Intel Core i7-5930K vs Intel Xeon E-2226G Comparison

Head-to-Head Benchmarks

The benchmark data is unusually one-sided. Across all six recorded Cinebench tests, the Intel Xeon E-2226G takes the win every time. The margins are consistent, ranging from 6.0% to 6.2% depending on the workload. This is not a case of one chip dominating in single-threaded tasks while the other claws back ground in multi-threaded ones; the Xeon leads everywhere.

Starting with multi-core workloads, the Xeon E-2226G scores 944 in Cinebench R15 multi-core against 886 for the Core i7-5930K, a 6.1% advantage. In Cinebench R20 multi-core, the gap widens slightly to 6.2%, with the Xeon at 3934 and the i7 at 3692. Cinebench R23 multi-core shows the same story: 9368 for the Xeon versus 8791 for the i7, again a 6.2% difference. The fact that the i7-5930K has 12 threads and the Xeon has only 6 makes this result notable, but the numbers do not care about thread counts.

Single-core results follow the same pattern. In Cinebench R15 single-core, the Xeon scores 133 against 125 for the i7, a 6.0% lead. Cinebench R20 single-core shows 555 versus 521, a 6.1% gap. Cinebench R23 single-core records 1322 versus 1241, also a 6.1% difference. The Xeon’s higher boost clock is the obvious driver here, but the data simply shows a consistent advantage in every single-core test.

The i7-5930K does have one benchmark category not present for the Xeon: Geekbench. It scores 5715 multi-core and 1225 single-core. These results are not directly comparable to the Xeon, which lacks Geekbench entries in the database. But they place the i7 at a 51st percentile among all CPUs, while the Xeon sits at the 50th percentile. The average benchmark score for the i7 is 2775, slightly above the Xeon’s 2709. This is a small overall difference, but it is driven entirely by the Geekbench results, which are not part of the head-to-head comparison.

When looking at nearest rivals, the i7-5930K sits close to the AMD Ryzen 3 PRO 4350G, which has an average score of 2774 with a 0% delta. The Intel Xeon D-1567 is at 2770 with a 0.2% delta, and the AMD Ryzen 3 PRO 4350GE is at 2767 with a 0.3% delta. The Xeon E-2226G, meanwhile, is bracketed by the AMD Ryzen 5 PRO 5650U at 2713 with a -0.2% delta and the Intel Xeon D-1577 at 2715 with a -0.2% delta. Both CPUs are firmly in the mid-range of the database’s CPU rankings.

The takeaway from the head-to-head numbers is that the Xeon E-2226G is faster in every comparable test, but the margins are narrow. A 6% advantage is meaningful for a workstation upgrade, but it is not transformative. The i7-5930K’s higher thread count does not translate into a win in any Cinebench test, which suggests the Xeon’s architectural advantages, including a much newer design, outweigh the raw thread count difference.

The Verdict

The data points to one clear choice for most workloads: the Intel Xeon E-2226G. It wins all six head-to-head Cinebench tests, with leads between 6.0% and 6.2% in both single-core and multi-core scenarios. If the primary use case is rendering, video encoding, or any heavily threaded application, the Xeon still comes out ahead despite having half the threads. That is a strong signal that the newer Coffee Lake architecture is doing more work per clock than the older Haswell design.

The i7-5930K does have a higher average benchmark score of 2775 versus 2709 for the Xeon, but that is because of Geekbench results that are not part of the direct comparison. In the tests where both CPUs were measured, the Xeon wins every time. The i7’s 12 threads and quad-channel memory support are real features, but they do not show up as performance wins in the recorded benchmarks.

For a builder choosing between these two today, the Xeon E-2226G is the safer pick for raw compute performance. It also brings ECC memory support, integrated graphics, and a much lower TDP of 80 watts versus 140 watts for the i7. The i7-5930K is not without merit: it has 40 PCIe lanes, quad-channel memory, and an unlocked multiplier. But the benchmark data shows the Xeon is faster in every direct comparison, and that is what matters for most workloads.

The one scenario where the i7 makes sense is if the user needs quad-channel memory bandwidth or more PCIe lanes for expansion. Those features are not captured in the Cinebench scores, but they are critical for certain workstation tasks like large data sets or multiple GPUs. Otherwise, the Xeon is the better performer in both single-core and multi-core tasks, and it does so with lower power consumption.

FAQ

Q: Which CPU wins in multi-core performance?

A: The Intel Xeon E-2226G wins all three multi-core Cinebench tests. It scores 944 in R15, 3934 in R20, and 9368 in R23, compared to 886, 3692, and 8791 for the Core i7-5930K. The margins are 6.1%, 6.2%, and 6.2% respectively.

Q: How do the single-core scores compare?

A: The Xeon E-2226G leads in single-core as well. It scores 133 in Cinebench R15, 555 in R20, and 1322 in R23. The i7-5930K scores 125, 521, and 1241. The deltas are 6.0%, 6.1%, and 6.1%.

Q: Does the i7-5930K have any benchmark wins?

A: In the head-to-head benchmark set, the i7-5930K has zero wins. The Xeon E-2226G wins all six tests. The i7 does have Geekbench scores of 5715 multi-core and 1225 single-core, but the Xeon was not tested in Geekbench.

Q: What is the average benchmark score for each CPU?

A: The Core i7-5930K has an average benchmark score of 2775, placing it at the 51st percentile. The Xeon E-2226G has an average score of 2709, placing it at the 50th percentile. The i7 sits slightly higher overall, but this is due to Geekbench results not present for the Xeon.

Q: Which CPU has more threads?

A: The Core i7-5930K has 12 threads (6 cores with Hyper-Threading). The Xeon E-2226G has 6 threads (6 cores without Hyper-Threading). Despite having half the threads, the Xeon wins all multi-core Cinebench tests.

Q: Does either CPU support ECC memory?

A: The Xeon E-2226G supports ECC memory. The Core i7-5930K does not support ECC memory. This is a significant difference for workstation or server builds where data integrity is important.

Specification Differences

The two CPUs differ in several key specifications beyond their benchmark scores. The Core i7-5930K has 6 cores and 12 threads, while the Xeon E-2226G has 6 cores and 6 threads. The i7’s base clock is 3.50 GHz with a boost of 3.70 GHz. The Xeon has a lower base clock of 3.40 GHz but a much higher boost clock of 4.70 GHz.

Memory support differs significantly. The i7 uses quad-channel DDR4 with a memory bandwidth of 68.3 GB/s. The Xeon uses dual-channel DDR4 with a memory bandwidth of 42.7 GB/s. The i7 also does not support ECC memory, while the Xeon does.

PCIe lane counts are also different. The i7-5930K provides 40 PCIe lanes (Gen 3), while the Xeon E-2226G provides 16 PCIe lanes (Gen 3). The i7 also has an unlocked multiplier, whereas the Xeon’s multiplier is locked. The Xeon includes integrated graphics (HD Graphics P630), while the i7 has no integrated graphics.

The Xeon has a TDP of 80 watts, while the i7 has a TDP of 140 watts. The i7 uses the Intel Socket 2011-3, while the Xeon uses the Intel Socket 1151. The i7 was released in 2014, while the Xeon was released in 2019. The Xeon had a launch MSRP of $255; the i7 has no recorded launch MSRP in the database.

Architecture Differences

The Core i7-5930K is built on Intel’s Haswell architecture, specifically the Haswell-E variant, using a 22 nm process node. It has 2,600 million transistors on a die size of 356 mm². The Xeon E-2226G uses the Coffee Lake architecture, specifically Coffee Lake-S WS, on a 14 nm process node. Its die size is 154 mm², and no transistor count is recorded in the database.

Cache layouts are similar in structure but differ in total size. Both have 64 KB of L1 cache per core and 256 KB of L2 cache per core. The i7 has 15 MB of shared L3 cache, while the Xeon has 12 MB of shared L3 cache. The i7’s larger L3 cache is a point in its favor, but the benchmark data shows the Xeon’s newer architecture overcomes that disadvantage.

The i7 is from the Core i7 (Haswell-E) generation, while the Xeon is from the Xeon E (Coffee Lake) generation. The Xeon is part of the Xeon E-2200 series. The i7’s production status is end-of-life, as is the Xeon’s. The i7’s part number is SR20R, and the Xeon’s is SRF7F.

The foundry for both is Intel, but the process node difference is substantial: 22 nm for the i7 versus 14 nm for the Xeon. This newer process allows the Xeon to achieve a much higher boost clock of 4.70 GHz while maintaining a lower TDP of 80 watts. The i7’s 3.70 GHz boost clock is noticeably lower, and its 140 watt TDP is significantly higher.

The Xeon also includes integrated HD Graphics P630, which the i7 lacks entirely. This makes the Xeon a more complete package for systems that do not use a discrete GPU. The i7’s quad-channel memory controller and 40 PCIe lanes are architectural advantages, but they come at the cost of higher power draw and a larger die.

Where Each One Wins

The Xeon E-2226G wins in every recorded head-to-head benchmark. For single-threaded tasks like light productivity, web browsing, or older software that relies on one core, the Xeon’s 6.0% to 6.1% lead in single-core Cinebench tests is the deciding factor. Its boost clock of 4.70 GHz is significantly higher than the i7’s 3.70 GHz, and the data shows that translates directly into higher scores.

For multi-threaded workloads like video rendering, 3D modeling, or batch photo processing, the Xeon also wins, but the margin is similar at 6.1% to 6.2%. This is surprising given the i7’s 12 threads versus the Xeon’s 6 threads. The Xeon’s newer architecture and higher per-core efficiency overcome the thread count disadvantage. If the workload is heavily threaded and scales well, the Xeon still comes out ahead, but the gap is narrow enough that the i7’s 12 threads might close the gap in some real-world applications not covered by Cinebench.

The i7-5930K has its own territory where it wins by specification, if not by benchmark. It supports quad-channel memory with 68.3 GB/s bandwidth, which is substantially higher than the Xeon’s 42.7 GB/s. For memory-intensive workloads like large in-memory databases or complex simulations, this could be a decisive factor. It also has 40 PCIe lanes versus 16, making it the better choice for systems with multiple GPUs or high-speed NVMe arrays. The unlocked multiplier also allows overclocking, which could recover some of the performance gap, though the recorded benchmarks do not reflect overclocked results.

The Xeon wins on power efficiency, with an 80 watt TDP versus 140 watts for the i7. It also supports ECC memory, which is critical for servers or workstations where data corruption is unacceptable. The Xeon’s integrated graphics provide a fallback display output without a discrete GPU.

For a builder prioritizing raw compute performance in standard benchmarks, the Xeon E-2226G is the clear winner. For a builder prioritizing memory bandwidth, PCIe expansion, or overclocking, the i7-5930K offers features the Xeon cannot match. The choice depends entirely on whether the workload benefits more from the Xeon’s higher clock speeds and newer architecture or the i7’s wider memory bus and expansion capabilities.