AMD Ryzen 5 6600H vs AMD Ryzen 7 5825U Comparison

The AMD Ryzen 5 6600H and AMD Ryzen 7 5825U are both mobile processors that land in the same performance tier, but they achieve it through very different designs. The data shows the Ryzen 5 6600H wins 13 of 17 head-to-head benchmark comparisons, while the Ryzen 7 5825U takes 4. However, the margins are often narrow, and the Ryzen 7’s wins in specific workloads reveal a clear division of labor. The Ryzen 5 6600H is the more consistent all-round performer, while the Ryzen 7 5825U pulls ahead in integer-heavy and floating-point tasks that leverage its extra cores.

Head-to-Head Benchmarks

The most decisive victory for the AMD Ryzen 5 6600H comes in the PassMark physics test, where it scores 891 against the Ryzen 7 5825U’s 774, a commanding 15.1% lead. This is the largest margin in either direction across the entire benchmark suite. The Ryzen 5 also dominates extended instruction workloads, scoring 15903 versus 14394, a 10.5% advantage. In prime number finding, the Ryzen 5 leads 52 to 48, an 8.3% edge. These wins suggest the Ryzen 5’s architecture handles specialized computational tasks with greater efficiency.

The AMD Ryzen 7 5825U strikes back hardest in PassMark integer math, where it scores 72577 against the Ryzen 5’s 64927, a 10.5% blowout in favor of the 8-core part. It also wins floating-point math, scoring 38482 versus 36796, a 4.4% margin. In Cinebench R15 multi-core, the Ryzen 7 takes a 1757 to 1681.5 win, a 4.3% advantage. The Ryzen 7 also edges ahead in Geekbench single-core, scoring 1618 versus 1566, a 3.2% lead.

The Ryzen 5 6600H, despite having fewer cores, wins the more modern Cinebench R23 multi-core test, scoring 10322 versus 10152, a 1.7% margin. It also wins Geekbench multi-core with a 7444 to 7288 score, a 2.1% edge. In PassMark multi-thread, the Ryzen 5 leads 18669 to 18131, a 3% advantage. The single-thread PassMark results favor the Ryzen 5 by 4.1%, with scores of 3178 versus 3053. Data compression also goes to the Ryzen 5, 229879 to 221938, a 3.6% win, while data encryption shows a narrower 1.3% advantage for the Ryzen 5 at 14277 versus 14088.

The Cinebench single-core results are essentially a tie, with the Ryzen 5 winning R15 single-core 234 to 232 (0.9%) and R23 single-core 1458 to 1452 (0.4%). Random string sorting also favors the Ryzen 5, 23888 to 23539, a 1.5% margin. Across the board, the Ryzen 5 6600H shows a pattern of winning more tests, but the Ryzen 7 5825U’s wins are concentrated in raw computational throughput where its extra two cores matter most.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 5 6600H has an average benchmark score of 25550, while the AMD Ryzen 7 5825U scores 25446. Both processors rank in the 78th percentile against all CPUs.

Q: How do the two processors compare in Cinebench R23 multi-core performance?

A: The Ryzen 5 6600H leads with a score of 10322, which is 1.7% higher than the Ryzen 7 5825U’s 10152.

Q: Which processor wins the PassMark integer math test?

A: The AMD Ryzen 7 5825U wins decisively, scoring 72577 against the Ryzen 5 6600H’s 64927, a 10.5% advantage.

Q: Is there a significant difference in single-core performance?

A: The results are mixed. The Ryzen 7 5825U leads Geekbench single-core by 3.2% (1618 vs 1566), but the Ryzen 5 6600H leads PassMark single-thread by 4.1% (3178 vs 3053) and Cinebench R15 single-core by 0.9% (234 vs 232).

Q: What is the TDP difference between the two chips?

A: The AMD Ryzen 5 6600H has a TDP of 45 watts, while the AMD Ryzen 7 5825U has a TDP of 15 watts.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 7 5825U supports ECC memory, while the AMD Ryzen 5 6600H does not.

Where Each One Wins

The AMD Ryzen 5 6600H is the clear winner for general productivity and mixed workloads. It wins multi-core tests like Cinebench R23 and Geekbench multi-core, indicating better sustained performance across diverse tasks. Its 15.1% lead in PassMark physics and 10.5% lead in extended instructions make it the better choice for simulation, scientific computing, and applications that use specialized instruction sets. The 8.3% advantage in prime number finding also points to strength in algorithmic and cryptography-adjacent workloads.

The AMD Ryzen 7 5825U is the winner for raw integer and floating-point computation. Its 10.5% lead in integer math and 4.4% lead in floating-point math show that workloads heavily dependent on arithmetic operations will run faster on the 8-core part. The 4.3% win in Cinebench R15 multi-core also suggests that older multi-threaded applications may favor the Ryzen 7. The Ryzen 7’s 3.2% lead in Geekbench single-core is notable for lightly-threaded responsiveness.

For memory and data tasks, the Ryzen 5 6600H wins data compression by 3.6% and data encryption by 1.3%, while random string sorting also goes to the Ryzen 5 by 1.5%. The Ryzen 5 6600H is therefore the stronger choice for database work, file compression, and encryption-heavy tasks. The Ryzen 7 5825U offers no wins in these data-centric benchmarks, making the Ryzen 5 the better all-rounder for mixed office and content-creation workloads.

Specification Differences

The core and thread counts are the most obvious difference. The AMD Ryzen 5 6600H has 6 cores and 12 threads, while the AMD Ryzen 7 5825U has 8 cores and 16 threads. The base clock speeds differ significantly, with the Ryzen 5 running at 3.30 GHz compared to the Ryzen 7’s 2.00 GHz. Both processors share the same 4.50 GHz boost clock. The TDP is a major differentiator: the Ryzen 5 6600H is rated at 45 watts, while the Ryzen 7 5825U is rated at 15 watts.

The socket types differ, with the Ryzen 5 using AMD Socket FP7 and the Ryzen 7 using AMD Socket FP6. Memory support also diverges: the Ryzen 5 supports DDR5 with 76.8 GB/s bandwidth, while the Ryzen 7 supports DDR4 with 51.2 GB/s bandwidth. Both use dual-channel memory buses. The PCIe interface differs as well, with the Ryzen 5 offering Gen 4 with 20 lanes, while the Ryzen 7 offers Gen 3 with 16 lanes. ECC memory support is present only on the Ryzen 7 5825U. The integrated graphics differ, with the Ryzen 5 featuring Radeon 660M and the Ryzen 7 featuring Radeon Vega 8.

Architecture Differences

The two processors come from different architectural generations. The AMD Ryzen 5 6600H is based on Zen 3+ architecture with the codename Rembrandt, part of the 6000 series. The AMD Ryzen 7 5825U uses the older Zen 3 architecture with the codename Barcelo, from the 5000 series. The manufacturing process differs: the Ryzen 5 is built on a 6 nm node, while the Ryzen 7 uses a 7 nm node. Both are fabricated by TSMC.

The die sizes are close, with the Ryzen 5 measuring 208 mm² and the Ryzen 7 measuring 180 mm². The Ryzen 7 5825U has a listed transistor count of 10,700 million, while the Ryzen 5 6600H does not have a disclosed transistor count. The cache configurations are identical, with both featuring 64 KB of L1 cache per core, 512 KB of L2 cache per core, and 16 MB of shared L3 cache. Neither processor has a 3D V-Cache option. The release dates differ, with the Ryzen 7 5825U released on 2022-01-05, while the Ryzen 5 6600H has no listed release date.

The Verdict

The data points to the AMD Ryzen 5 6600H as the better buy for most users. It wins 13 of 17 benchmarks, holds a higher average score (25550 vs 25446), and achieves these wins despite having 2 fewer cores and 4 fewer threads. Its 45-watt TDP, combined with DDR5 memory support and PCIe Gen 4, indicates a more modern platform that delivers superior performance in a wider range of tasks. The 15.1% lead in physics and 10.5% lead in extended instructions make it the preferred choice for technical and scientific applications.

The AMD Ryzen 7 5825U is the pick for users who prioritize raw arithmetic throughput over everything else. Its 10.5% win in integer math and 4.4% win in floating-point math are significant for number-crunching applications like financial modeling, data analysis, and certain types of rendering. The 15-watt TDP makes it a better fit for fanless or ultra-portable designs, and the ECC memory support is a hard requirement for certain professional and server-adjacent workloads. The Ryzen 7 also has a release date, making its availability more concrete.

The choice comes down to workload type. For a general-purpose laptop that handles everything from office work to content creation to light scientific computing, the AMD Ryzen 5 6600H is the stronger performer. For a machine dedicated to computation-heavy tasks that scale with cores, or for systems requiring ECC memory and minimal power draw, the AMD Ryzen 7 5825U is the justified alternative. The Ryzen 5’s higher base clock, newer architecture, and faster memory support give it the edge in most real-world scenarios.