CPU Comparison

The Intel Xeon E-2388G and AMD EPYC 7351 are both active server/workstation parts, but they represent fundamentally different design philosophies. Benchmark results show the Intel chip winning every single head-to-head test, albeit by razor-thin margins that rarely exceed 1%. The data positions the Xeon E-2388G as the faster CPU in pure compute benchmarks, yet the EPYC 7351 counters with a dramatically different platform feature set that the benchmarks do not capture.

Head-to-Head Benchmarks

The Intel Xeon E-2388G wins all six recorded benchmark comparisons, but the victories are consistently narrow. In Cinebench R15 multi-core, Intel scores 2009 against AMD's 1989, a 1% advantage. The single-core R15 result shows 283 versus 280, a 1.1% edge for Intel. Moving to Cinebench R20, Intel takes multi-core with 8374 against 8291 (a 1% lead) and single-core with 1181 against 1170 (0.9% ahead). Cinebench R23 mirrors this pattern: Intel's 19939 multi-core score beats AMD's 19742 by 1%, and Intel's 2814 single-core score tops AMD's 2787 by 1%.

The near-identical results are striking given the hardware disparity. The EPYC 7351 has twice the cores and threads, 16 cores/32 threads versus 8 cores/16 threads for the Xeon. Yet Intel's much higher clock speeds erase that core-count advantage. Intel's base clock is 3.20 GHz with a 5.10 GHz boost, while AMD operates at 2.40 GHz base and 2.90 GHz boost. The single-core results are particularly telling: Intel leads by roughly 1% in every single-threaded test, a direct reflection of its superior clock ceiling.

From a percentile standpoint, both CPUs sit at the 61st percentile among all CPUs, and their average benchmark scores are 5805 for Intel and 5710 for AMD. This places them within 1.7% of each other overall, which the head-to-head data confirms. The Xeon E-2388G's nearest rival list includes the AMD EPYC 7351 with a deltaPct of 1.7, while the EPYC 7351's list shows the Intel Xeon W-2175 at -1 and the AMD Ryzen Threadripper 2920X at -0.4. These figures place both chips in a tightly clustered performance tier.

Architecture Differences

The two processors come from entirely different architectural lineages. Intel uses Rocket Lake-E, built on a 14 nm process at Intel's own foundry, with a die size of 276 mm². AMD's EPYC 7351 uses the Zen architecture (codename Naples), also on 14 nm but fabricated by GlobalFoundries, with a die size of 213 mm² and 4,800 million transistors. The core designs could hardly be more different: Intel packs 8 cores with 16 threads into a 95 W TDP, while AMD spreads 16 cores and 32 threads across a 170 W TDP envelope.

Cache hierarchies diverge significantly. Intel provides 80 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3. AMD counters with 96 KB of L1 per core, the same 512 KB of L2 per core, but a much larger 64 MB of shared L3, four times Intel's L3 capacity. This larger cache pool is typical of AMD's server-oriented design, though it does not translate into benchmark wins here.

Memory architecture is another major differentiator. Intel supports DDR4 over a dual-channel bus with 51.2 GB/s of bandwidth. AMD supports DDR4 over an eight-channel bus with 170.6 GB/s of bandwidth, more than triple the memory bandwidth. Both support ECC memory. The EPYC 7351 also uses PCIe Gen 3, while Intel's Xeon E-2388G provides PCIe Gen 4 with 20 lanes from the CPU. Intel includes integrated UHD Graphics P750; AMD has no integrated graphics.

The EPYC 7351 has an unlocked multiplier, whereas the Xeon E-2388G is locked. Release dates differ by roughly four years: Intel launched on 2021-09-07, AMD on 2017-06-28. The Intel part carries a launch MSRP of $539; no launch MSRP is listed for the AMD chip.

The Verdict

The data supports the Intel Xeon E-2388G as the faster CPU in compute-heavy workloads. It wins every benchmark in the comparison set, with the largest margin being 1.1% in Cinebench R15 single-core. For workloads that depend on raw single-threaded performance or modest multi-threaded scaling, the Xeon's 5.10 GHz boost clock provides a clear, if small, edge.

However, the EPYC 7351 is not without merit. Its 16 cores and 32 threads, combined with eight-channel DDR4 memory and 170.6 GB/s of bandwidth, make it a fundamentally different platform. The Intel chip's dual-channel memory and 51.2 GB/s bandwidth may bottleneck memory-intensive server workloads. The AMD part also provides 64 MB of L3 cache versus 16 MB, which could benefit certain data-heavy tasks. For users needing massive core counts or extreme memory throughput, the EPYC 7351's platform features matter more than its 1% benchmark deficit.

The unlocked multiplier on the EPYC 7351 adds flexibility, though the Xeon's ability to boost to 5.10 GHz already delivers high performance out of the box. The Intel part's integrated graphics could simplify system builds where a discrete GPU is unnecessary. Both CPUs sit at the 61st percentile, so neither is a class leader. The Xeon E-2388G is the choice for single-threaded speed and lower TDP; the EPYC 7351 is the choice for core density and memory bandwidth.

Specification Differences

• Cores/Threads: Intel 8/16 vs AMD 16/32
• Base Clock: Intel 3.20 GHz vs AMD 2.40 GHz
• Boost Clock: Intel 5.10 GHz vs AMD 2.90 GHz
• TDP: Intel 95 W vs AMD 170 W
• Socket: Intel Socket 1200 vs AMD Socket SP3
• Process Node: Both 14 nm, but Intel foundry vs GlobalFoundries
• Die Size: Intel 276 mm² vs AMD 213 mm²
• Transistors: Intel not listed vs AMD 4,800 million
• L1 Cache: Intel 80 KB per core vs AMD 96 KB per core
• L3 Cache: Intel 16 MB shared vs AMD 64 MB shared
• Memory Bus: Intel dual-channel vs AMD eight-channel
• Memory Bandwidth: Intel 51.2 GB/s vs AMD 170.6 GB/s
• PCIe: Intel Gen 4, 20 lanes vs AMD Gen 3
• Integrated Graphics: Intel UHD Graphics P750 vs AMD none
• Unlocked Multiplier: Intel no vs AMD yes
• Release Date: Intel 2021-09-07 vs AMD 2017-06-28
• Launch MSRP: Intel $539 vs AMD not listed

FAQ

Q: Which processor is faster in single-core benchmarks?

A: The Intel Xeon E-2388G wins all single-core tests. In Cinebench R15, it scores 283 versus AMD's 280 (1.1% higher). In R20, Intel scores 1181 versus 1170 (0.9% higher). In R23, Intel scores 2814 versus 2787 (1% higher).

Q: Does the AMD EPYC 7351 win any benchmark?

A: No. The head-to-head data shows the AMD EPYC 7351 with zero wins across all six Cinebench tests. The Intel Xeon E-2388G wins every multi-core and single-core comparison.

Q: How do their memory systems differ?

A: The AMD EPYC 7351 supports eight-channel DDR4 with 170.6 GB/s bandwidth, while the Intel Xeon E-2388G supports dual-channel DDR4 with 51.2 GB/s. Both support ECC memory.

Q: What are the core and thread counts?

A: The Intel Xeon E-2388G has 8 cores and 16 threads. The AMD EPYC 7351 has 16 cores and 32 threads, double the core count.

Q: Do they use the same manufacturing process?

A: Both use a 14 nm process, but Intel fabricates its chip at Intel foundries, while AMD uses GlobalFoundries. Intel's die measures 276 mm²; AMD's measures 213 mm² with 4,800 million transistors.

Q: Which has a higher boost clock?

A: The Intel Xeon E-2388G boosts to 5.10 GHz, while the AMD EPYC 7351 boosts to 2.90 GHz. Intel also has a higher base clock at 3.20 GHz versus 2.40 GHz.

Where Each One Wins

The Intel Xeon E-2388G wins every benchmark included in this comparison, making it the default choice for raw compute performance. Its 5.10 GHz boost clock and 3.20 GHz base clock deliver superior single-threaded results, with a 1.1% lead in R15 single-core and 0.9% in R20. For workloads that are lightly threaded or that scale poorly beyond 8 cores, the Xeon's clock advantage will produce faster results. Its 95 W TDP also makes it easier to cool and power, and the integrated UHD Graphics P750 removes the need for a separate GPU in basic server tasks. The PCIe Gen 4 support with 20 lanes provides modern I/O connectivity.

The AMD EPYC 7351 wins in platform-level capabilities despite losing all benchmarks. Its 16 cores and 32 threads offer double the parallelism, which could benefit workloads that scale beyond what the Xeon's 8 cores can handle, even if the per-core speed is lower. The eight-channel memory bus with 170.6 GB/s of bandwidth is a decisive advantage for memory-bound applications such as large in-memory databases or virtualization hosts. The 64 MB of L3 cache, four times Intel's 16 MB, may reduce memory latency for repeated data access. The unlocked multiplier also gives owners flexibility for tuning, assuming the 170 W TDP can be managed. The EPYC 7351 is the better fit for core-heavy, memory-intensive server deployments where its benchmark deficit is offset by architectural strengths.