Intel Atom x7211RE vs Intel Xeon E5-2628L v3 Comparison

Where Each One Wins

The benchmark data presents a starkly one-sided picture. The Intel Xeon E5-2628L v3 wins every single head-to-head benchmark recorded in the database. Across five Cinebench tests, the Xeon takes all five, with no wins for the Atom x7211RE. The Atom does not appear to have any benchmark category where it outperforms the Xeon, at least not in the directly comparable tests.

The Xeon's dominance is most pronounced in multi-threaded workloads. In Cinebench R23 multi-core, the Xeon scores 9417 against the Atom's 1804, a difference of 80.8 percent in the Xeon's favor. This pattern holds across all Cinebench versions. The Xeon wins R15 multi-core with 949 versus 181, and R20 multi-core with 3955 versus 757. These results align with the core count disparity: the Xeon offers 10 cores and 20 threads, while the Atom provides 2 cores and 2 threads.

Single-threaded performance also favors the Xeon, though the gap is slightly less extreme in percentage terms. In Cinebench R23 single-core, the Xeon scores 1329 against the Atom's 254, an 80.9 percent advantage. The Xeon wins R20 single-core with 558 versus 106, an 81 percent lead. This means even in lightly threaded tasks, the older Xeon architecture with a lower boost clock (2.50 GHz versus 3.20 GHz) still outperforms the Atom, likely due to the Atom's efficiency-focused design.

The Atom's only measurable strengths are contextual, not comparative. It has a 51st percentile ranking among all CPUs, essentially tied with the Xeon's 50th percentile. Its average benchmark score of 2811 is slightly higher than the Xeon's 2724, but that average includes tests not present in the head-to-head set. The Atom also has a much lower TDP of 6 watts versus 75 watts, which is a power efficiency advantage, but the database does not provide wattage or cooling benchmarks to quantify this beyond the TDP figures.

Architecture Differences

The two processors come from different architectural eras and design philosophies. The Atom x7211RE uses the Amston Lake architecture, built on a 10 nm process, with a Gracemont generation label. The Xeon E5-2628L v3 uses Haswell-EP, built on a 22 nm process. This node difference is significant: newer process technology typically allows for higher efficiency and higher clock speeds at lower power, which the Atom's 3.20 GHz boost clock demonstrates.

Core and thread counts differ substantially. The Atom has 2 cores and 2 threads, while the Xeon has 10 cores and 20 threads. Cache configurations also diverge. The Atom has 96 KB of L1 per core, 2 MB of shared L2, and 6 MB of shared L3. The Xeon has 64 KB of L1 per core, 256 KB of L2 per core, and a significantly larger 25 MB of shared L3. The Xeon also lists 2,600 million transistors and a die size of 356 mm², while the Atom does not have transistor or die size data recorded.

Memory support differs in both type and width. The Atom supports DDR4 and DDR5 memory with a single-channel bus and 38.4 GB/s bandwidth, and it does not support ECC memory. The Xeon supports DDR4 with a quad-channel bus and 59.7 GB/s bandwidth, and it does support ECC memory. This makes the Xeon more suited to memory-intensive server workloads. PCIe connectivity also differs: the Atom provides Gen 3 with 9 lanes, while the Xeon provides Gen 3 with 40 lanes. The Atom includes integrated UHD Graphics 16EU, while the Xeon has no integrated graphics. The Atom targets the mobile segment, while the Xeon targets server and workstation use. The Xeon is end-of-life, while the Atom is active.

The Verdict

The recorded data points to one clear conclusion: the Intel Xeon E5-2628L v3 is the stronger performer in every benchmark category measured. If the decision rests purely on processing power, the Xeon wins outright. Its 10-core, 20-thread design allows it to dominate multi-threaded Cinebench tests, and its single-thread scores also beat the Atom despite a lower boost clock.

The Atom x7211RE is not a competitive alternative in performance terms. It loses every head-to-head test by roughly 80 percent. However, the Atom has its own rationale for existence. Its 6-watt TDP, mobile market segment, and integrated graphics suggest a low-power embedded or portable use case where the Xeon's 75-watt TDP and server-oriented design would be impractical. The Atom's support for DDR5 memory and its 10 nm process also point to a more modern platform.

The Xeon's ECC memory support, quad-channel memory bus, and 40 PCIe lanes make it the appropriate choice for a server or workstation where data integrity, memory bandwidth, and expansion capacity matter. The Atom's single-channel memory and 9 PCIe lanes limit it to lighter roles. The Xeon's end-of-life status is a consideration for long-term deployments, but the database does not provide reliability or longevity metrics. The data says: choose the Xeon for performance, choose the Atom only if power draw and mobile form factor are the primary constraints.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon E5-2628L v3 has 10 cores and 20 threads, while the Intel Atom x7211RE has 2 cores and 2 threads.

Q: Does the Atom x7211RE support ECC memory?

A: No, the Atom x7211RE does not support ECC memory. The Xeon E5-2628L v3 does support ECC memory.

Q: What is the memory bandwidth difference between the two?

A: The Xeon E5-2628L v3 has a quad-channel memory bus with 59.7 GB/s bandwidth, while the Atom x7211RE has a single-channel bus with 38.4 GB/s bandwidth.

Q: Which processor wins in single-threaded performance?

A: The Xeon E5-2628L v3 wins in single-threaded tests. In Cinebench R23 single-core, it scores 1329 against the Atom's 254, an 80.9 percent advantage.

Q: Are these processors from the same manufacturing process?

A: No. The Atom x7211RE is built on a 10 nm process, while the Xeon E5-2628L v3 is built on a 22 nm process.

Q: Does the Atom x7211RE have integrated graphics?

A: Yes, it includes UHD Graphics 16EU. The Xeon E5-2628L v3 has no integrated graphics.

Head-to-Head Benchmarks

The head-to-head data shows a consistent and overwhelming margin for the Xeon E5-2628L v3. In Cinebench R15 multi-core, the Xeon scores 949, the Atom scores 181, and the delta is negative 80.9 percent for the Atom. This means the Atom delivers less than one-fifth of the Xeon's multi-threaded rendering performance in that test.

Cinebench R20 multi-core repeats the pattern. The Xeon scores 3955, the Atom scores 757, again a negative 80.9 percent delta. The absolute gap is 3198 points. In R23 multi-core, the Xeon scores 9417 against the Atom's 1804, a negative 80.8 percent delta, with an absolute gap of 7613 points. The consistency of these deltas (all near 81 percent) suggests the performance ratio is stable across Cinebench versions.

Single-threaded tests show a similar margin. In R20 single-core, the Xeon scores 558, the Atom scores 106, a negative 81 percent delta. In R23 single-core, the Xeon scores 1329, the Atom scores 254, a negative 80.9 percent delta. The single-thread gap is proportionally close to the multi-thread gap, which is notable because the Atom has a higher boost clock (3.20 GHz versus 2.50 GHz). The recorded data does not explain this, but it likely reflects the architectural efficiency of the Haswell cores versus the Gracemont cores in single-threaded integer and floating-point work.

The Xeon also holds a slight edge in overall CPU percentile. The Atom ranks at the 51st percentile among all CPUs, while the Xeon ranks at the 50th. This near tie is misleading given the head-to-head results, but it reflects that the Atom's average benchmark score of 2811 is slightly above the Xeon's 2724. The Atom's average is boosted by PassMark tests, such as data compression at 20820, which are not part of the head-to-head comparison.

Specification Differences

The two processors differ across nearly every specification field. The Atom x7211RE has 2 cores and 2 threads, while the Xeon E5-2628L v3 has 10 cores and 20 threads. Base clocks differ dramatically: the Atom runs at 1.00 GHz, while the Xeon runs at 2000.00 MHz. Boost clocks are closer but still distinct: the Atom boosts to 3.20 GHz, the Xeon to 2.50 GHz. TDP is a major differentiator: the Atom draws 6 watts, the Xeon draws 75 watts.

Sockets are incompatible: the Atom uses Intel BGA 1264, the Xeon uses Intel Socket 2011-3. Process nodes differ: 10 nm for the Atom, 22 nm for the Xeon. The Xeon lists 2,600 million transistors and a 356 mm² die size; the Atom has no recorded transistor or die size data. Cache layouts differ: the Atom has 96 KB L1 per core, 2 MB shared L2, and 6 MB shared L3; the Xeon has 64 KB L1 per core, 256 KB L2 per core, and 25 MB shared L3.

Memory support differs: the Atom supports DDR4 and DDR5 with a single-channel bus at 38.4 GB/s, while the Xeon supports only DDR4 with a quad-channel bus at 59.7 GB/s. ECC support is present only on the Xeon. PCIe lanes differ: the Atom provides 9 lanes, the Xeon provides 40 lanes, both Gen 3. The Atom includes integrated UHD Graphics 16EU; the Xeon has none. Market segments differ: mobile versus server/workstation. Production status differs: the Atom is active, the Xeon is end-of-life. Release dates differ: the Atom launched in 2024, the Xeon in 2014. The launch MSRP of the Atom is $42, while the launch MSRP of the Xeon is $1364.