AMD Ryzen 7 PRO 5750G vs Intel Core i9-9900 Comparison

The AMD Ryzen 7 PRO 5750G and Intel Core i9-9900 are both 8-core, 16-thread desktop processors, but they represent fundamentally different design eras. The data shows a split decision: each CPU wins three of the six head-to-head benchmarks, with the AMD part dominating older Cinebench R15 workloads and Geekbench single-core, while the Intel part takes newer Cinebench R23 tests and Geekbench multi-core. The average benchmark scores are close—4296 for the AMD versus 4163 for the Intel—placing both in a similar performance tier, with the Ryzen sitting at the 58th percentile of all CPUs and the Core i9 at the 57th.

Where Each One Wins

The benchmark results indicate a clear generational split in workload favoritism. The AMD Ryzen 7 PRO 5750G wins decisively in Cinebench R15, both multi-core and single-core, with margins of 43.7% and 25.5% respectively. This suggests the Zen 3 architecture has a substantial advantage in legacy rendering workloads that are less optimized for newer instruction sets or memory latencies. The AMD part also wins Geekbench single-core by 17.1%, indicating superior per-thread performance in that specific test suite.

The Intel Core i9-9900, conversely, dominates the newer Cinebench R23 workloads. It leads multi-core by 10% and single-core by 21.3%, which is a notable reversal from the R15 results. This indicates that Cinebench R23’s updated code path favors the Intel architecture’s higher boost clock and design traits. The Intel part also edges out a narrow 2.8% win in Geekbench multi-core, showing that in modern multi-threaded scenarios, the older Coffee Lake design remains competitive. The data suggests the Intel CPU is better suited for contemporary rendering and productivity tasks, while the AMD CPU excels in older software and specific single-threaded workloads.

Architecture Differences

The two processors are built on starkly different process nodes and architectural philosophies. The AMD Ryzen 7 PRO 5750G uses a 7 nm process at TSMC, packing 10,700 million transistors into a 180 mm² die. Its core architecture is Zen 3, codenamed Cezanne, and it belongs to the 5000 series. The Intel Core i9-9900, in contrast, uses a 14 nm process at Intel, with a die size of 180.3 mm², and is based on the Coffee Lake architecture, specifically Coffee Lake-R.

Cache configurations differ significantly. The AMD part provides 512 KB of L2 cache per core and a 16 MB L3 cache, while the Intel part has a smaller 256 KB L2 per core but also a 16 MB shared L3 cache. Both support dual-channel DDR4 memory, but the AMD processor has a higher theoretical memory bandwidth of 51.2 GB/s compared to the Intel’s 42.7 GB/s. The AMD chip also supports ECC memory, which the Intel chip does not. Both use PCIe Gen 3 with 16 CPU lanes, and both have integrated graphics—the AMD with Radeon Vega 8 and the Intel with UHD Graphics 630.

Clock speeds reveal a trade-off. The Intel Core i9-9900 has a lower base clock of 3.10 GHz but a significantly higher boost clock of 5.00 GHz. The AMD Ryzen 7 PRO 5750G starts at 3.80 GHz base but boosts to only 4.60 GHz. The Intel part is also end-of-life, while the AMD part remains active in production. Notably, the Intel part has a launch MSRP of $423, while the AMD part has no listed launch MSRP. Neither CPU has an unlocked multiplier, meaning overclocking is not officially supported on either platform.

Head-to-Head Benchmarks

The most dramatic delta in the entire comparison is in Cinebench R15 multi-core, where the AMD Ryzen 7 PRO 5750G scores 1956 against the Intel Core i9-9900’s 1361. This 43.7% advantage is the single largest margin of any test. In Cinebench R15 single-core, the AMD part again wins, scoring 241 versus 192, a 25.5% lead. These results are striking given that both chips have identical core and thread counts, indicating that the Zen 3 architecture is vastly more efficient in this legacy workload.

The tables turn entirely in Cinebench R23. Here, the Intel Core i9-9900 scores 13509 in multi-core, beating the AMD’s 12157 by 10%. In single-core, the Intel part scores 1907 against the AMD’s 1500, a 21.3% margin. This is a complete inversion of the R15 results, suggesting that Cinebench R23’s newer compiler and optimizations leverage the Intel’s higher peak boost clock of 5.00 GHz far more effectively. The Intel’s advantage in single-core R23 is particularly pronounced, nearly matching the AMD’s R15 single-core lead.

Geekbench results are more nuanced. In Geekbench multi-core, the Intel Core i9-9900 wins narrowly with 8175 versus 7947, a mere 2.8% delta. This is a close contest, indicating that in this particular multi-threaded test, the two CPUs are nearly equivalent. However, in Geekbench single-core, the AMD Ryzen 7 PRO 5750G wins convincingly with 1976 versus 1687, a 17.1% lead. The AMD part’s single-core Geekbench score is actually higher than its Cinebench R23 single-core score relative to the Intel, showing that the AMD architecture has strengths in certain integer and floating-point workloads that Cinebench R23 does not capture.

The Verdict

The data presents no universal winner; it instead reveals two CPUs optimized for different software environments. For users whose workloads are primarily based on older rendering engines or applications that mirror Cinebench R15’s characteristics, the AMD Ryzen 7 PRO 5750G is the clear choice. Its 43.7% multi-core and 25.5% single-core leads in that test are decisive, and its 17.1% Geekbench single-core advantage further cements its position for legacy single-threaded tasks.

For those running modern Cinebench R23 workloads, the Intel Core i9-9900 is the better performer. Its 10% multi-core and 21.3% single-core wins in that benchmark are substantial, and its narrow 2.8% Geekbench multi-core victory indicates it handles contemporary multi-threaded applications slightly better. The Intel part also has the advantage of a higher boost clock at 5.00 GHz, which likely contributes to its R23 performance.

The average benchmark scores tell a story of near-parity: the AMD part averages 4296 versus the Intel’s 4163, a difference of only about 3%. The nearest rivals for each CPU confirm this close positioning. The AMD’s closest rival, the Intel Core i7-7820X, is only 0.6% behind, while the Intel’s closest rival, the AMD Ryzen 9 5980HS, is 1% behind. This indicates that both CPUs sit in a tightly contested performance band. Ultimately, the choice depends on which benchmark suite best represents the user’s actual applications, not on overall superiority.

FAQ

Q: Which CPU has the higher boost clock?

A: The Intel Core i9-9900 has a boost clock of 5.00 GHz, while the AMD Ryzen 7 PRO 5750G boosts to 4.60 GHz.

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

A: The Intel Core i9-9900 wins with a score of 13509, which is 10% higher than the AMD Ryzen 7 PRO 5750G’s score of 12157.

Q: Is the AMD Ryzen 7 PRO 5750G faster in any single-core test?

A: Yes, the AMD part wins both Cinebench R15 single-core (241 vs 192, a 25.5% lead) and Geekbench single-core (1976 vs 1687, a 17.1% lead).

Q: What is the memory bandwidth difference between the two processors?

A: The AMD Ryzen 7 PRO 5750G has a memory bandwidth of 51.2 GB/s, while the Intel Core i9-9900 has 42.7 GB/s.

Q: Does either processor support ECC memory?

A: Only the AMD Ryzen 7 PRO 5750G supports ECC memory; the Intel Core i9-9900 does not.

Q: What is the manufacturing process for each CPU?

A: The AMD Ryzen 7 PRO 5750G uses a 7 nm process from TSMC, while the Intel Core i9-9900 uses a 14 nm process from Intel.