AMD Ryzen 5 5600G vs AMD Ryzen 5 PRO 4655GE Comparison

The AMD Ryzen 5 5600G and AMD Ryzen 5 PRO 4655GE are both 6-core, 12-thread desktop processors on the AM4 socket, yet they deliver strikingly different performance profiles. The 5600G wins 13 of the 15 head-to-head benchmarks, while the PRO 4655GE takes the remaining two — but the PRO chip’s victories are in the most demanding workloads. The data paints a clear picture: the 5600G is the general-purpose performer, while the PRO 4655GE is a specialist in sustained multi-threaded rendering, despite its lower clock speeds and older architecture.

Where Each One Wins

The Ryzen 5 5600G dominates nearly every benchmark category, making it the obvious choice for everyday computing, productivity, and single-threaded tasks. It wins all PassMark tests except one, including data compression (249,302 vs 193,067), integer math (67,344 vs 48,513), and floating-point math (37,830 vs 27,947). Its lead in extended instructions is particularly large at 47%, and it doubles the PRO chip in prime number finding (57 vs 28). For users running office suites, web browsing, or light content creation, the 5600G is consistently ahead.

The Ryzen 5 PRO 4655GE wins only two benchmarks, but they are notable: Cinebench R23 multicore (12,045 vs 10,551) and Cinebench R23 singlecore (1,700 vs 1,409). These are modern, heavily-threaded rendering workloads that stress sustained performance. The PRO chip’s 17.1% single-core advantage in R23 is surprising given its lower boost clock of 4.20 GHz vs 4.40 GHz, suggesting architectural optimizations or power management differences. In multi-core R23, the PRO chip leads by 12.4%, which is the opposite of what its 35W TDP would suggest.

The pattern is clear: the 5600G wins in shorter, bursty workloads (PassMark suite), while the PRO 4655GE wins in longer, sustained rendering tasks (Cinebench R23). This split indicates that thermal design and power delivery play a bigger role than raw clock speeds in extended workloads. The 5600G’s 65W TDP allows higher peak performance, but the PRO chip’s 35W TDP appears to sustain better performance over time in Cinebench’s longer test.

Architecture Differences

The two processors come from different generations and microarchitectures. The Ryzen 5 5600G is part of the 5000 series, built on Zen 3 architecture with the Cezanne codename. The Ryzen 5 PRO 4655GE is from the 4000 series, using Zen 2 architecture with the Renoir codename. Both use a 7 nm process from TSMC, but the 5600G packs 10,700 million transistors on a 180 mm² die, while the PRO chip has 9,800 million transistors on a 156 mm² die.

Cache configuration differs significantly. The 5600G has 64 KB L1 per core and 512 KB L2 per core, with 16 MB of L3 cache. The PRO 4655GE has the same per-core L1 and L2, but only 8 MB of shared L3 cache — half the amount. This halved L3 cache likely explains the 5600G’s superiority in data-heavy PassMark tests, as larger cache reduces memory latency and improves hit rates.

Memory support is identical: both support DDR4 with dual-channel memory and 51.2 GB/s bandwidth. However, the PRO chip supports ECC memory, while the 5600G does not. The PRO chip also offers more PCIe lanes: 20 lanes (Gen 3) vs 16 lanes (Gen 3) on the 5600G. The integrated graphics are the same Radeon Vega 7 on both, but the PRO chip’s lower TDP may limit sustained GPU performance.

The 5600G has an unlocked multiplier, making it overclockable, while the PRO 4655GE is locked. The PRO chip also has a lower base clock of 3.30 GHz vs 3.90 GHz, and a lower boost clock of 4.20 GHz vs 4.40 GHz. These clock differences, combined with the older Zen 2 architecture, should theoretically favor the 5600G — yet the PRO chip wins Cinebench R23, indicating other factors at play.

Head-to-Head Benchmarks

The largest win for the 5600G comes in PassMark find prime numbers, where it scores 57 vs 28 — a 103.6% advantage. This is a compute-intensive test that stresses integer arithmetic and cache performance, where the 5600G’s larger L3 cache and Zen 3 architecture shine. The 5600G also posts a 52% lead in PassMark physics (900 vs 592), a 47% lead in extended instructions (17,334 vs 11,792), and a 42.1% lead in Cinebench R15 multicore (1,724 vs 1,213).

In Cinebench R15 singlecore, the 5600G leads by 33.3% (228 vs 171), showing that its higher boost clock and newer architecture deliver clear single-threaded advantages in older benchmarks. The PassMark multithread test shows a 39.1% lead (19,717 vs 14,171), and integer math comes in at 38.8% (67,344 vs 48,513). Data encryption shows a 31.6% lead (15,247 vs 11,586), while data compression is 29.1% ahead (249,302 vs 193,067). Floating-point math is 35.4% faster (37,830 vs 27,947), and random string sorting is 18.6% ahead (25,354 vs 21,382). Single-thread PassMark shows a 19.4% lead (3,177 vs 2,660).

The PRO 4655GE’s wins are concentrated in Cinebench R23. It scores 12,045 in multicore vs 10,551, a 12.4% advantage, and 1,700 in singlecore vs 1,409, a 17.1% advantage. These are the only two benchmarks where the PRO chip wins, but they are modern and rigorous tests. The R23 multicore result is particularly interesting given that the 5600G wins Cinebench R15 multicore by 42.1%. This suggests the PRO chip scales better with the updated R23 workload, possibly due to power management that allows sustained boost under longer loads.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 5 5600G has a boost clock of 4.40 GHz, while the AMD Ryzen 5 PRO 4655GE has a boost clock of 4.20 GHz.

Q: Does the Ryzen 5 PRO 4655GE support ECC memory?

A: Yes, the PRO 4655GE supports ECC memory, while the Ryzen 5 5600G does not.

Q: What is the L3 cache size difference?

A: The Ryzen 5 5600G has 16 MB of L3 cache, while the Ryzen 5 PRO 4655GE has 8 MB of shared L3 cache.

Q: Which CPU wins Cinebench R23 multicore?

A: The Ryzen 5 PRO 4655GE wins Cinebench R23 multicore with a score of 12,045, compared to 10,551 for the 5600G, a 12.4% advantage.

Q: Are both processors on the same socket?

A: Yes, both use AMD Socket AM4, and both have 6 cores and 12 threads.

Q: Which CPU has more PCIe lanes?

A: The Ryzen 5 PRO 4655GE has 20 PCIe Gen 3 lanes (CPU only), while the Ryzen 5 5600G has 16 lanes.

The Verdict

The data supports a clear recommendation for most users: the AMD Ryzen 5 5600G is the superior processor for general workloads. It wins 13 of 15 head-to-head benchmarks, with massive leads in integer math (38.8%), floating-point math (35.4%), and data compression (29.1%). Its 16 MB L3 cache and Zen 3 architecture deliver consistent advantages across the PassMark suite, and its unlocked multiplier allows overclocking for additional performance. The 5600G is the pick for gaming, everyday productivity, and any workload that benefits from burst performance.

The Ryzen 5 PRO 4655GE is a niche choice for users who prioritize Cinebench R23 performance. It wins both R23 tests, with a 12.4% multicore and 17.1% singlecore advantage, despite its lower clocks and older Zen 2 architecture. Its 35W TDP makes it more power-efficient, and its ECC memory support and 20 PCIe lanes are enterprise-friendly features. However, these advantages are limited to specific rendering workloads and professional use cases. For virtually every other benchmark, the 5600G is significantly faster. Users who run Cinebench R23 regularly or need ECC memory should consider the PRO chip; everyone else should choose the 5600G.

Specification Differences

• Architecture: Zen 3 (Cezanne) vs Zen 2 (Renoir)
• Process Node: Both 7 nm (TSMC), but 5600G has 10,700 million transistors vs 9,800 million
• Die Size: 180 mm² (5600G) vs 156 mm² (PRO)
• L3 Cache: 16 MB (5600G) vs 8 MB shared (PRO)
• Base Clock: 3.90 GHz (5600G) vs 3.30 GHz (PRO)
• Boost Clock: 4.40 GHz (5600G) vs 4.20 GHz (PRO)
• TDP: 65W (5600G) vs 35W (PRO)
• ECC Memory: Not supported (5600G) vs Supported (PRO)
• PCIe Lanes: 16 Gen 3 (5600G) vs 20 Gen 3 (PRO)
• Multiplier: Unlocked (5600G) vs Locked (PRO)
• Release Date: 2021-04-12 (5600G) vs 2022-11-10 (PRO)
• Launch MSRP: $259 (5600G) vs Not available (PRO)