AMD Ryzen 7 5825U vs AMD Ryzen 7 6800H Comparison

The AMD Ryzen 7 6800H and AMD Ryzen 7 5825U are both 8-core, 16-thread mobile processors, but they target very different power envelopes. The 6800H is a 45 W part built for performance laptops, while the 5825U is a 15 W chip designed for efficiency-focused ultrabooks. Benchmark data shows a consistent and often substantial performance advantage for the 6800H across every single test, with the 5825U failing to secure a single win in the head-to-head comparison. The data reveals that the 6800H is not just faster; it is dramatically faster in multi-threaded workloads, while the 5825U’s advantage lies entirely in its lower power consumption and platform features.

Head-to-Head Benchmarks

The most striking result is the sheer dominance of the 6800H in multi-core workloads. In Geekbench multicore, the 6800H scores 9642 against the 5825U’s 7288, a 32.3% lead. This trend continues in Cinebench R23 multicore, where the 6800H’s 13094 score eclipses the 5825U’s 10152 by 29%. The PassMark multithread test tells a similar story, with the 6800H scoring 23060 versus 18131, a 27.2% advantage. These are not marginal differences; they represent a clear class separation in sustained, heavily-threaded tasks like video rendering or code compilation.

The 6800H’s advantage is not limited to raw core count scaling. Even in single-threaded tests, which are less sensitive to power limits, the 6800H leads. In Cinebench R23 single-core, it scores 1542 versus 1452, a 6.2% win. Geekbench single-core shows a similar 8.8% lead (1761 vs 1618). PassMark single-thread results are closer, with the 6800H at 3212 and the 5825U at 3053, a 5.2% difference. These results suggest the 6800H’s higher boost clock of 4.70 GHz, compared to 4.50 GHz on the 5825U, provides a tangible, if modest, benefit in lightly-threaded applications.

Some of the largest deltas appear in specialized workloads. The PassMark extended instructions test shows a massive 39.7% lead for the 6800H (20114 vs 14394), indicating a significant advantage in workloads that utilize advanced CPU instruction sets. Similarly, the PassMark physics test shows a 35.1% gap (1046 vs 774), and data compression shows a 32.4% gap (293929 vs 221938). Even in integer math, where the gap is relatively smaller, the 6800H still leads by 17.7% (85397 vs 72577). The only test where the 5825U comes within striking distance is PassMark find prime numbers, where the 6800H’s 57-point score is only 18.8% higher than the 5825U’s 48 points.

Across all 17 head-to-head benchmarks, the 6800H wins every single one. The data is unambiguous: any user prioritizing raw performance, especially in multi-threaded or instruction-heavy workloads, will find the 6800H to be the vastly superior option. The 5825U’s performance is respectable for a 15 W part, but it is consistently outpaced by margins ranging from 4.5% to nearly 40%.

FAQ

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

A: The AMD Ryzen 7 6800H is significantly faster. It leads by 29% in Cinebench R23 multicore (13094 vs 10152), 32.3% in Geekbench multicore (9642 vs 7288), and 27.2% in PassMark multithread (23060 vs 18131).

Q: How do the two chips compare in single-threaded performance?

A: The 6800H holds a consistent, though smaller, lead. It wins Cinebench R23 single-core by 6.2% (1542 vs 1452) and PassMark single-thread by 5.2% (3212 vs 3053).

Q: Which CPU has a higher boost clock?

A: The AMD Ryzen 7 6800H has a higher boost clock of 4.70 GHz, compared to the 5825U’s 4.50 GHz. This likely contributes to its single-threaded performance advantage.

Q: What are the TDP differences between these processors?

A: The 6800H has a TDP of 45 W, while the 5825U has a TDP of 15 W. This indicates the 6800H is designed for higher sustained performance at the cost of significantly more power.

Q: Do these processors support the same memory type?

A: No. The 6800H supports DDR5 memory, while the 5825U supports DDR4 memory. This is a key platform difference.

Q: Which processor has a better integrated GPU?

A: The 6800H features the Radeon 680M integrated graphics, while the 5825U uses the Radeon Vega 8. The benchmark data does not include direct iGPU comparisons, but the model names differ.

Architecture Differences

The two processors are built on different generations of AMD’s Zen architecture. The 6800H uses the newer Zen 3+ architecture, codenamed Rembrandt, while the 5825U uses the original Zen 3 architecture, codenamed Barcelo. This architectural generation gap is a primary driver of the performance differences. The 6800H is manufactured on a more advanced 6 nm process node from TSMC, whereas the 5825U uses a 7 nm process from the same foundry. The smaller node generally allows for better power efficiency and potentially higher clock speeds.

Both CPUs feature 8 cores and 16 threads, with identical cache configurations: 64 KB of L1 cache per core, 512 KB of L2 cache per core, and a shared 16 MB of L3 cache. However, the 6800H’s Rembrandt design is more than just a die shrink. It includes architectural refinements that contribute to its higher performance per clock and its ability to hit higher boost frequencies. The 5825U is a refresh of the Cezanne design, and while it is a capable chip, it does not include the same IPC improvements found in Zen 3+.

The memory controller is another major architectural split. The 6800H natively supports DDR5 memory, while the 5825U is limited to DDR4. This not only affects memory bandwidth but also ties into the overall platform generation. The 6800H also supports PCIe Gen 4 with 20 lanes, while the 5825U is limited to PCIe Gen 3 with 16 lanes. These differences make the 6800H a more modern platform for high-speed storage and discrete GPUs.

The integrated graphics also represent an architectural leap. The 6800H’s Radeon 680M is based on a newer GPU architecture than the 5825U’s Radeon Vega 8. While the fact pack does not provide iGPU benchmark scores, the generational difference in GPU architecture is significant for casual gaming and media tasks. The 6800H also supports ECC memory, a feature absent on the 5825U.

Specification Differences

The specification sheets show clear divergences in nearly every major category. The most fundamental difference is the TDP: the 6800H is rated at 45 W, while the 5825U is rated at just 15 W. This 30 W gap defines their intended use cases. The 6800H’s base clock is 3.20 GHz, which is significantly higher than the 5825U’s 2.00 GHz base clock. The boost clocks also differ, with the 6800H reaching 4.70 GHz versus the 5825U’s 4.50 GHz.

The process node differs, with the 6800H using a 6 nm process and the 5825U using a 7 nm process. The die size is also different: the 6800H has a 208 mm² die, while the 5825U’s die is 180 mm². The 5825U has a listed transistor count of 10,700 million, while the 6800H’s transistor count is not provided. The memory support is a major split: the 6800H uses DDR5, while the 5825U uses DDR4. This leads to a difference in memory bandwidth, with the 6800H capable of 76.8 GB/s versus the 5825U’s 51.2 GB/s.

The sockets are different: the 6800H uses AMD Socket FP7, while the 5825U uses AMD Socket FP6. The PCIe support also differs, with the 6800H offering Gen 4 with 20 lanes and the 5825U offering Gen 3 with 16 lanes. The integrated graphics differ, with the 6800H featuring the Radeon 680M and the 5825U featuring the Radeon Vega 8. Notably, the 5825U supports ECC memory, a feature the 6800H lacks. The 5825U has a release date of January 5, 2022, while the 6800H’s release date is not listed. Both processors are currently marked as Active in production status and have locked multipliers.

The Verdict

The choice between these two processors is clear-cut based on the data. The AMD Ryzen 7 6800H is the definitive winner in every single performance benchmark recorded. Its 45 W TDP and superior architecture deliver massive gains in multi-threaded tasks, with leads of 29% to 39.7% in many tests. It is the obvious choice for any user who needs maximum processing power for demanding applications like video editing, 3D rendering, or scientific computing. Its support for DDR5 and PCIe Gen 4 also makes it a more future-proof platform.

The AMD Ryzen 7 5825U is not a bad processor; it is simply a different type of processor. With a 15 W TDP, it is designed for ultraportable laptops where battery life and thermals are paramount. Its performance is significantly lower than the 6800H, but it does offer features the 6800H lacks, such as ECC memory support. It also has a higher percentile rank (78th) than the 6800H (77th) when compared against all CPUs, though this is a broader metric that includes different workload mixes.

The verdict is not about which CPU is better, but which is better for a specific task. For users who prioritize raw performance and are willing to sacrifice battery life and portability, the 6800H is the only choice. For users who prioritize efficiency, silent operation, and long battery life in a thin-and-light chassis, the 5825U is the appropriate option. The benchmark data overwhelmingly favors the 6800H, but the 5825U’s value proposition lies entirely outside of raw benchmark scores.