AMD Ryzen 5 PRO 8540U vs Intel Core i9-11900F Comparison

The AMD Ryzen 5 PRO 8540U and the Intel Core i9-11900F represent two very different approaches to computing: one is a modern, ultra-efficient mobile processor, and the other is a desktop part designed for raw throughput. The benchmark data shows a clear split, with the Intel chip winning 13 of 17 head-to-head tests, but the AMD processor taking the lead in specific single-threaded and efficiency-oriented workloads. This comparison is less about a single winner and more about matching the right architecture to the right task.

FAQ

Q: Which processor has the higher single-thread score?

A: The AMD Ryzen 5 PRO 8540U wins the PassMark single-thread test with a score of 3563, which is 4.4% higher than the Intel Core i9-11900F’s score of 3413. This is a notable result for a mobile chip against a desktop processor.

Q: How much faster is the Intel chip in multi-core workloads?

A: The Intel Core i9-11900F is consistently about 17.6% faster in multi-core Cinebench tests. For example, in Cinebench R23 multi-core, Intel scores 18759 against AMD’s 15456. The Intel chip also has a 17.6% lead in the PassMark multithread score.

Q: Are there any tests where the AMD processor wins?

A: Yes, the AMD Ryzen 5 PRO 8540U wins 4 of the 17 head-to-head tests. It wins in PassMark find prime numbers (66 vs 61, an 8.2% lead), PassMark physics (983 vs 949, a 3.6% lead), and PassMark single-thread (3563 vs 3413, a 4.4% lead).

Q: What is the difference in process technology?

A: The AMD Ryzen 5 PRO 8540U is built on a 4 nm process at TSMC, while the Intel Core i9-11900F uses Intel’s 14 nm process. This is a significant architectural difference that affects power efficiency and transistor density.

Q: What type of memory does each processor support?

A: The AMD Ryzen 5 PRO 8540U supports DDR5 memory with a dual-channel bus and a bandwidth of 89.6 GB/s. The Intel Core i9-11900F supports DDR4 memory, also dual-channel, but with a lower bandwidth of 51.2 GB/s.

Q: Does the Intel processor have integrated graphics?

A: No, the Intel Core i9-11900F has no integrated graphics (null field). In contrast, the AMD Ryzen 5 PRO 8540U includes Radeon 740M integrated graphics.

Where Each One Wins

The Intel Core i9-11900F is the clear winner for content creation and heavy multi-threaded productivity. Its 17.6% advantage across all three Cinebench versions (R15, R20, R23) in both single and multi-core tests makes it the stronger choice for video rendering, 3D modeling, and software compilation where every percentage point of throughput matters. The data shows a massive 32.2% lead in PassMark integer math (83718 vs 56738) and a 28.2% lead in floating-point math (48562 vs 34865), indicating a substantial edge in scientific computing, financial modeling, and engineering simulations. The Intel chip also dominates in data compression, scoring 280847 compared to AMD’s 205703, a 26.8% advantage that will be felt in file archiving and database workloads.

The AMD Ryzen 5 PRO 8540U wins where efficiency and single-thread responsiveness are paramount. Its 4.4% lead in PassMark single-thread (3563 vs 3413) suggests snappier day-to-day application performance and better performance in lightly-threaded games. The 8.2% win in find prime numbers (66 vs 61) and 3.6% win in physics (983 vs 949) point to strengths in specific calculations that may benefit from the Zen 4 architecture’s instruction set. This makes the AMD chip the better option for a thin-and-light laptop where battery life and low heat output are critical, while still offering competitive performance for office work and web browsing.

Architecture Differences

The architectural gap between these two CPUs is generational. The AMD Ryzen 5 PRO 8540U is based on the Zen 4 architecture, codenamed Hawk Point, and is part of the 8000 series. It is built on a 4 nm process at TSMC, a stark contrast to the Intel Core i9-11900F, which uses the Rocket Lake architecture on Intel’s 14 nm process. This process difference is the root cause of their divergent power and performance profiles.

The AMD chip features 6 cores and 12 threads, while the Intel chip has 8 cores and 16 threads. The cache configurations also differ: AMD uses 64 KB of L1 cache per core and 1 MB of L2 cache per core, while Intel uses 80 KB of L1 and 512 KB of L2 per core. Both share 16 MB of L3 cache. The AMD processor has a transistor count of 20,900 million on a 137 mm² die, whereas the Intel chip has a larger 276 mm² die size (transistor count not listed). These physical differences translate into the AMD chip’s 28W TDP versus Intel’s 65W TDP, highlighting the mobile-focused design of the former.

Specification Differences

The two processors differ on nearly every key specification. The AMD Ryzen 5 PRO 8540U has a base clock of 3.20 GHz and a boost clock of 4.90 GHz, while the Intel Core i9-11900F has a lower base clock of 2.50 GHz but a higher boost clock of 5.20 GHz. The core and thread counts differ as expected: AMD has 6 cores/12 threads, Intel has 8 cores/16 threads. The TDP is a major differentiator, with AMD at 28W and Intel at 65W.

The memory support is a generational split: AMD supports DDR5 with a bandwidth of 89.6 GB/s, while Intel supports DDR4 with a bandwidth of 51.2 GB/s. The AMD processor supports ECC memory, a feature the Intel chip lacks. PCIe lanes also differ, with AMD offering Gen 4 with 14 lanes (CPU only) and Intel offering Gen 4 with 20 lanes (CPU only). The AMD chip includes Radeon 740M integrated graphics, while the Intel Core i9-11900F has none. The AMD processor uses AMD Socket FP7, while Intel uses Socket 1200. Production status also differs: AMD is active, Intel is end-of-life. The Intel launch MSRP is $422. The AMD release date is 2024-04-15, while Intel’s is 2021-03-15.

Head-to-Head Benchmarks

The Cinebench tests paint a consistent picture of Intel dominance. In Cinebench R23 multi-core, the Intel Core i9-11900F scores 18759 versus AMD’s 15456, a 17.6% delta. The same 17.6% margin appears in Cinebench R23 single-core (2648 vs 2182), Cinebench R20 multi-core (7878 vs 6491), and Cinebench R15 multi-core (1890 vs 1557). The Intel chip’s single-core lead of 17.7% in Cinebench R15 (266 vs 219) is its largest single-thread margin.

The PassMark suite shows even wider gaps in some areas. The biggest Intel win is in integer math, where it scores 83718 against AMD’s 56738, a 32.2% advantage. Floating-point math shows a 28.2% Intel lead (48562 vs 34865). Data compression favors Intel by 26.8% (280847 vs 205703). The AMD chip fights back in specific tests. Its PassMark single-thread score of 3563 is 4.4% higher than Intel’s 3413. It also wins in find prime numbers (66 vs 61, an 8.2% lead) and physics (983 vs 949, a 3.6% lead). Despite these wins, the overall score tally is 13 wins for Intel and 4 for AMD.

The Verdict

If the workload is heavily multi-threaded and performance is the only metric, the Intel Core i9-11900F is the clear choice. The data shows a consistent 17.6% lead in Cinebench multi-core and an even larger 32.2% lead in integer math. This makes it the superior processor for rendering, video encoding, and complex data analysis where every second of compute time counts. Its 8 cores and 16 threads provide a tangible advantage over the AMD’s 6 cores in these scenarios. For a desktop user who cares about raw throughput and is already on the Socket 1200 platform, the Intel chip is the stronger workhorse.

However, the AMD Ryzen 5 PRO 8540U is not a loser; it is the right tool for a different job. Its 4.4% single-thread win in PassMark and its 28W TDP make it ideal for a mobile workstation or a high-end thin-and-light laptop where battery life and thermals are as important as performance. The support for DDR5 memory and ECC, along with the integrated Radeon 740M graphics, makes it a more complete and modern package for a portable system. The data suggests that the AMD chip offers a better balance of efficiency and capability for users who need a powerful processor on the go, while the Intel chip is for users who demand maximum multi-threaded performance in a desktop environment.