AMD Ryzen 3 PRO 5475U vs Intel Xeon E-2126G Comparison

The Verdict

The benchmark data splits this comparison into two distinct narratives. The AMD Ryzen 3 PRO 5475U wins seven of the eight head-to-head benchmarks, including every Cinebench test across R15, R20, and R23. Its advantages range from 8.7% to 8.8% in those multi-threaded and single-threaded workloads. The Intel Xeon E-2126G takes only the Geekbench multicore test, where it leads by a substantial 21.2%. For users prioritizing Cinebench-style rendering or general productivity, the AMD processor is the clear choice based on the data. The Xeon’s single win is notable, but it is an outlier compared to the consistent AMD dominance elsewhere. The Xeon E-2126G appeals specifically to workloads that mirror Geekbench’s multicore scaling patterns, where its six physical cores outperform the AMD’s four cores with simultaneous multithreading.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen 3 PRO 5475U is built on the Zen 3 architecture using TSMC’s 7 nm process node, with a die size of 180 mm² and 10,700 million transistors. It features four cores and eight threads, enabling simultaneous multithreading. The Intel Xeon E-2126G uses the older Coffee Lake architecture on Intel’s 14 nm process, with a smaller die size of 154 mm² and no transistor count listed. Crucially, the Xeon has six cores but only six threads — it lacks hyper-threading. This core-versus-thread tradeoff shapes their benchmark behavior. The AMD part combines four cores with eight threads, while the Intel part relies on two additional physical cores without any thread doubling. Cache hierarchies also differ: the AMD has 512 KB of L2 per core and 8 MB of shared L3, while the Intel has 256 KB of L2 per core and a larger 12 MB shared L3. Both support DDR4 memory and dual-channel operation, but the AMD’s memory bandwidth is rated at 51.2 GB/s versus 42.7 GB/s for the Intel. The AMD integrates Radeon Vega 6 graphics, while the Intel includes HD Graphics P630. The AMD supports ECC memory, while the Intel does. The AMD uses the FP6 socket with 8 PCIe Gen 3 lanes, while the Intel uses Socket 1151 with 16 PCIe Gen 3 lanes.

Head-to-Head Benchmarks

The most striking pattern is the near-uniform margin in Cinebench. In Cinebench R15 multicore, the AMD scores 974 against the Intel’s 896, a delta of 8.7%. The R15 singlecore test shows the same 8.7% gap, with 137 versus 126. Moving to R20, the AMD’s multicore score of 4062 beats 3734 by 8.8%, and the singlecore result of 573 beats 527 by 8.7%. R23 multicore follows with 9673 versus 8891, again an 8.8% lead, and R23 singlecore shows 1365 versus 1255, another 8.8% margin. These Cinebench results consistently favor the AMD across every version of the test, indicating that its Zen 3 architecture and simultaneous multithreading deliver a reliable performance edge in this rendering workload.

Geekbench tells a different story. In the multicore test, the Intel Xeon E-2126G scores 5743, while the AMD manages 4525. That is a 21.2% deficit for the AMD — the largest margin in either direction across all benchmarks. This result suggests that Geekbench’s multicore scaling rewards the Xeon’s two additional physical cores more than the AMD’s thread-doubling approach. The singlecore Geekbench test flips back to the AMD, with 1612 versus 1565, a narrower 3% lead. So while the AMD wins single-threaded performance in both Cinebench and Geekbench, the Intel’s multicore advantage appears only in Geekbench, not in any Cinebench variant. The overall benchmark averages reflect this split: the AMD’s average benchmark score is 2865, and the Intel’s is 2842, a difference of only 0.8% according to the nearestRivals data. Despite winning seven individual tests, the AMD’s aggregate score is only marginally higher because the Geekbench multicore loss is so large.

Specification Differences

The two processors differ across nearly every major specification category. The AMD has 4 cores and 8 threads, while the Intel has 6 cores and 6 threads. Base clock speeds are 2.70 GHz for the AMD and 3.30 GHz for the Intel; boost clocks are 4.10 GHz versus 4.50 GHz. Thermal design power differs enormously: the AMD is rated at 15 watts, while the Intel is rated at 80 watts. The AMD uses a 7 nm process, the Intel uses 14 nm. The AMD’s L2 cache is 512 KB per core, the Intel’s is 256 KB per core. The AMD’s total L3 is 8 MB shared, the Intel’s is 12 MB shared. Memory bandwidth is 51.2 GB/s for the AMD versus 42.7 GB/s for the Intel. ECC memory support is present only on the Intel. PCIe lanes differ: the AMD has 8 Gen 3 lanes, the Intel has 16 Gen 3 lanes. The integrated graphics differ as well, with Radeon Vega 6 on the AMD and HD Graphics P630 on the Intel. The AMD is an active mobile part released in 2022, while the Intel is an end-of-life server/workstation part released in 2018. The Intel has a launch MSRP of $255; the AMD has no listed launch MSRP. The AMD’s socket is FP6, the Intel’s is Socket 1151. The AMD’s part number is 100-000000587, the Intel’s is SR3WU.

FAQ

Q: Which processor wins more head-to-head benchmarks?

A: The AMD Ryzen 3 PRO 5475U wins 7 out of 8 benchmarks. The Intel Xeon E-2126G wins only the Geekbench multicore test.

Q: How large is the AMD’s biggest Cinebench advantage?

A: In Cinebench R20 multicore, the AMD scores 4062 versus 3734, an 8.8% lead. The same 8.8% margin appears in R23 multicore and R23 singlecore.

Q: Where does the Intel Xeon E-2126G outperform the AMD?

A: Only in Geekbench multicore, where it scores 5743 versus 4525 — a 21.2% advantage for the Intel.

Q: How do the core counts differ?

A: The AMD has 4 cores and 8 threads. The Intel has 6 cores and 6 threads. The Intel has more physical cores but no simultaneous multithreading.

Q: What is the thermal design power difference?

A: The AMD is rated at 15 watts TDP, while the Intel is rated at 80 watts TDP. This is a 65-watt difference in favor of the AMD’s efficiency profile.

Q: Which processor supports ECC memory?

A: Only the Intel Xeon E-2126G supports ECC memory. The AMD Ryzen 3 PRO 5475U does not list ECC support.

Where Each One Wins

The AMD Ryzen 3 PRO 5475U wins every Cinebench test — R15, R20, and R23 — in both multicore and singlecore modes, with margins of 8.7% to 8.8%. It also wins Geekbench singlecore by 3%. This makes it the stronger choice for rendering tasks, single-threaded applications, and any workload that follows the Cinebench scaling pattern. Its 15-watt TDP also positions it as a low-power option, particularly relevant for mobile systems. The AMD’s 51.2 GB/s memory bandwidth and 8 MB shared L3 cache support its performance in these tests. The Intel Xeon E-2126G wins Geekbench multicore by a wide 21.2% margin, suggesting that applications which parallelize well across physical cores — as Geekbench appears to do — will favor the Intel’s six-core design. The Intel also offers 12 MB of shared L3 cache, 16 PCIe Gen 3 lanes, and ECC memory support, making it a more feature-complete server or workstation part despite its end-of-life status. The data shows no single processor dominates all workloads; the AMD leads in aggregate benchmark average by 0.8%, but the Intel’s Geekbench multicore victory represents a significant niche. For Cinebench-style rendering and general single-threaded performance, the AMD is the data-backed pick. For multicore Geekbench-style workloads and server-oriented features like ECC, the Intel holds the advantage.