Intel Atom x7835RE vs Intel Xeon Platinum 8180 Comparison

The Intel Atom x7835RE and the Intel Xeon Platinum 8180 occupy opposite ends of the Intel product stack, yet their average benchmark scores are nearly identical. The data reveals that the Atom x7835RE edges out the Xeon with an average score of 9430 versus 9406, a negligible 0.3% difference. However, this statistical tie masks a dramatic split in workload performance. The Xeon Platinum 8180 wins every single head-to-head benchmark, while the Atom's overall average is buoyed by its performance in a wider range of tests. This is a classic case where the aggregate score is misleading, and the specific benchmark breakdown tells the real story.

Where Each One Wins

The Xeon Platinum 8180 is the undisputed champion in every CPU-intensive rendering and compute benchmark listed. In the Cinebench suite, which stresses all cores and threads, the Xeon dominates. Its multi-core scores are consistently about 81.4% higher than the Atom's across R15, R20, and R23 tests. For instance, the Xeon scores 3277 in Cinebench R15 multi-core, while the Atom manages only 609. This trend holds for single-core tests as well, where the Xeon's 462 points in R15 single-core dwarf the Atom's 85 points. The Atom x7835RE does not win any of the six head-to-head benchmarks.

The Atom x7835RE, however, shows its strength in a different arena. Its benchmark profile includes PassMark tests that the Xeon's data lacks entirely. While we cannot directly compare them, the Atom's scores in these tests contribute to its high average. The Atom achieves a PassMark multi-thread score of 7119, a data compression score of 76736, and a floating-point math score of 16236. These results indicate that for specific, less demanding parallel tasks, the Atom is a capable performer, even if it cannot match the raw compute throughput of the server-class Xeon.

Architecture Differences

The two processors are built on fundamentally different architectures. The Atom x7835RE uses the "Amston Lake" architecture with Gracemont cores, fabricated on Intel's 10 nm process. It is a mobile-focused chip with 8 cores and 8 threads, featuring a base clock of 1.30 GHz and a boost clock of 3.60 GHz. Its cache configuration is distinct: 96 KB of L1 per core, 2 MB of L2 per module, and a shared 6 MB L3 cache. The Xeon Platinum 8180, in contrast, is based on the older Skylake-SP architecture, built on a 14 nm process. It is a server/workstation part with 28 cores and 56 threads, running at a base clock of 2.50 GHz and a boost clock of 3.80 GHz. Its cache hierarchy is larger, with 64 KB L1 per core, 1 MB L2 per core, and a substantial 38.5 MB of shared L3 cache.

The memory support also differs. The Atom supports both DDR4 and DDR5 in a single-channel configuration and lists a memory bandwidth of 38.4 GB/s. The Xeon supports only DDR4, and its memory bus and bandwidth details are not provided in the data. A critical difference is ECC memory support: the Xeon supports it, while the Atom does not. The Atom also features integrated graphics (UHD Graphics 32EU) and a PCIe Gen 3 interface with 9 lanes, while the Xeon has no integrated graphics and its PCIe details are not listed. The Xeon's transistor count is listed as 8,000 million, while the Atom's is not specified. These architectural differences explain the performance gulf in compute-heavy tasks, as the Xeon's 28 cores and 56 threads provide a massive parallel processing advantage.

The Verdict

The choice between these two CPUs depends entirely on the workload. The data shows the Xeon Platinum 8180 is the clear winner for any task that leverages multi-core processing, such as 3D rendering, video encoding, or scientific simulation. Its Cinebench scores are uniformly 81.4% higher than the Atom's, making it the only sensible choice for those applications. The Xeon also holds a significant lead in single-core performance, with its R23 single-core score of 4591 being more than five times the Atom's 854.

The Atom x7835RE is not a performance part. It is a low-power, mobile processor with a TDP of just 12 watts compared to the Xeon's 205 watts. Its value proposition lies in efficiency and integrated features, not raw speed. The data shows it is competitive on average only because its benchmark suite includes tests where the Xeon has no recorded scores. For a user needing a compact, low-power system with integrated graphics and support for DDR5 memory, the Atom is a viable option. However, for anyone prioritizing compute performance, the Xeon Platinum 8180 is the definitive choice based on the benchmark results.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Atom x7835RE has an average benchmark score of 9430, which is 0.3% higher than the Xeon Platinum 8180's 9406.

Q: How much faster is the Xeon Platinum 8180 in multi-core rendering?

A: The Xeon is 81.4% faster than the Atom in all Cinebench multi-core tests. For example, in Cinebench R23, the Xeon scores 32520 while the Atom scores 6051.

Q: Does the Atom x7835RE win any head-to-head benchmark?

A: No. The Xeon Platinum 8180 wins all six head-to-head benchmarks, including all Cinebench R15, R20, and R23 single-core and multi-core tests.

Q: What are the core and thread counts for each processor?

A: The Atom x7835RE has 8 cores and 8 threads, while the Xeon Platinum 8180 has 28 cores and 56 threads.

Q: Which processor supports ECC memory?

A: The Xeon Platinum 8180 supports ECC memory, while the Atom x7835RE does not.

Q: What is the difference in their power consumption?

A: The Atom x7835RE has a TDP of 12 watts, whereas the Xeon Platinum 8180 has a TDP of 205 watts.

Head-to-Head Benchmarks

The Xeon Platinum 8180's dominance is absolute in the head-to-head comparison. In Cinebench R15 multi-core, the Xeon scores 3277 against the Atom's 609, a difference of 81.4%. The single-core R15 test shows a similar gap, with the Xeon at 462 and the Atom at 85, also an 81.6% difference. Moving to Cinebench R20, the Xeon's multi-core score of 13658 crushes the Atom's 2541, and its single-core score of 1928 is vastly superior to the Atom's 358. In the most demanding test, Cinebench R23, the Xeon achieves 32520 multi-core and 4591 single-core, while the Atom manages only 6051 and 854 respectively. Every single head-to-head benchmark shows the Xeon leading by a consistent margin of roughly 81.4%, confirming its overwhelming advantage in both parallel and single-threaded workloads.

Specification Differences

The specification sheet highlights the divergent purposes of these two chips. The Atom x7835RE has 8 cores and 8 threads, while the Xeon Platinum 8180 has 28 cores and 56 threads. The Atom's base clock is 1.30 GHz with a boost of 3.60 GHz; the Xeon's base clock is 2.50 GHz with a boost of 3.80 GHz. The Atom's TDP is 12 watts, while the Xeon's is 205 watts. The Atom uses an Intel BGA 1264 socket, while the Xeon uses an Intel Socket 3647. The Atom is built on a 10 nm process with the Amston Lake architecture, while the Xeon uses a 14 nm process with the Skylake-SP architecture. The Atom has a cache of 96 KB L1 per core, 2 MB L2 per module, and 6 MB shared L3. The Xeon has 64 KB L1 per core, 1 MB L2 per core, and 38.5 MB shared L3. The Atom supports DDR4 and DDR5 memory with a single-channel bus and 38.4 GB/s bandwidth; the Xeon supports DDR4 with no listed bus or bandwidth. The Atom lacks ECC support, while the Xeon supports it. The Atom has integrated UHD Graphics 32EU and PCIe Gen 3 with 9 lanes; the Xeon has no integrated graphics and no PCIe data listed. The Xeon has 8,000 million transistors, a figure not provided for the Atom. The Atom is a mobile part released in 2024, while the Xeon is a server/workstation part from 2017.