Intel Core i7-6800K vs Intel Xeon E-2414 Comparison

Head-to-Head Benchmarks

The recorded data shows a clean sweep for the Intel Xeon E-2414 across all six head-to-head Cinebench comparisons. The Xeon wins every multi-core and single-core test, with margins consistently hovering around 10%. In Cinebench R15 multicore, the Xeon scores 1012 against the Core i7-6800K's 916, a 10.5% advantage. The single-core R15 result is similarly decisive: 142 versus 129, a 10.1% edge.

Moving to Cinebench R20, the pattern holds. The Xeon E-2414 posts 4219 in multicore versus 3819 for the i7-6800K, another 10.5% delta. Single-core R20 sees 595 against 538, the largest margin in the set at 10.6%. In R23 multicore, the Xeon reaches 10046 while the i7-6800K manages 9093, again 10.5% ahead. The R23 single-core score is 1418 against 1283, a 10.5% lead.

These deltas are remarkably consistent. The Xeon's advantage is neither a single-core specialization nor a multicore anomaly; it is a uniform performance lead across every rendering workload in the database. The i7-6800K does have two additional Geekbench results in its record, scoring 5688 multicore and 1237 single-core, but the database does not list a matching Geekbench run for the Xeon, so a direct comparison on that test is not possible from the recorded data.

The average benchmark score for the Xeon is 2905, while the i7-6800K sits at 2838. Both CPUs land at the 51st percentile among all processors in the database, meaning they occupy the same overall performance tier despite the Xeon's consistent head-to-head victories. The Xeon's nearest rivals include the Intel Core i5-1335UE (average 2907, essentially tied at -0.1%) and the AMD Ryzen 5 PRO 1600 (2909, -0.1%). The i7-6800K's closest competitor is the Intel Core i5-10600 (average 2837, delta 0%), which effectively matches it.

Architecture Differences

The two processors come from different architectural eras. The Xeon E-2414 uses Raptor Lake, specifically the Raptor Lake-S die, built on Intel's 10 nm process. It is part of the Xeon E-2400 series and belongs to the Xeon E (Raptor Lake) generation. The die size is 163 mm². The i7-6800K uses Broadwell, specifically Broadwell-E, on a 14 nm process with the Core i7 (Broadwell-E) generation. Its die is larger at 246 mm² and contains 3,400 million transistors.

Core and thread counts differ substantially. The Xeon has 4 cores and 4 threads, while the i7-6800K has 6 cores and 12 threads. The i7-6800K has more physical cores and much more thread capacity, which would normally favor multithreaded workloads. Despite that, the Xeon still wins every multicore benchmark in the comparison, which shows that per-core efficiency and clock speed can overcome a raw core deficit.

Cache hierarchies are also distinct. The Xeon allocates 80 KB of L1 per core, 1.25 MB of L2 per core, and 12 MB of shared L3. The i7-6800K provides 64 KB of L1 per core, 256 KB of L2 per core, and 15 MB of shared L3. The Xeon has a much larger L2 per core, while the i7-6800K has a larger shared L3 pool.

Clock speeds favor the Xeon significantly. The Xeon has a base clock of 2.60 GHz and a boost clock of 4.50 GHz. The i7-6800K has a higher base clock at 3.40 GHz but a much lower boost clock at 3.60 GHz. The Xeon's 0.90 GHz boost advantage explains much of its single-core performance lead.

Memory support diverges by platform generation. The Xeon uses DDR5 memory on a dual-channel bus, with a bandwidth rating of 76.8 GB/s and ECC support enabled. The i7-6800K uses DDR4 on a quad-channel bus, also rated at 76.8 GB/s, but without ECC support. Both are rated for the same peak bandwidth, though the memory technology and channel configurations are entirely different.

PCIe support is more modern on the Xeon: Gen 5 with 16 lanes (CPU only). The i7-6800K provides Gen 3 with 28 lanes (CPU only). The Xeon offers faster per-lane bandwidth but fewer lanes.

The Verdict

The data supports picking the Intel Xeon E-2414 for any workload that relies on Cinebench-style rendering or heavily threaded compute. The Xeon wins all six head-to-head tests, with every victory in the 10.1% to 10.6% range. The consistency matters: it is not a fluke on one test but a steady advantage across R15, R20, and R23, both single-core and multicore.

The i7-6800K does have a thread count advantage, 12 threads versus 4, and a larger shared L3 cache, but the benchmark results show that the Xeon's architecture and higher boost clock overcome that deficit. The i7-6800K is end-of-life and from the Broadwell generation, while the Xeon is active and newer. If the workload is fixed to the recorded benchmarks, the Xeon is the clear winner.

For buyers who require ECC memory support, the Xeon is the only option, as the i7-6800K does not support ECC. For buyers who need a quad-channel memory bus or a larger shared L3 cache, the i7-6800K offers those, but the performance data does not show an advantage from them in the tested workloads.

The Xeon's launch MSRP is $225. The i7-6800K's launch MSRP is $434.

FAQ

Q: Which processor wins every head-to-head benchmark in the database?

A: The Intel Xeon E-2414 wins all six recorded Cinebench tests, with margins from 10.1% to 10.6%.

Q: How large is the Xeon E-2414's advantage in multicore performance?

A: In R20 multicore, the Xeon scores 4219 against the i7-6800K's 3819, a 10.5% lead. In R23 multicore, the Xeon scores 10046 against 9093, also 10.5% ahead.

Q: Does the i7-6800K's 6-core, 12-thread configuration beat the Xeon's 4-core, 4-thread setup in any test?

A: No. Despite having more cores and threads, the i7-6800K loses every multicore test in the head-to-head data.

Q: What is the average benchmark score difference between the two CPUs?

A: The Xeon's average benchmark score is 2905, while the i7-6800K's is 2838. The Xeon leads by 67 points.

Q: Which CPU supports ECC memory?

A: The Intel Xeon E-2414 supports ECC memory. The Intel Core i7-6800K does not.

Q: How do the boost clocks compare?

A: The Xeon has a 4.50 GHz boost clock, while the i7-6800K has a 3.60 GHz boost clock. The Xeon is 0.90 GHz higher.

Where Each One Wins

From the recorded data, the Intel Xeon E-2414 wins every category where both have comparable results. In single-core performance, the Xeon leads by about 10% in R15, R20, and R23. In multicore performance, the Xeon leads by about 10% as well, despite the i7-6800K having 6 cores and 12 threads versus 4 cores and 4 threads.

The i7-6800K has no benchmark wins in the head-to-head table. Its only advantages are in specifications, not measured performance. It offers a higher base clock (3.40 GHz versus 2.60 GHz), more PCIe lanes (28 versus 16), quad-channel memory bus (versus dual-channel), and a larger shared L3 cache (15 MB vs 12 MB). These are architectural differences, but they do not translate into any recorded performance victory.

The Xeon's wins are more meaningful in single-core workloads, where its 4.50 GHz boost clock provides a clear edge. It also wins in multicore, which is notable because the i7-6800K's additional threads should theoretically help. The Xeon's modern architecture and higher memory bandwidth (DDR5) likely compensate.

For use cases such as ECC-memory-requiring server or workstation tasks, the Xeon is the only candidate. For use cases that demand a quad-channel memory bus or a higher PCIe lane count, the i7-6800K has the specification advantage, but the database shows no benchmark result to support a performance win.

Specification Differences

The two processors differ in every major specification category except for memory bandwidth, both rated at 76.8 GB/s. The Intel Xeon E-2414 uses 4 cores and 4 threads, while the i7-6800K uses 6 cores and 12 threads. Base clocks are 2.60 GHz for the Xeon and 3.40 GHz for the i7-6800K; boost clocks are 4.50 GHz and 3.60 GHz respectively.

Thermal design power differs widely: the Xeon is rated at 55 W, while the i7-6800K is rated at 140 W. The Xeon is a 10 nm part, the i7-6800K a 14 nm part. The Xeon uses a 163 mm² die; the i7-6800K's die is 246 mm². Transistor count is 3,400 million for the i7-6800K, while the Xeon's count is not recorded.

Socket types are incompatible: the Xeon uses Intel Socket 1700, the i7-6800K uses Intel Socket 2011-3. Memory support: DDR5 for the Xeon, DDR4 for the i7-6800K. The Xeon has dual-channel memory, the i7-6800K has quad-channel memory. ECC support: yes for the Xeon, no for the i7-6800K.

PCIe generation and lanes: the Xeon offers Gen 5 with 16 lanes, the i7-6800K offers Gen 3 with 28 lanes. Cache per core: the Xeon has 80 KB L1 and 1.25 MB L2, while the i7-6800K has 64 KB L1 and 256 KB L2. Shared L3: 12 MB for the Xeon, 15 MB for the i7-6800K.

The Xeon is an active product from the Xeon E-2400 series, released in December 2023. The i7-6800K is end-of-life from the Broadwell generation, released in May 2016. The Xeon has a locked multiplier, while the i7-6800K has an unlocked multiplier. The Xeon's part number is SRMXD; the i7-6800K's is SR2PD. Neither has integrated graphics. The Xeon's launch MSRP is $225; the i7-6800K's launch MSRP is $434.