AMD EPYC 7281 vs Intel Atom x7433RE Comparison

Head-to-Head Benchmarks

The recorded data shows a complete sweep for the AMD EPYC 7281 across all five shared benchmark tests, with the Intel Atom x7433RE trailing by a consistent margin. In Cinebench R15 multi-core, the EPYC 7281 scores 1852 against the Atom's 356, a difference of 80.8%. The same delta appears in Cinebench R20 multi-core, where the EPYC reaches 7718 points while the Atom manages 1484, and in Cinebench R20 single-core, the EPYC posts 1089 versus 209. The pattern holds through Cinebench R23: the EPYC 7281 records 18377 in multi-core and 2594 in single-core, while the Atom x7433RE scores 3535 and 499 respectively. Every head-to-head result shows the EPYC 7281 winning by exactly 80.8%, which reflects the massive core and thread disparity between the two parts.

The Intel Atom x7433RE does have its own strengths in the broader benchmark database. Its average benchmark score of 5601 places it at the 61st percentile among all CPUs, slightly ahead of the EPYC 7281's 5315 average and 60th percentile. The Atom's nearest rivals include the Intel Core i7-12700T (average score 5606, delta of -0.1%), the AMD Ryzen 7 PRO 3700 (5610, -0.2%), the Intel Core i9-11900KB (5587, +0.3%), and the Intel Celeron G6900 (5561, +0.7%). These figures indicate that despite losing every head-to-head test to the EPYC, the Atom x7433RE holds its own against a different class of competing processors, particularly in workloads that favor its architecture.

The EPYC 7281 sits in a comparable percentile band, with nearest rivals including the Intel Core i9-10900KF (5316, 0% delta), the AMD Ryzen Threadripper 1920X (5306, +0.2%), the Intel Core i9-9900X (5301, +0.3%), and the Intel Core i9-13900TE (5342, -0.5%). This clustering suggests the EPYC 7281's average benchmark score is representative of a mid-range desktop HEDT performance level, even though its multi-core Cinebench results are far above what the Atom can produce.

When examining the Atom's individual benchmark results, the Passmark suite reveals a mixed profile. The data compression test yields 43671 points, which is a strong showing, but the find prime numbers test produces only 19 points, indicating a severe limitation in that specific integer workload. The floating point math score of 8582 and integer math score of 13054 show moderate capability, while the multithread score of 4159 and single thread score of 1568 reflect its modest core count. The EPYC 7281 does not have corresponding Passmark entries in the database, so direct comparisons in those tests are not available.

FAQ

Q: Which processor wins the most head-to-head benchmark comparisons?

A: The AMD EPYC 7281 wins all five recorded head-to-head tests. The Intel Atom x7433RE has zero wins, while the EPYC 7281 has five wins. Each victory comes with the same 80.8% margin in the EPYC's favor.

Q: How do the two processors compare in average benchmark score and percentile ranking?

A: The Intel Atom x7433RE has an average benchmark score of 5601 and sits at the 61st percentile among all CPUs. The AMD EPYC 7281 has an average score of 5315 and sits at the 60th percentile. Despite losing every head-to-head test, the Atom ranks slightly higher in the overall database.

Q: What are the closest rivals for each processor according to the database?

A: For the Intel Atom x7433RE, the closest rivals are the Intel Core i7-12700T (average score 5606, -0.1% delta), AMD Ryzen 7 PRO 3700 (5610, -0.2%), Intel Core i9-11900KB (5587, +0.3%), and Intel Celeron G6900 (5561, +0.7%). For the AMD EPYC 7281, the closest rivals are the Intel Core i9-10900KF (5316, 0% delta), AMD Ryzen Threadripper 1920X (5306, +0.2%), Intel Core i9-9900X (5301, +0.3%), and Intel Core i9-13900TE (5342, -0.5%).

Q: What is the single biggest performance gap between the two processors?

A: The largest recorded gap is in Cinebench R23 multi-core, where the EPYC 7281 scores 18377 compared to the Atom x7433RE's 3535. The percentage difference is 80.8%, which is the same margin seen across all five head-to-head tests.

Q: Does the Intel Atom x7433RE support error-correcting memory?

A: No. The database lists ECC memory support as false for the Intel Atom x7433RE. The AMD EPYC 7281, by contrast, supports ECC memory, which is typical for server-class processors.

Q: Which processor has a higher single-core Cinebench R23 score?

A: The AMD EPYC 7281 has a much higher single-core score of 2594 in Cinebench R23, while the Intel Atom x7433RE scores 499. The EPYC wins by the same 80.8% margin recorded in all shared tests.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Atom x7433RE uses the Amston Lake architecture, built on a 10 nm process at Intel's foundry, and belongs to the Atom generation with Gracemont cores. It has 4 cores and 4 threads, with a base clock of 1.50 GHz and a boost clock of 3.40 GHz. The thermal design power is 9 watts, reflecting its low-power mobile orientation. The AMD EPYC 7281 uses the Zen architecture with the Naples codename, built on a 14 nm process at GlobalFoundries. It has 16 cores and 32 threads, with a base clock of 2.10 GHz and a boost clock of 2.70 GHz. The thermal design power is 170 watts, which is typical for a server/workstation part.

Cache configurations differ substantially. The Intel Atom x7433RE has 96 KB of L1 cache per core, 2 MB of shared L2 cache, and 6 MB of shared L3 cache. The AMD EPYC 7281 also has 96 KB of L1 cache per core, but its L2 cache is 512 KB per core, and its L3 cache is 32 MB shared. The larger L3 cache on the EPYC is significant for multi-threaded workloads that benefit from shared data locality.

Memory support also diverges. The Intel Atom supports both DDR4 and DDR5 memory, but only through a single-channel memory bus, yielding a memory bandwidth of 38.4 GB/s. ECC memory is not supported. The AMD EPYC 7281 supports DDR4 memory through an eight-channel memory bus, providing memory bandwidth of 170.6 GB/s, and it supports ECC memory. The eight-channel configuration gives the EPYC a massive memory bandwidth advantage over the Atom, which is critical for server workloads.

PCIe support differs as well. The Intel Atom provides PCIe Gen 3 with 9 lanes (CPU only), while the AMD EPYC 7281 provides PCIe Gen 3 without a lane count specified in the database. The Atom includes integrated graphics in the form of UHD Graphics 32EU, while the EPYC has no integrated graphics. The EPYC has an unlocked multiplier, whereas the Atom's multiplier is locked.

The EPYC 7281 has a transistor count of 4,800 million and a die size of 213 mm², while the Atom's transistor count and die size are not listed. The EPYC uses AMD Socket SP3, while the Atom uses Intel BGA 1264. The market segments also differ: the Atom is classified as mobile, while the EPYC is classified as server/workstation.

The Verdict

The data points to a clear division of roles. The AMD EPYC 7281 is decisively superior in every measured multi-core and single-core Cinebench test, with margins of 80.8% across the board. Its 16 cores and 32 threads, combined with 32 MB of L3 cache, eight-channel memory support, and 170.6 GB/s memory bandwidth, make it the obvious choice for compute-heavy server or workstation workloads. The ECC memory support and unlocked multiplier further reinforce its server pedigree. For any task that scales with core count, memory bandwidth, or sustained throughput, the EPYC 7281 is the stronger part.

The Intel Atom x7433RE, despite losing every head-to-head comparison, holds a slightly higher average benchmark score (5601 versus 5315) and a higher percentile ranking (61st versus 60th). Its nearest rivals include mainstream desktop processors like the Intel Core i7-12700T and AMD Ryzen 7 PRO 3700, indicating that its overall performance profile is competitive with those parts in aggregate database scoring. The Atom's 9-watt TDP, support for DDR4 and DDR5, integrated UHD Graphics 32EU, and compact BGA package make it suitable for low-power embedded or mobile applications where thermal and power constraints are primary.

Who should pick which depends on the workload context. For a server or workstation environment requiring high core counts, ECC memory, and massive memory bandwidth, the AMD EPYC 7281 is the clear choice. For power-sensitive mobile or embedded designs where integrated graphics and low thermal output are priorities, the Intel Atom x7433RE offers a balanced profile that still ranks above the EPYC in aggregate benchmark average. The EPYC wins on raw compute, while the Atom wins on efficiency and versatility in low-power scenarios.

Specification Differences

The two processors differ across nearly every specification field. The Intel Atom x7433RE has 4 cores and 4 threads, while the AMD EPYC 7281 has 16 cores and 32 threads. Base clocks are 1.50 GHz for the Atom and 2.10 GHz for the EPYC, while boost clocks are 3.40 GHz and 2.70 GHz respectively. Thermal design power is 9 watts for the Atom and 170 watts for the EPYC.

The process node is 10 nm for the Intel part (foundry: Intel) and 14 nm for the AMD part (foundry: GlobalFoundries). The EPYC has a transistor count of 4,800 million and a die size of 213 mm², while the Atom's figures are not listed. L2 cache is 2 MB shared for the Atom versus 512 KB per core for the EPYC. L3 cache is 6 MB shared for the Atom versus 32 MB shared for the EPYC.

Memory support: the Atom supports DDR4 and DDR5 via a single-channel bus with 38.4 GB/s bandwidth and no ECC. The EPYC supports DDR4 via an eight-channel bus with 170.6 GB/s bandwidth and ECC support. PCIe is Gen 3 with 9 lanes for the Atom, while the EPYC has Gen 3 without a lane count. The Atom includes integrated UHD Graphics 32EU; the EPYC has none.

Sockets differ: Intel BGA 1264 for the Atom, AMD Socket SP3 for the EPYC. The Atom has a locked multiplier; the EPYC is unlocked. The Atom's market segment is mobile, while the EPYC's is server/workstation. The Atom's release date is 2024-04-07, and its launch MSRP is $63. The EPYC's release date is 2017-06-28, and no launch MSRP is recorded. The Atom has a part number of SRNEQ, while the EPYC has none listed. Both are active in production.