Intel Atom P5342 vs Intel Xeon E-2136 Comparison

The Intel Atom P5342 and Intel Xeon E-2136 deliver nearly identical application performance, but they achieve that parity through entirely different design philosophies. The Atom P5342 wins all six head-to-head benchmark comparisons, yet its margins are razor-thin, ranging from 0.7% to 1.3%. Both processors sit at the 53rd percentile among all CPUs, and their average benchmark scores are separated by just 24 points — 3217 for the Atom versus 3193 for the Xeon. This is a contest decided by fractions, not fundamentals, making the choice between them a matter of platform priorities rather than raw capability.

Head-to-Head Benchmarks

The Atom P5342 takes every single benchmark in this comparison, but the victories are marginal across the board. In Cinebench R15 multi-core, the Atom scores 1121 against the Xeon's 1112, a 0.8% advantage. The single-core R15 result is the largest gap in the entire comparison: the Atom's 158 beats the Xeon's 156 by 1.3%. Moving to Cinebench R20, the Atom posts 4671 multi-core and 659 single-core, while the Xeon manages 4636 and 654 respectively — both 0.8% wins for the Atom. The pattern holds in Cinebench R23, where the Atom's 11122 multi-core and 1570 single-core outperform the Xeon's 11040 and 1558 by 0.7% and 0.8% respectively.

The consistency of these margins is notable. No benchmark shows either chip breaking away from the other by more than 1.3 percentage points. The Atom P5342's biggest win, the R15 single-core test, is still a negligible real-world difference. The Xeon E-2136, despite having fewer cores and a smaller cache, trails by such small amounts that the scores are statistically indistinguishable in practical use. The data suggests that for any given workload, users would be hard-pressed to notice which processor is installed based on performance alone.

What makes these results striking is the architectural chasm between the two chips. The Atom achieves its scores with 16 cores and 16 threads, while the Xeon does nearly the same work with only 6 cores and 12 threads. The Xeon's higher clock speeds — 3.30 GHz base and 4.50 GHz boost versus the Atom's 2.20 GHz base — compensate for its core-count deficit. The result is a near-perfect performance tie, with the Atom's extra parallelism offset by the Xeon's superior per-core throughput. Benchmark results indicate that in this matchup, the multi-core advantage of the Atom is almost exactly canceled by the single-core strength of the Xeon.

Architecture Differences

The two processors represent opposite ends of Intel's design spectrum. The Atom P5342 uses the Snow Ridge codename and belongs to the Atom (Tremont) generation, built on a 10 nm process node. The Xeon E-2136 is a Coffee Lake-S WS part from the Xeon E-2100 series, fabricated on a 14 nm node. This process gap is significant: the Atom's 10 nm node allows it to pack 16 cores into a 71 W TDP, while the Xeon's 14 nm node requires 80 W to drive just 6 cores.

Core and thread counts diverge sharply. The Atom offers 16 cores and 16 threads with no hyper-threading, while the Xeon provides 6 cores and 12 threads with hyper-threading enabled. Cache layouts also differ fundamentally. The Atom allocates 64 KB of L1 per core and 4.5 MB of L2 per module, with no L3 cache. The Xeon uses 64 KB of L1 per core, 256 KB of L2 per core, and 12 MB of shared L3. The Xeon's die size is listed at 154 mm², while the Atom's die size is not specified.

Memory support is identical in specification: both support DDR4, both use dual-channel memory buses, and both deliver 42.7 GB/s of memory bandwidth. Both also support ECC memory, a requirement for server and workstation deployments. PCIe connectivity matches as well, with both offering Gen 3 and 16 lanes (CPU only). The Xeon includes integrated graphics in the form of UHD Graphics P630, while the Atom has no integrated graphics (N/A). Sockets differ completely: the Atom uses Intel BGA 2106, which is soldered, while the Xeon uses Intel Socket 1151, which is replaceable. The Atom's production status is Active, whereas the Xeon is End-of-life. The Xeon's launch date is 2018-07-11, while the Atom arrived later on 2022-06-05.

FAQ

Q: Which processor has more cores?

A: The Intel Atom P5342 has 16 cores and 16 threads, while the Intel Xeon E-2136 has 6 cores and 12 threads.

Q: How do the single-core benchmark scores compare?

A: The Atom P5342 wins every single-core test. Its best margin is 1.3% in Cinebench R15 (158 versus 156). In R20, it scores 659 versus 654 (0.8% ahead), and in R23, 1570 versus 1558 (0.8% ahead).

Q: Is there any benchmark where the Xeon E-2136 wins?

A: No. In the six head-to-head benchmarks provided, the Atom P5342 wins all six. The Xeon's closest result is a 0.7% deficit in Cinebench R23 multi-core.

Q: What is the TDP difference between the two chips?

A: The Atom P5342 has a TDP of 71 W, while the Xeon E-2136 has a TDP of 80 W. The Atom delivers more cores at a lower power envelope.

Q: Do both processors support ECC memory?

A: Yes, both the Atom P5342 and the Xeon E-2136 support ECC memory, and both use DDR4 with dual-channel memory buses and 42.7 GB/s bandwidth.

Q: Which processor has integrated graphics?

A: The Xeon E-2136 includes UHD Graphics P630. The Atom P5342 has no integrated graphics, listed as N/A.

Specification Differences

The two processors differ in nearly every physical and architectural specification. Core count is the most obvious divergence: 16 cores for the Atom versus 6 for the Xeon. Thread counts follow, with 16 threads on the Atom and 12 on the Xeon. Base clock speeds differ substantially, with the Atom at 2.20 GHz and the Xeon at 3.30 GHz. The Xeon has a boost clock of 4.50 GHz, while the Atom has no boost clock listed. TDP favors the Atom at 71 W versus the Xeon's 80 W.

Socket compatibility is entirely different: the Atom uses Intel BGA 2106, and the Xeon uses Intel Socket 1151. Process nodes separate the two by a generation, with the Atom on 10 nm and the Xeon on 14 nm. Codename and generation identifiers also diverge: Snow Ridge (Atom/Tremont) versus Coffee Lake-S WS (Xeon E/Coffee Lake). The Xeon has a listed die size of 154 mm², while the Atom's die size is not specified. Cache allocation differs: the Atom has 4.5 MB L2 per module with no L3, while the Xeon has 256 KB L2 per core and 12 MB shared L3. The Xeon includes UHD Graphics P630, while the Atom has N/A for integrated graphics. Production status separates the two as Active versus End-of-life. Release dates are 2022-06-05 for the Atom and 2018-07-11 for the Xeon. The launch MSRP for the Atom is $708, and for the Xeon it is $289. Part numbers also differ: SRL3T for the Atom and SR3WW for the Xeon.

The Verdict

The data points to a clear conclusion: the Intel Atom P5342 is the better processor on benchmark performance, winning all six head-to-head comparisons. Its margins are small, but they are consistent across every test. The Atom also offers twice the core count at a lower TDP (71 W versus 80 W), and it is an active production part, while the Xeon is end-of-life. However, the Xeon E-2136 counters with a significantly higher boost clock (4.50 GHz versus none listed), a shared L3 cache of 12 MB, and integrated graphics, which the Atom lacks entirely. The Xeon's launch MSRP is also lower at $289 versus $708, though that figure does not account for availability or platform costs.

For users prioritizing raw performance in the benchmarks, the Atom P5342 is the winner. For users who need integrated graphics, a replaceable socket, or a larger shared cache, the Xeon E-2136 holds specific advantages. The Atom's 53rd percentile ranking and average benchmark score of 3217 place it slightly ahead of the Xeon's 3193 average. The nearest rivals for the Atom include the AMD Ryzen 3 PRO 5350GE and AMD Ryzen 7 4800U, both with average scores of 3218 and 0% delta, and the Intel Core i5-1240P at 3202 with a 0.5% delta. The Xeon's nearest rivals include the Intel Core i7-9700E at 3197 with a -0.1% delta and the Intel Core i3-13100T at 3198 with a -0.2% delta.

Where Each One Wins

The Atom P5342 wins in every multi-core and single-core benchmark in this comparison, making it the default choice for performance-oriented workloads. Its 16 cores provide a structural advantage in threaded tasks, even if the benchmark margins are slim. The Atom is also the more power-efficient option, delivering more cores at 71 W compared to the Xeon's 80 W. For new deployments, the Atom's Active production status and newer release date (2022 versus 2018) make it the more future-proof selection.

The Xeon E-2136 wins in areas outside the benchmark suite. Its integrated UHD Graphics P630 provides display output capabilities that the Atom cannot offer. The Socket 1151 form factor allows for processor replacement, unlike the soldered BGA 2106 on the Atom. The Xeon's 12 MB shared L3 cache may benefit workloads that rely on large, frequently accessed data sets. The higher base clock of 3.30 GHz and boost clock of 4.50 GHz give it an edge in lightly threaded, latency-sensitive tasks, even though the benchmark scores do not reflect a definitive win. For users with existing Socket 1151 platforms or those requiring integrated graphics, the Xeon is the practical pick despite its benchmark deficit.