AMD Ryzen 5 PRO 2400G vs Intel Atom C5125 Comparison

The Intel Atom C5125 and AMD Ryzen 5 PRO 2400G occupy the same performance percentile (46th) but arrive from opposite ends of the design spectrum. The Atom is a server-focused, 8-core Tremont part built on Intel’s 10 nm process, while the Ryzen is a desktop 4-core/8-thread Zen chip on GlobalFoundries’ 14 nm node. Benchmark data shows a near-total statistical dead heat across every Cinebench test, with the Atom winning all six head-to-head comparisons by margins of 0.9% to 1%. The average benchmark scores are 2122 for the Atom and 2101 for the Ryzen, a gap of roughly 1%. The decisive differentiators are architectural: core counts, cache layouts, integrated graphics, and platform features.

Head-to-Head Benchmarks

The head-to-head results are remarkably consistent, with the Intel Atom C5125 edging out the AMD Ryzen 5 PRO 2400G in every single test, but never by more than a single percentage point. In Cinebench R15 multicore, the Atom scores 739 against the Ryzen’s 732, a 1% lead. The single-core R15 result is equally tight: 104 versus 103, again a 1% margin. Moving to Cinebench R20, the Atom posts 3081 in multicore versus 3051 for the Ryzen, with the same 1% delta; single-core R20 sees 434 versus 430, a 0.9% edge for the Atom. In Cinebench R23, the pattern holds: 7336 against 7266 in multicore (1% lead) and 1035 against 1025 in single-core (1% lead).

What these numbers reveal is that the two processors are functionally interchangeable in raw compute terms, despite their different architectures. The Atom’s 8 physical cores and the Ryzen’s 4 cores with Simultaneous Multithreading (8 threads total) produce nearly identical throughput. The average benchmark score of 2122 for the Atom versus 2101 for the Ryzen places both within 0.2% of each other’s nearest rivals. For context, the Atom’s closest rival is the Intel Core i7-1160G7 at 2124 (delta -0.1%), while the Ryzen’s closest is the Intel Core i3-8350K at 2096 (delta 0.3%). Both CPUs sit at the 46th percentile of all tested processors, meaning half of all CPUs in the database outperform them, and half underperform.

The single-core results are particularly telling. The Atom’s best single-core score is 1035 in R23, versus 1025 for the Ryzen. This 1% advantage comes despite the Ryzen’s higher base clock (3.60 GHz versus 2.80 GHz) and boost clock (3.90 GHz, which the Atom lacks entirely). The Atom compensates with its newer Tremont microarchitecture, which delivers higher instructions-per-clock than the older Zen design. The multicore results follow the same pattern: the Atom’s 8 cores at a lower clock speed match the Ryzen’s 4 faster cores with SMT.

Architecture Differences

The architectural gulf between these two parts is wide, even though the benchmark scores are close. The Intel Atom C5125 uses the Tremont core design, part of the Parker Ridge codename, built on Intel’s 10 nm process. It features 8 cores and 8 threads, with no boost clock — a fixed 2.80 GHz base frequency. The cache hierarchy is unusual: 64 KB of L1 per core and 4.5 MB of L2 per module. There is no L3 cache. The Ryzen 5 PRO 2400G, by contrast, uses the Zen architecture under the Raven Ridge codename, built on GlobalFoundries’ 14 nm process. It has 4 cores and 8 threads, with a 3.60 GHz base clock and a 3.90 GHz boost clock. Its cache is more conventional: 96 KB L1 per core, 512 KB L2 per core, and 4 MB of shared L3.

The process node difference is significant: 10 nm for Intel versus 14 nm for AMD. This explains how the Atom can match the Ryzen’s performance while running at a much lower clock speed and with a substantially lower TDP. The Atom’s TDP is 50 watts, while the Ryzen’s is 65 watts. Transistor count and die size are only listed for the Ryzen: 4,950 million transistors on a 210 mm² die. The Atom’s transistor count and die size are not provided. The Ryzen also includes integrated Radeon RX Vega 11 graphics, while the Atom has no integrated graphics at all (listed as N/A).

Memory support is identical on paper: both support DDR4 with dual-channel memory buses and identical 46.9 GB/s bandwidth. Both also support ECC memory. PCIe lanes differ: the Atom offers Gen 3 with 16 lanes (CPU only), while the Ryzen offers Gen 3 with 8 lanes (CPU only). The Atom uses the Intel BGA 2106 socket, while the Ryzen uses AMD Socket AM4. The Ryzen has an unlocked multiplier, making it overclockable, while the Atom does not. The Ryzen’s market segment is Desktop, while the Atom is classified as Server/Workstation.

The Verdict

The data presents a clear, if unusual, verdict: these two processors are performance twins with different job descriptions. The Intel Atom C5125 wins all six benchmark comparisons, but the largest margin is 1%, which falls within typical run-to-run variance. The average benchmark scores (2122 versus 2101) and the identical 46th percentile ranking confirm that neither chip holds a meaningful compute advantage. The real decision hinges on platform fit and feature requirements.

The Atom’s 8 cores at a 50-watt TDP make it suited for dense server or workstation deployments where power efficiency and core count matter more than clock speed. The Ryzen’s 4 cores with SMT, a 65-watt TDP, and integrated Vega 11 graphics make it a desktop part that can drive a display without a discrete GPU. The Atom’s 16 PCIe Gen 3 lanes versus the Ryzen’s 8 lanes also favor the server part for I/O-heavy workloads. The Ryzen’s unlocked multiplier and AM4 socket offer upgrade and overclocking paths, while the Atom’s BGA 2106 socket is soldered and fixed.

Neither chip is a clear winner for general-purpose computing. The Atom edges ahead in every benchmark, but the margins are negligible. The Ryzen counters with integrated graphics, a higher clock speed, and overclocking capability. For a system that needs ECC memory, the Atom’s server pedigree and 16 PCIe lanes may be more attractive; for a compact desktop build with no discrete GPU, the Ryzen is the only choice of the two.

Specification Differences

The following specifications differ between the Intel Atom C5125 and the AMD Ryzen 5 PRO 2400G, based solely on the data provided:

• Cores: Atom has 8; Ryzen has 4.
• Threads: Atom has 8; Ryzen has 8 (via SMT).
• Base Clock: Atom at 2.80 GHz; Ryzen at 3.60 GHz.
• Boost Clock: Atom has none; Ryzen has 3.90 GHz.
• TDP: Atom at 50 watts; Ryzen at 65 watts.
• Socket: Atom uses Intel BGA 2106; Ryzen uses AMD Socket AM4.
• Codename: Atom is Parker Ridge; Ryzen is Raven Ridge.
• Generation: Atom is Atom (Tremont); Ryzen is Ryzen 5 (Zen (Raven Ridge)).
• Process Node: Atom on 10 nm; Ryzen on 14 nm.
• Foundry: Atom uses Intel; Ryzen uses GlobalFoundries.
• Transistors: Atom not listed; Ryzen at 4,950 million.
• Die Size: Atom not listed; Ryzen at 210 mm².
• L1 Cache: Atom 64 KB per core; Ryzen 96 KB per core.
• L2 Cache: Atom 4.5 MB per module; Ryzen 512 KB per core.
• L3 Cache: Atom has none; Ryzen has 4 MB shared.
• PCIe: Atom Gen 3, 16 lanes; Ryzen Gen 3, 8 lanes.
• Integrated Graphics: Atom has N/A; Ryzen has Radeon RX Vega 11.
• Market Segment: Atom is Server/Workstation; Ryzen is Desktop.
• Release Date: Atom on 2022-06-05; Ryzen on 2018-05-09.
• Launch MSRP: Atom at $335; Ryzen not listed.
• Multiplier Unlocked: Atom is false; Ryzen is true.
• Part Number: Atom is SRL40; Ryzen is YD240BC5M4MFBYD240BC5FBMPK.

Identical specifications include memory support (DDR4), memory bus (dual-channel), memory bandwidth (46.9 GB/s), ECC memory support (true for both), and the 46th percentile ranking.

FAQ

Q: Which CPU has more cores?

A: The Intel Atom C5125 has 8 cores and 8 threads, while the AMD Ryzen 5 PRO 2400G has 4 cores and 8 threads. The Ryzen uses simultaneous multithreading to match the thread count.

Q: What is the performance difference in Cinebench R23 multicore?

A: The Atom scores 7336 versus the Ryzen’s 7266, giving the Atom a 1% lead. This is the largest multicore margin across all tested Cinebench versions.

Q: Does either CPU have integrated graphics?

A: The AMD Ryzen 5 PRO 2400G includes Radeon RX Vega 11 integrated graphics. The Intel Atom C5125 has no integrated graphics, listed as N/A.

Q: How do the single-core scores compare?

A: The Atom wins all three single-core tests: R15 at 104 versus 103 (1% lead), R20 at 434 versus 430 (0.9% lead), and R23 at 1035 versus 1025 (1% lead).

Q: What are the TDPs of the two chips?

A: The Intel Atom C5125 has a 50-watt TDP, while the AMD Ryzen 5 PRO 2400G has a 65-watt TDP. The Atom achieves similar performance with a lower power envelope.

Q: Which CPU supports ECC memory?

A: Both the Intel Atom C5125 and the AMD Ryzen 5 PRO 2400G support ECC memory. Both also support DDR4 with dual-channel memory and 46.9 GB/s bandwidth.

Where Each One Wins

The Intel Atom C5125 wins every benchmark test in the head-to-head comparison, but the margins are so slim that the practical victories are limited to scenarios where its architectural traits matter. The Atom’s 8 physical cores provide a thread-per-core advantage that avoids SMT contention, which can benefit certain latency-sensitive server workloads. Its 16 PCIe Gen 3 lanes (versus 8 on the Ryzen) support more direct I/O devices, and its 50-watt TDP makes it more power-efficient per core. The Atom’s server/workstation classification, 10 nm process, and lack of a boost clock suggest stable, sustained performance in a fixed-clock environment. The 46th percentile ranking and average score of 2122 place it just above the Ryzen’s 2101.

The AMD Ryzen 5 PRO 2400G wins where platform flexibility and integrated features matter. Its Radeon RX Vega 11 graphics eliminate the need for a discrete GPU in a desktop build. The unlocked multiplier allows overclocking beyond the 3.90 GHz boost clock, which the data shows is already higher than the Atom’s fixed 2.80 GHz. The AM4 socket provides a potential upgrade path within the same platform. The Ryzen’s 4 MB of shared L3 cache and larger per-core L1 (96 KB versus 64 KB) may help with cache-sensitive workloads, though the benchmark data does not isolate this effect. For a desktop user who wants a single chip that can handle both compute and display output, the Ryzen is the only option between the two. For a server or workstation environment prioritizing core count, PCIe lanes, and power efficiency, the Atom’s 8 cores and 16 lanes make it the data-driven pick, despite the near-identical benchmark scores.