AMD Ryzen Embedded R2544 vs Intel Xeon E5-2628 v3 Comparison

The AMD Ryzen Embedded R2544 and the Intel Xeon E5-2628 v3 are a study in contrasts: a modern, low-power embedded part versus a legacy server workhorse. Despite their different architectures, core counts, and intended markets, the benchmark data shows they land in remarkably similar performance territory. The Ryzen holds a narrow but consistent edge across every Cinebench test in this comparison, while the Xeon counters with superior platform capabilities like quad-channel memory and more PCIe lanes.

Head-to-Head Benchmarks

The benchmark results are defined by consistency rather than drama. The AMD Ryzen Embedded R2544 wins all six head-to-head comparisons, but the margins are razor-thin in every case. In Cinebench R15 multi-core, the Ryzen scores 726 against the Xeon’s 723, a lead of just 0.4%. The single-core R15 test is a dead heat at 102 points for both processors, with the Ryzen eking out a nominal win due to rounding.

Moving to Cinebench R20, the pattern repeats. The Ryzen posts 3029 in multi-core versus 3015 for the Xeon, a 0.5% advantage. In single-core, the AMD chip scores 427 compared to 425, again a 0.5% margin. The newer Cinebench R23 workload shows the same story: 7213 for the Ryzen versus 7179 for the Xeon in multi-core, and 1018 versus 1013 in single-core. Both of those are 0.5% deltas.

The average benchmark score reinforces the picture. The Ryzen’s average is 2086, while the Xeon’s is 2076 — a difference of roughly half a percent. These are not the kind of margins that translate into perceptible real-world differences in most workloads. What is notable is that the Ryzen achieves parity while using half the cores: 4 cores and 8 threads versus the Xeon’s 8 cores and 16 threads. The Ryzen’s higher clocks and newer architecture are clearly doing heavy lifting to offset the Xeon’s core-count advantage.

It is also worth placing both chips in the broader CPU landscape. Both sit at the 46th percentile among all CPUs, meaning they are statistically indistinguishable in overall standing. The Ryzen’s nearest rivals include the Intel Core i3-9350KF (average score 2082, a 0.2% gap) and the Intel Xeon W-2123 (2079, a 0.3% gap). The Xeon’s rivals are the same processors, with the Xeon W-2123 (2079) just 0.1% ahead and the Core i3-9350KF (2082) 0.3% ahead. The two chips even appear in each other’s nearest rival lists, confirming how close they are.

Architecture Differences

The architectural gap between these two processors is substantial. The AMD Ryzen Embedded R2544 uses the Zen+ architecture, specifically the Picasso codename, fabricated on a 12 nm process by GlobalFoundries. It integrates 4,940 million transistors on a 210 mm² die. The Intel Xeon E5-2628 v3, by contrast, is built on the older Haswell-EP architecture (codename Haswell-EP) using Intel’s 22 nm process, with 2,600 million transistors on a larger 356 mm² die.

Core counts differ sharply. The Ryzen offers 4 cores and 8 threads, while the Xeon doubles that with 8 cores and 16 threads. Clock speeds favor the Ryzen significantly: it runs at a 3.35 GHz base and 3.70 GHz boost, versus the Xeon’s 2.50 GHz base and 3.00 GHz boost. That 0.85 GHz base-clock advantage and 0.70 GHz boost-clock advantage explain how the Ryzen keeps pace despite having half the physical cores.

Cache hierarchies are also structured differently. The Ryzen allocates 96 KB of L1 cache per core and 512 KB of L2 per core, with a shared 4 MB L3 pool. The Xeon provides 64 KB L1 per core and 256 KB L2 per core, but its shared L3 cache is 20 MB — five times larger than the Ryzen’s. That larger L3 cache is typical of server-oriented designs and helps the Xeon feed its additional cores.

Memory support diverges as well. Both support DDR4 and ECC memory, but the Xeon uses a quad-channel memory bus delivering 68.3 GB/s of bandwidth. The Ryzen makes do with dual-channel memory at 51.2 GB/s. The Xeon’s 40 PCIe Gen 3 lanes (CPU only) dwarf the Ryzen’s 16 lanes, making the Intel part far more expandable for storage or accelerators. The Ryzen counters with integrated Radeon Vega 8 graphics; the Xeon has no integrated graphics at all. The Ryzen is also a 45 W TDP part versus the Xeon’s 85 W TDP, and it remains in active production, while the Xeon is end-of-life. The Ryzen launched in 2022; the Xeon in 2014.

Where Each One Wins

The benchmark data gives the Ryzen a clean sweep, but the practical picture is more nuanced. In every Cinebench test — R15, R20, and R23, both single-core and multi-core — the Ryzen comes out ahead by 0.4% to 0.5%. For workloads that are sensitive to single-threaded performance, such as lightly threaded applications or interactive desktop use, the Ryzen’s higher boost clock of 3.70 GHz gives it an edge. Its 45 W TDP also makes it the lower-power option, which matters in embedded or compact systems where thermal headroom is scarce.

The Xeon’s wins are architectural rather than benchmark-driven. Its 8 cores and 16 threads provide headroom for heavily parallel workloads, even if Cinebench does not show a benefit at this comparison’s settings. The quad-channel memory bus and 68.3 GB/s bandwidth make it better suited for memory-bandwidth-bound tasks like database processing or high-performance computing workloads that stream large datasets. The 40 PCIe lanes allow for extensive I/O expansion, and the 20 MB L3 cache helps with data reuse patterns that fit within that larger pool. The Xeon’s server/workstation market segment also implies platform features like multi-socket support, though the data here does not confirm that directly.

The Ryzen’s integrated Radeon Vega 8 graphics means it can drive a display without a discrete GPU, which is advantageous for embedded systems or compact workstations. The Xeon requires a separate graphics card. The Ryzen’s active production status and 2022 release date also mean it is available for new designs, whereas the Xeon is end-of-life and limited to existing systems or the used market.

FAQ

Q: Which processor is faster in multi-core Cinebench tests?

A: The AMD Ryzen Embedded R2544 wins all three multi-core tests. It scores 726 in R15 versus 723 for the Intel Xeon E5-2628 v3, 3029 in R20 versus 3015, and 7213 in R23 versus 7179. The margins are 0.4% to 0.5%.

Q: How does the Ryzen win with only 4 cores against the Xeon’s 8 cores?

A: The Ryzen’s clocks are substantially higher. It runs at 3.35 GHz base and 3.70 GHz boost, while the Xeon operates at 2.50 GHz base and 3.00 GHz boost. The Ryzen’s Zen+ architecture on a 12 nm process also provides better instructions-per-clock than the older Haswell design on 22 nm.

Q: Does the Xeon have any memory advantages?

A: Yes. The Xeon uses a quad-channel memory bus with 68.3 GB/s bandwidth, while the Ryzen is limited to dual-channel at 51.2 GB/s. Both support DDR4 and ECC memory.

Q: Which processor uses less power?

A: The Ryzen has a 45 W TDP, while the Xeon is rated at 85 W TDP. The Ryzen also features integrated Radeon Vega 8 graphics, eliminating the need for a separate GPU in some systems.

Q: Are these processors comparable in overall performance?

A: Yes. Their average benchmark scores are 2086 for the Ryzen and 2076 for the Xeon, and both sit at the 46th percentile among all CPUs. They even appear in each other’s nearest rival lists, with a delta of -0.5% depending on which is the reference.

Q: Which processor is newer and still in production?

A: The Ryzen was released in 2022 and is marked as Active in production. The Xeon was released in 2014 and is end-of-life. The Ryzen also uses a smaller 12 nm process node versus the Xeon’s 22 nm.

The Verdict

The data paints a clear picture: the AMD Ryzen Embedded R2544 is the better-performing chip in this head-to-head, even if only by a narrow margin. It wins every benchmark, does so with half the cores, uses nearly half the power (45 W versus 85 W), and remains an active product. For any new system design where the CPU’s compute performance is the primary concern, the Ryzen is the logical pick.

The Intel Xeon E5-2628 v3 still has a role, but it is defined by platform capabilities rather than raw speed. The quad-channel memory bus delivering 68.3 GB/s and the 40 PCIe Gen 3 lanes make it the superior option for memory-bandwidth-intensive or I/O-heavy workloads. The 20 MB L3 cache and 8-core/16-thread configuration provide structural advantages for certain server workloads, even if Cinebench does not expose them at this comparison’s settings.

For most users, the Ryzen’s combination of newer architecture, higher clocks, lower power draw, and integrated graphics makes it the more versatile and future-proof choice. The Xeon is a legacy part that remains serviceable in existing infrastructure or specialized use cases that require its memory and I/O capabilities. If the workload fits within the Ryzen’s dual-channel memory and 16 PCIe lanes, there is no reason to choose the Xeon. If it demands quad-channel bandwidth or extensive expansion, the Xeon’s platform advantages justify its continued use.