUs. The data shows a clear pattern: the 7645HX wins every single head-to-head benchmark, taking all 15 comparisons, but the margins vary wildly from a modest 3.8% to a staggering 154.3%. The practical takeaway is that the 7645HX is the stronger performer across the board, especially in specific workloads, while the 240 offers a more modern process node and a newer integrated graphics solution.

The Verdict

The benchmark data is unambiguous in its verdict: the AMD Ryzen 5 7645HX is the faster processor. Across all 15 head-to-head tests, the 7645HX emerges victorious, with zero wins for the AMD Ryzen 5 240. The overall average benchmark score difference is marginal, with the 7645HX at 33,668 and the 240 at 33,542, but the per-test deltas tell a more interesting story. The 7645HX is not just faster; it is often significantly faster. For users prioritizing raw CPU performance, particularly in physics simulations or multi-threaded rendering, the 7645HX is the clear choice. Its wins in PassMark physics (41.2% ahead) and multithread (16.9% ahead) highlight a substantial advantage in heavily threaded workloads.

However, the 240 is not without merit. It matches the 7645HX in boost clock at 5.00 GHz and has a higher base clock of 4.30 GHz compared to 4.00 GHz. It also features a more advanced 4 nm process node versus the 5 nm of the 7645HX, and its integrated graphics, the Radeon 760M, is a step up from the Radeon 610M found in the 7645HX. For a system that relies more heavily on the iGPU or benefits from a newer manufacturing process, the 240 could be preferable. Yet, the data shows that in every measurable CPU-bound task, from single-thread to multi-thread, the 7645HX pulls ahead. The choice is simple: choose the 7645HX for maximum compute performance, and consider the 240 only if the integrated graphics or process node advantages are more critical than raw CPU scores.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The AMD Ryzen 5 7645HX is consistently faster. In Cinebench R23 multi-core, it scores 13,985 versus the 240’s 13,013, a 7.5% advantage. This lead expands to 16.9% in the PassMark multithread test, with scores of 26,476 and 22,658 respectively.

Q: Is there any workload where the AMD Ryzen 5 240 wins?

A: No. Based on the head-to-head data, the AMD Ryzen 5 7645HX wins all 15 benchmark comparisons. The 240 does not win a single test, although its average score is only 0.4% lower.

Q: How do the processors compare in single-thread performance?

A: The 7645HX leads by a small margin. In Cinebench R23 single-core, it scores 1,809 against the 240’s 1,742, a 3.8% difference. The PassMark single-thread test shows a 6.3% lead for the 7645HX, with scores of 3,907 and 3,675.

Q: What is the most significant performance gap between the two?

A: The largest delta is in the PassMark find prime numbers test. The 7645HX scores 178, while the 240 scores just 70. This gives the 7645HX a 154.3% advantage, indicating a massive difference in this specific integer computation workload.

Q: Do the processors have different memory bandwidth capabilities?

A: Yes. The AMD Ryzen 5 240 has a higher theoretical memory bandwidth at 89.6 GB/s, while the AMD Ryzen 5 7645HX is rated at 83.2 GB/s. Both support dual-channel DDR5 memory.

Q: How does the average benchmark score compare to other CPUs?

A: Both processors have an average benchmark score around 33,600, placing them in the 84th percentile of all CPUs. The 7645HX scores 33,668, and the 240 scores 33,542. They are closely matched with rivals like the AMD Ryzen 7 8840HS and the Intel Core Ultra 7 255H.

Architecture Differences

The two processors represent distinct architectural approaches from AMD. The Ryzen 5 7645HX is based on the Zen 4 architecture with the codename Dragon Range, while the Ryzen 5 240 uses the same Zen 4 core architecture but under the Hawk Point codename. This difference in codename reflects a difference in design goals and physical implementation. The 7645HX is fabricated on a 5 nm process at TSMC, whereas the 240 uses a more advanced 4 nm process, also from TSMC. This process advantage for the 240 does not translate into a performance lead in the data, but it does allow for a much higher transistor count.

The transistor counts are drastically different. The 7645HX contains 6,570 million transistors on a die size of 71 mm². In contrast, the 240 packs 25,000 million transistors onto a much larger 178 mm² die. This suggests that the 240 integrates more functionality, likely in its memory controller and integrated graphics, which is confirmed by its superior Radeon 760M iGPU compared to the 7645HX’s Radeon 610M. The cache hierarchy also differs. While both have 64 KB of L1 and 1 MB of L2 per core, the shared L3 cache is halved on the 240, with 16 MB shared versus 32 MB on the 7645HX. This L3 cache deficit is a likely contributor to the 7645HX’s performance advantage in many tests.

Another key architectural difference lies in the I/O and platform support. The 7645HX uses the AMD Socket FL1 and supports PCIe Gen 5 with 28 lanes (CPU only). The 240 uses the newer AMD Socket FP8 and is limited to PCIe Gen 4 with 20 lanes (CPU only). This makes the 7645HX a more capable platform for high-bandwidth storage and GPUs. Additionally, the 7645HX supports ECC memory, a feature the 240 lacks. Both processors have their multiplier locked, meaning they are not unlocked for overclocking.

Specification Differences

A direct comparison of the specification sheets reveals several key differences beyond the architecture. The most obvious is the base clock: the 240 runs at 4.30 GHz, which is higher than the 7645HX’s 4.00 GHz. However, both boost to the same 5.00 GHz maximum clock speed. The process node differs as noted, with the 7645HX on 5 nm and the 240 on 4 nm. The transistor count and die size are also significantly different, with the 240 having roughly four times the transistors and a die more than twice the size.

The cache configuration is a notable differentiator. The L1 and L2 caches are identical at 64 KB and 1 MB per core, respectively. The L3 cache, however, is 32 MB on the 7645HX and only 16 MB on the 240. This is a major specification difference that likely impacts performance. Memory support is the same type (DDR5, dual-channel), but the theoretical bandwidth is higher on the 240 at 89.6 GB/s versus 83.2 GB/s. ECC memory support is present on the 7645HX but not on the 240. The PCIe interface also differs, with the 7645HX supporting Gen 5 with 28 lanes, while the 240 supports Gen 4 with 20 lanes. The integrated graphics are different, with the 240 featuring the Radeon 760M and the 7645HX featuring the Radeon 610M. The socket types are different as well, with the 7645HX on FL1 and the 240 on FP8. The release dates are also distinct, with the 7645HX launching in January 2023 and the 240 in January 2025.

Head-to-Head Benchmarks

The benchmark results paint a picture of consistent, but not uniform, superiority for the AMD Ryzen 5 7645HX. The biggest wins for the 7645HX come in specialized tests. The most dramatic is the PassMark find prime numbers test, where the 7645HX scores 178 versus the 240’s 70, a 154.3% delta. This is an outlier, but it shows a massive advantage in certain integer workloads. The PassMark physics test also shows a huge gap, with the 7645HX scoring 1,497 against the 240’s 1,060, a 41.2% lead. This is a significant indicator for gaming and simulation physics.

In more general multi-threaded tests, the 7645HX maintains a solid lead. The PassMark multithread score is 26,476 versus 22,658, a 16.9% advantage. The Cinebench R15 multi-core test shows a 9.5% lead (2,276 vs 2,078), and the Cinebench R23 multi-core test shows a 7.5% lead (13,985 vs 13,013). These results confirm that the 7645HX is better at leveraging all cores. The PassMark data compression and encryption tests also favor the 7645HX, with 12.8% and 12.9% leads respectively. The extended instructions test shows a 13.7% advantage for the 7645HX.

The single-threaded results are closer, but the 7645HX still wins. In Cinebench R15 single-core, the scores are 289 for the 7645HX and 270 for the 240, a 7% difference. The Cinebench R23 single-core test shows a 3.8% lead (1,809 vs 1,742). PassMark single-thread shows a 6.3% lead, with scores of 3,907 and 3,675. Other PassMark tests like floating point math (7.7% lead), integer math (5.8% lead), and random string sorting (6.3% lead) all go to the 7645HX. In every single category, from the most specialized to the most general, the AMD Ryzen 5 7645HX demonstrates a measurable performance edge over the AMD Ryzen 5 240.