CPU Comparison

Head-to-Head Benchmarks

The benchmark data reveals a surprisingly narrow contest between these two Intel processors, despite their vastly different architectures and release timelines. Across all eight head-to-head tests, the Intel Core i9-7920X claims six wins, but the margins are consistently razor-thin in Cinebench workloads. In the Cinebench R23 multicore test, the i9-7920X scores 19991 against the Xeon E-2388G's 19939, a delta of just -0.3%, a statistical tie by any measure. The same pattern holds in Cinebench R15 multicore, where the i9-7920X posts 2015 versus 2009, and in Cinebench R20 multicore at 8396 versus 8374. Single-core Cinebench results are equally close: the i9-7920X leads by 0.4% in R15 (284 vs 283), 0.3% in R20 (1185 vs 1181), and 0.3% in R23 (2822 vs 2814).

The Xeon E-2388G's two wins are anything but trivial. In Geekbench multicore, it scores 9615 against the i9-7920X's 9297, a 3.4% advantage that reflects real measurable headroom. The single-core Geekbench result is the most dramatic disparity on the entire page: the Xeon E-2388G scores 2227 against 1394, a staggering 59.8% lead. That is not a marginal difference; it is a generational leap in per-thread performance. The average benchmark scores reinforce the split: the Xeon E-2388G averages 5805 across all tests, while the i9-7920X averages 5673, putting the Xeon ahead by roughly 2.3% overall.

Context from nearest rivals helps frame these numbers. The Xeon E-2388G sits at 61st percentile among all CPUs, with its average score of 5805 landing just 0.2% below the AMD EPYC 7401P (5814) and 0.6% above the Intel Xeon W-2175 (5770). The i9-7920X also holds a 61st percentile ranking, averaging 5673, which places it 0.5% behind the AMD EPYC 7F32 (5703) and 1.1% ahead of the AMD Ryzen 7 PRO 3700 (5610). Both processors occupy nearly identical positions in the overall performance hierarchy, yet they achieve that status through fundamentally different strengths.

Architecture Differences

The underlying silicon tells a story of two distinct design philosophies. The Xeon E-2388G is built on Rocket Lake-E, a 14 nm architecture from Intel, with a die size of 276 mm². It packs 8 cores and 16 threads, with a base clock of 3.20 GHz and a boost clock of 5.10 GHz. Cache allocation includes 80 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3. Memory support is dual-channel DDR4 with a bandwidth of 51.2 GB/s, and it includes ECC memory support, a critical feature for server and workstation reliability. The chip carries 20 PCIe Gen 4 lanes and integrates UHD Graphics P750, making it a self-contained package for workstation builds. Its TDP is 95 watts, and it fits the Intel Socket 1200.

The i9-7920X instead uses the Skylake-X architecture, also on a 14 nm process, but with a substantially larger die at 484 mm². It offers 12 cores and 24 threads, with a lower base clock of 2.90 GHz and a boost clock of 4.40 GHz. Cache is organized differently: 64 KB of L1 per core, a generous 1 MB of L2 per core, and 16.5 MB of shared L3. Memory support is quad-channel DDR4, delivering 85.3 GB/s of bandwidth, a 67% higher theoretical ceiling than the Xeon. The i9-7920X does not support ECC memory and lacks integrated graphics entirely. It provides 44 PCIe Gen 3 lanes, which is more than double the lane count of the Xeon, though on an older PCIe standard. The TDP is 140 watts, and it uses Intel Socket 2066.

These architectural choices explain the benchmark outcomes. The i9-7920X's advantage in core count (12 vs 8) and memory bandwidth (85.3 GB/s vs 51.2 GB/s) should theoretically dominate multicore workloads, yet the Cinebench multicore results show near-parity. The Xeon's higher boost clock (5.10 GHz vs 4.40 GHz) and newer Rocket Lake core design compensate for fewer cores, particularly in single-threaded tasks where clock speed and IPC matter most. The Geekbench single-core result, a 59.8% gap, underscores how much the Xeon's architecture advances per-thread efficiency. Meanwhile, the i9-7920X's extra cores and quad-channel memory keep it competitive in threaded Cinebench workloads despite its older Skylake design.

The Verdict

The data presents a clear but nuanced picture. For single-threaded performance, the Xeon E-2388G is the unambiguous choice. Its 59.8% lead in Geekbench single-core and consistent (if narrow) Cinebench single-core results demonstrate that Rocket Lake-E delivers superior per-core capability. For multicore workloads, the two processors are effectively interchangeable in Cinebench, the i9-7920X leads by 0.3% across all three Cinebench versions, which is within measurement noise. However, the Xeon's 3.4% win in Geekbench multicore suggests that in certain threaded workloads, the newer architecture can still outpace the older 12-core part.

The production status is a deciding factor for new system builders. The Xeon E-2388G is listed as Active, while the i9-7920X is End-of-life. The Xeon also offers ECC memory support and integrated graphics, features absent from the i9-7920X. The i9-7920X counters with quad-channel memory, 44 PCIe lanes, and an unlocked multiplier for overclocking. The launch MSRP of the Xeon E-2388G is $539; the i9-7920X launched at $1199. Neither chip currently holds a significant overall performance edge, the Xeon's average score of 5805 versus the i9-7920X's 5673 is a 2.3% difference, but the Xeon achieves that with half the TDP (95W vs 140W) and a smaller die.

For server or workstation deployments requiring reliability features and modern connectivity, the Xeon E-2388G is the data-backed recommendation. For desktop enthusiasts seeking maximum memory bandwidth and core count in a legacy platform, the i9-7920X remains competitive but is difficult to justify given its end-of-life status and the Xeon's overall benchmark superiority.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Xeon E-2388G wins decisively in Geekbench single-core, scoring 2227 against the i9-7920X's 1394, a 59.8% advantage. In Cinebench single-core tests, the i9-7920X holds a marginal 0.3-0.4% lead across R15, R20, and R23.

Q: How do the multicore scores compare?

A: The i9-7920X edges out the Xeon in all three Cinebench multicore tests by 0.3% (2015 vs 2009 in R15, 8396 vs 8374 in R20, 19991 vs 19939 in R23). The Xeon E-2388G wins Geekbench multicore by 3.4% (9615 vs 9297).

Q: Does the Xeon support ECC memory?

A: Yes, the Intel Xeon E-2388G supports ECC memory with dual-channel DDR4 and 51.2 GB/s bandwidth. The i9-7920X does not support ECC memory and offers quad-channel DDR4 with 85.3 GB/s bandwidth.

Q: What are the core and thread counts?

A: The Xeon E-2388G has 8 cores and 16 threads. The i9-7920X has 12 cores and 24 threads.

Q: Which processor has integrated graphics?

A: The Xeon E-2388G includes UHD Graphics P750. The i9-7920X has no integrated graphics.

Q: What is the production status of each chip?

A: The Xeon E-2388G is listed as Active, while the i9-7920X is End-of-life.

Where Each One Wins

The Intel Xeon E-2388G is the clear winner in:

• Geekbench single-core, with a 59.8% lead over the i9-7920X, the single largest performance gap in the entire comparison.
• Geekbench multicore, where it posts 9615 versus 9297, a 3.4% advantage.
• Overall average benchmark score, at 5805 versus the i9-7920X's 5673.
• ECC memory support, a critical reliability feature for server and workstation deployments.
• Integrated graphics presence, eliminating the need for a discrete GPU in basic display scenarios.
• Power efficiency, with a 95W TDP versus the i9-7920X's 140W.
• Production availability, as it remains Active while the i9-7920X is End-of-life.

The Intel Core i9-7920X is the clear winner in:

• Cinebench multicore across all three versions (R15, R20, R23), though by a narrow 0.3% margin each time.
• Cinebench single-core across all three versions, also by 0.3-0.4%.
• Core and thread count, offering 12 cores and 24 threads versus 8 cores and 16 threads.
• Memory bandwidth, with 85.3 GB/s over quad-channel DDR4 versus 51.2 GB/s.
• PCIe lane count, at 44 Gen 3 lanes versus 20 Gen 4 lanes.
• Overclocking flexibility, thanks to an unlocked multiplier.
• L2 cache per core, at 1 MB versus 512 KB.

The benchmark data shows that the i9-7920X's wins in Cinebench are almost entirely marginal, while the Xeon's wins in Geekbench, especially single-core, are substantial. For workloads that rely on Cinebench-style rendering, the two are functionally equivalent. For workloads that benefit from Geekbench's mixed single-thread and multi-thread patterns, the Xeon E-2388G pulls ahead. The choice ultimately depends on whether a buyer prioritizes the i9-7920X's higher core count and memory bandwidth or the Xeon's modern architecture, reliability features, and stark single-core dominance.