AMD Ryzen 5 PRO 6650U vs AMD Ryzen 7 4800H Comparison

The AMD Ryzen 5 PRO 6650U and AMD Ryzen 7 4800H represent two distinct approaches to mobile computing: one optimized for efficiency with a modern architecture, and the other for raw throughput with more cores. The benchmark data reveals a clear split, with the Ryzen 7 4800H dominating multi-threaded workloads while the Ryzen 5 PRO 6650U consistently wins in single-threaded and specific math tasks. Across the 17 head-to-head comparisons, the Ryzen 7 4800H secured 9 wins, while the Ryzen 5 PRO 6650U took 8, indicating a near-even overall split but with very different performance profiles.

Head-to-Head Benchmarks

The most significant victories for the AMD Ryzen 7 4800H come in multi-core rendering tests. In Cinebench R23 multi-core, the Ryzen 7 4800H scores 11,135.5, which is 20.5% ahead of the Ryzen 5 PRO 6650U’s 8,854. The gap widens slightly in Cinebench R15 multi-core, where the 4800H’s 1,854 score beats the 6650U’s 1,459.5 by 21.3%. These results highlight the advantage of the 4800H’s 8 cores and 16 threads over the 6650U’s 6 cores and 12 threads in heavily threaded workloads.

The Ryzen 5 PRO 6650U, however, delivers a decisive counterpunch in single-core performance. In Geekbench single-core, the 6650U scores 1,652, a 24.3% improvement over the 4800H’s 1,329. Cinebench R23 single-core shows a similar trend, with the 6650U’s 1,463 outperforming the 4800H’s 1,253.5 by 16.7%. This is also reflected in PassMark single-thread, where the 6650U’s 3,149 beats the 4800H’s 2,597 by 21.3%.

The most extreme single-test delta is in PassMark find prime numbers, where the Ryzen 5 PRO 6650U scores 52 versus the Ryzen 7 4800H’s 33, a massive 57.6% advantage. This suggests the newer Zen 3+ architecture has significantly better integer performance per core in certain algorithmic tasks. Conversely, the largest win for the 4800H is in PassMark random string sorting, where its 29,181 score is 30.4% higher than the 6650U’s 20,299.

Other notable multi-threaded wins for the 4800H include PassMark data compression (269,334 vs 190,180, a 29.4% lead) and PassMark extended instructions (17,035 vs 12,261, a 28% lead). The 4800H also wins in PassMark data encryption (15,530 vs 12,159, 21.7% ahead) and PassMark floating point math (37,312 vs 32,571, 12.7% ahead). In PassMark integer math, the 4800H’s 63,999 narrowly edges out the 6650U’s 60,045 by 6.2%.

Interestingly, the Ryzen 5 PRO 6650U wins Geekbench multi-core despite having fewer cores. Its 7,065 score is 8.9% higher than the 4800H’s 6,490. This indicates that in this particular benchmark, the 6650U’s higher per-core efficiency and boost clock of 4.50 GHz (versus 4.20 GHz for the 4800H) can overcome the core count deficit. The 6650U also wins PassMark physics (837 vs 754, an 11% lead) and PassMark multi-thread (16,429 vs 18,222, a 9.8% loss for the 6650U, meaning the 4800H wins this one).

Where Each One Wins

The AMD Ryzen 7 4800H is the clear choice for sustained, heavily threaded workloads. Its wins in Cinebench R23 and R15 multi-core, PassMark data compression, data encryption, extended instructions, floating point math, integer math, and random string sorting make it well-suited for content creation, video encoding, 3D rendering, and data processing tasks that can utilize all 8 cores and 16 threads. The 45W TDP, while higher, provides the thermal headroom needed for these demanding tasks.

The AMD Ryzen 5 PRO 6650U excels in single-threaded performance and specific math operations. Its wins in all single-core tests (Cinebench R15, R23, Geekbench, PassMark) and the outstanding result in find prime numbers suggest it is better for everyday responsiveness, office productivity, web browsing, and applications that rely heavily on single-thread speed. The 8.9% win in Geekbench multi-core further shows that its efficiency can sometimes overcome the core deficit. Its 15W TDP makes it more suitable for thin-and-light laptops where battery life and thermals are priorities.

The PassMark multithread test, which the 4800H wins by 9.8%, is a mixed bag; it shows the 4800H’s raw thread count advantage, but the 6650U remains competitive. The 6650U’s wins in physics and prime numbers suggest it handles certain physics simulations and prime-finding algorithms much faster, which could benefit specific scientific or engineering applications.

FAQ

Q: Which CPU has better single-core performance?

A: The AMD Ryzen 5 PRO 6650U is significantly faster in single-core tests. It leads by 23.7% in Cinebench R15 single-core, 16.7% in Cinebench R23 single-core, 24.3% in Geekbench single-core, and 21.3% in PassMark single-thread.

Q: Which CPU is better for multi-core rendering?

A: The AMD Ryzen 7 4800H is substantially better. It scores 20.5% higher in Cinebench R23 multi-core and 21.3% higher in Cinebench R15 multi-core, thanks to its 8 cores and 16 threads versus the 6650U’s 6 cores and 12 threads.

Q: Does the Ryzen 5 PRO 6650U ever beat the 4800H in multi-core?

A: Yes, in Geekbench multi-core, the 6650U wins with a score of 7,065 versus 6,490 for the 4800H, an 8.9% advantage. This indicates better efficiency per core in that specific workload.

Q: What is the biggest performance gap between the two?

A: The largest delta is in PassMark find prime numbers, where the Ryzen 5 PRO 6650U scores 52 versus 33 for the 4800H, a 57.6% lead for the 6650U.

Q: Which CPU has a higher boost clock speed?

A: The AMD Ryzen 5 PRO 6650U has a higher boost clock of 4.50 GHz, while the AMD Ryzen 7 4800H boosts to 4.20 GHz.

Q: How do their average benchmark scores compare?

A: The average benchmark scores are very close. The Ryzen 5 PRO 6650U has an average score of 21,874, and the Ryzen 7 4800H has an average score of 21,749, a difference of less than 0.6%.

Specification Differences

The two processors differ in several core specifications. The Ryzen 5 PRO 6650U has 6 cores and 12 threads, while the Ryzen 7 4800H has 8 cores and 16 threads. Their base clocks are identical at 2.90 GHz, but the boost clock differs: 4.50 GHz for the 6650U versus 4.20 GHz for the 4800H. Thermal design power is a major differentiator, with the 6650U at 15W and the 4800H at 45W.

The memory support differs significantly: the 6650U supports DDR5, while the 4800H supports DDR4 and LPDDR4. This leads to a memory bandwidth difference, with the 6650U offering 76.8 GB/s versus 51.2 GB/s for the 4800H. PCIe support also differs, with the 6650U featuring Gen 4 with 20 lanes (CPU only), while the 4800H has Gen 3. The socket types are different: AMD Socket FP7 for the 6650U and AMD Socket FP6 for the 4800H. Their release dates are also different, with the 4800H launching on 2020-01-05 and the 6650U on 2022-04-18.

Architecture Differences

The architectural differences are fundamental. The Ryzen 5 PRO 6650U is built on the Zen 3+ architecture (codenamed Rembrandt), while the Ryzen 7 4800H uses the older Zen 2 architecture (codenamed Renoir). This is reflected in the process node: the 6650U uses a 6 nm process, while the 4800H uses a 7 nm process, both from TSMC. The die size differs, with the 6650U at 208 mm² and the 4800H at 156 mm². The 4800H has a transistor count of 9,800 million, while the 6650U's transistor count is not listed.

Cache configurations differ in L3 cache. The 6650U has 16 MB of shared L3 cache, while the 4800H has only 8 MB of shared L3 cache. Both have the same L1 cache (64 KB per core) and L2 cache (512 KB per core). The integrated graphics differ: the 6650U features a Radeon 660M, while the 4800H has Radeon Graphics with 448 SP. The 6650U belongs to the 6000 series and is named Ryzen 5, while the 4800H is from the 4000 series and is named Ryzen 7.

The Verdict

The data presents a clear choice based on workload priorities. If the primary use case involves heavy multi-threading—such as video editing, 3D rendering, or compiling code—the AMD Ryzen 7 4800H is the superior option. Its 20.5% lead in Cinebench R23 multi-core and 29.4% lead in data compression demonstrate a decisive advantage in these areas. The 4800H’s 8 cores and 16 threads, combined with its higher 45W TDP, allow it to sustain performance in these demanding scenarios.

Conversely, the AMD Ryzen 5 PRO 6650U is the better fit for users who prioritize single-threaded speed, battery efficiency, and modern platform features. Its wins in every single-core benchmark, including a 24.3% lead in Geekbench single-core, make it ideal for rapid application launches and responsive daily use. The 15W TDP and DDR5 support indicate a platform designed for portability and efficiency. The 57.6% win in find prime numbers also suggests it has specialized strengths in certain algorithmic workloads.

Given the near-identical average benchmark scores (21,874 for the 6650U versus 21,749 for the 4800H), neither processor is a clear overall winner. The decision hinges on whether the user needs the 4800H’s multi-core brute force or the 6650U’s single-core agility and efficiency. The 6650U is the modern, efficient choice for general productivity, while the 4800H remains a strong option for sustained multi-threaded performance.