CPU Comparison

The AMD EPYC 7F32 and Intel Atom x7433RE occupy opposite ends of the server and embedded processor spectrum. The data shows a decisive performance gap in favor of the EPYC part across all shared Cinebench tests, while the Atom counters with an extremely low power envelope and a feature set aimed at fanless, space-constrained applications. This analysis interprets the benchmark results and architecture differences to clarify where each processor is the logical choice.

Where Each One Wins

The AMD EPYC 7F32 wins every single head-to-head benchmark recorded in the data. In the five Cinebench tests shared between the two processors, the EPYC 7F32 dominates by a margin of roughly 458% in every instance. The largest delta is 458.9% in Cinebench R20 single-core, where it scores 1168 against the Atom’s 209. The smallest delta is 457.7% in Cinebench R23 single-core, with scores of 2783 and 499 respectively. This is not a close contest; it is a categorical sweep.

The Intel Atom x7433RE, despite losing all head-to-head comparisons, has a distinct advantage in a metric not captured by raw compute scores: power consumption. The Atom has a TDP of 9 watts, while the EPYC 7F32 is rated at 180 watts. This 20x difference in thermal design power makes the Atom the only viable option for passively cooled systems, battery-powered edge devices, or environments where heat dissipation is severely limited. The Atom also supports DDR4 and DDR5 memory, while the EPYC is limited to DDR4, giving the Atom a memory flexibility advantage for new designs.

The data also shows the Atom has a unique strength in a specific workload not tested on the EPYC: PassMark data compression, where it scores 43671. While the EPYC has no comparable score in the pack, this indicates the Atom’s architecture is tuned for certain integer-heavy, low-power tasks. However, in all common multi-threaded and single-threaded render tests, the EPYC is the unequivocal winner.

Architecture Differences

The two processors are built on fundamentally different design philosophies. The AMD EPYC 7F32 uses the Zen 2 architecture on a 7 nm process from TSMC, codenamed Rome. It features 8 cores and 16 threads, with a base clock of 3.70 GHz and a boost clock of 3.90 GHz. The chip is physically massive, with a die size of 4x 74 mm² and 15,200 million transistors. Its cache hierarchy is generous: 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of L3 per die, totaling 128 MB of L3 cache. Memory support is eight-channel DDR4 with a peak bandwidth of 204.8 GB/s, and it provides 128 PCIe Gen 4 lanes from the CPU. It lacks integrated graphics, targeting pure compute workloads.

The Intel Atom x7433RE uses the Amston Lake architecture, built on a 10 nm process from Intel, 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 cache is much smaller: 96 KB of L1 per core, 2 MB of shared L2, and 6 MB of shared L3. Memory support is single-channel DDR4 or DDR5, with a bandwidth of 38.4 GB/s. It provides only 9 PCIe Gen 3 lanes, but it does include integrated UHD Graphics with 32 execution units, which the EPYC lacks entirely. The Atom also does not support ECC memory, whereas the EPYC does.

These architectural differences explain the benchmark results. The EPYC’s 8 cores with simultaneous multithreading, massive L3 cache, and eight-channel memory bandwidth are designed for high-throughput server workloads. The Atom’s 4 single-threaded cores, minimal cache, and single-channel memory are optimized for low power and small physical footprint, not for sustained compute performance. The process node difference (7 nm vs 10 nm) also contributes to the EPYC’s efficiency at high clocks, though the Atom’s 9 W TDP remains the defining feature.

The Verdict

The choice between these two processors is strictly determined by application requirements, not performance preference. For any workload that involves rendering, compilation, database processing, or heavy multi-threaded server tasks, the AMD EPYC 7F32 is the only rational choice. Its Cinebench R23 multi-core score of 19718 is more than five times the Atom’s 3535, and its single-core score of 2783 is also five times higher. The EPYC also offers ECC memory, 128 PCIe Gen 4 lanes, and eight-channel memory bandwidth, which are essential for data center reliability and high-speed I/O.

The Intel Atom x7433RE is the correct choice for embedded systems, IoT gateways, industrial controllers, or any device where the 180 W TDP of the EPYC is physically impossible to manage. The Atom’s 9 W TDP allows for fanless designs, and its integrated graphics eliminate the need for a discrete GPU in display-capable applications. Its support for both DDR4 and DDR5 provides future-proofing in memory selection. The data shows it is competitive in low-power integer tasks like data compression, but it is not a general-purpose server CPU.

In summary, the EPYC 7F32 is a high-performance server processor with a launch MSRP of $2100. The Atom x7433RE is a low-power embedded processor with a launch MSRP of $63. The 458% performance deltas in Cinebench confirm they serve entirely different markets. The EPYC wins on every measured performance metric; the Atom wins on power, size, and integration.

FAQ

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

A: The AMD EPYC 7F32 scores 19718, while the Intel Atom x7433RE scores 3535. The EPYC leads by 457.8%.

Q: Can the Intel Atom x7433RE support ECC memory?

A: No. The data lists ECC memory support as false for the Atom, while the EPYC 7F32 supports ECC memory.

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

A: The AMD EPYC 7F32 has a TDP of 180 watts, and the Intel Atom x7433RE has a TDP of 9 watts.

Q: Does the Intel Atom include integrated graphics?

A: Yes, the Atom x7433RE includes UHD Graphics with 32 execution units. The EPYC 7F32 has no integrated graphics.

Q: How many PCIe lanes does each processor provide?

A: The EPYC 7F32 provides 128 PCIe Gen 4 lanes, while the Atom x7433RE provides 9 PCIe Gen 3 lanes.

Q: What is the memory bandwidth of the Intel Atom?

A: The Atom x7433RE has a memory bandwidth of 38.4 GB/s, compared to the EPYC’s 204.8 GB/s.

Head-to-Head Benchmarks

The Cinebench R15 multi-core test shows the EPYC 7F32 scoring 1987 against the Atom’s 356, a delta of 458.1%. This is the smallest percentage win for the EPYC in the shared tests, yet it still represents a more than fivefold advantage. The R15 test is older and less demanding, but the gap remains consistent with newer workloads.

In Cinebench R20 multi-core, the EPYC scores 8281 versus the Atom’s 1484, a 458% lead. This test scales with core count and memory bandwidth, where the EPYC’s 8 cores and 16 threads vastly outperform the Atom’s 4 threads. The R20 single-core test shows a similar story: EPYC scores 1168, Atom scores 209, with a 458.9% delta. The single-core advantage indicates the EPYC’s higher base and boost clocks (3.70/3.90 GHz) are not fully offset by the Atom’s 3.40 GHz boost, due to the architectural efficiency of Zen 2.

The Cinebench R23 multi-core result reinforces the pattern: EPYC 19718, Atom 3535, delta 457.8%. This is the most modern test in the pack, and it confirms the EPYC’s dominance in sustained all-core workloads. The R23 single-core test yields EPYC 2783 and Atom 499, a 457.7% delta. The consistency of the deltas across all five tests, ranging from 457.7% to 458.9%, suggests a fixed performance ratio rather than workload-specific variations.

The data also includes PassMark scores for the Atom only. Its multi-thread score is 4159, single-thread is 1568, and it scores 13054 in integer math and 8582 in floating point math. These numbers are not comparable to the EPYC because no PassMark tests are listed for the EPYC, but they provide context for the Atom’s capabilities. In data compression, the Atom scores 43671, which is its strongest PassMark result, while its weakest is finding prime numbers at 19. These figures indicate the Atom is disproportionately good at memory-bound compression tasks relative to its low power draw, but it cannot compete with the EPYC in any Cinebench workload.