Intel Core i7-980X vs Intel Xeon E5-2637 v3 Comparison

Head-to-Head Benchmarks

The recorded data shows a consistent pattern across every Cinebench iteration: the Intel Xeon E5-2637 v3 wins all six head-to-head comparisons, with no benchmark going to the Core i7-980X. The closest margin appears in Cinebench R15 multi-core, where the Xeon scores 617 against the i7-980X’s 584, a 5.7% advantage. Single-core in the same test shows 87 versus 82, a 6.1% gap. These are not overwhelming margins, but they are uniform. The Xeon is ahead in every recorded test, and no test in the database flips the result.

Moving to Cinebench R20, the multi-core score for the Xeon is 2574, while the i7-980X records 2434, a 5.8% lead. Single-core R20 repeats the same percentage: 363 versus 343, again 5.8%. The consistency of the delta across R20 is notable, as the two sub-tests sample different workloads, yet the relative gap remains nearly identical. In Cinebench R23, the Xeon scores 6130 multi-core and 865 single-core, while the i7-980X scores 5797 and 818 respectively, with both deltas at 5.7%. The pattern suggests the Xeon’s advantage is not workload-specific but rather a general throughput and latency edge across the Cinebench suite.

The average benchmark score tells a similar story. The Xeon E5-2637 v3 has an average of 1773, while the Core i7-980X averages 1746. That 27-point gap places the Xeon slightly ahead in the database’s aggregate metric. However, both parts land at the 41st percentile among all CPUs, meaning they occupy the same overall tier in the broader performance distribution. The nearest rivals for the Xeon include the Intel Xeon E5-4610 v3 at 1777 (a 0.2% delta), the Intel Core i7-4870HQ at 1769 (0.2%), the AMD Ryzen 3 PRO 1300 at 1778 (0.3%), and the AMD Ryzen 5 2400GE at 1766 (0.4%). For the i7-980X, the nearest rivals are the Intel Core i5-8269U at 1748 (0.1%), the Intel Core i5-6600 at 1744 (0.1%), the AMD Ryzen 3 PRO 3200GE at 1750 (0.2%), and the AMD Ryzen 3 4300U at 1742 (0.2%). Both CPUs sit in a dense cluster of processors separated by fractions of a percent, which contextualizes the head-to-head deltas: the Xeon’s 5.7% to 6.1% leads are small but larger than the differences between adjacent rivals in either part’s neighborhood.

The biggest single win for the Xeon is in Cinebench R15 single-core, where the 6.1% delta exceeds the multi-core margins. That is a meaningful signal because single-core performance often drives responsiveness in lightly threaded tasks, and it shows the Xeon’s architectural edge is not masked by core count. The i7-980X does have two more physical cores and four more threads, 6 cores and 12 threads versus 4 cores and 8 threads, but the Xeon still leads multi-core scores across all three Cinebench versions. The data indicates that the Xeon’s per-thread efficiency overcomes the i7-980X’s thread-count advantage in these heavily threaded rendering workloads.

The Verdict

From the recorded data, the Intel Xeon E5-2637 v3 is the stronger processor in every benchmark category measured. It wins all six head-to-head tests, holds a higher average benchmark score, and posts consistent single-core and multi-core leads. The deltas range from 5.7% to 6.1%, which is not a generational leap, but it is a clear and repeatable advantage. A user selecting between these two parts strictly on benchmark results should choose the Xeon unless other factors, such as platform compatibility or feature requirements, override the performance data.

The Core i7-980X is not without merit. Its 6 core and 12 thread configuration gives it a structural advantage in raw parallel resources, and its unlocked multiplier allows overclocking flexibility that the Xeon lacks. The Xeon multiplier is locked, so users who rely on frequency tuning as part of their workflow would need to accept the fixed 3.50 GHz base and 3.70 GHz boost clocks. The i7-980X runs a 3.30 GHz base and 3.70 GHz boost, slightly lower base but identical boost, and the unlocked design opens the door to manual frequency increases, though the benchmark data does not include overclocked results.

The percentile placement reinforces the verdict. Both processors sit at the 41st percentile, so in the database’s overall ranking, they are effectively peers. The Xeon’s win is visible in the head-to-head deltas and the average score (1773 versus 1746), but it does not boost the Xeon into a higher performance tier. The choice between them is therefore not about class superiority but about the specific benchmark results, which favor the Xeon across every recorded test.

Where Each One Wins

The Intel Xeon E5-2637 v3 wins every benchmark in the head-to-head comparison, so the use-case split follows the data. For multi-threaded rendering workloads, Cinebench R15, R20, and R23 multi-core all go to the Xeon. The largest multi-core margin is 5.8% in R20, where the Xeon scores 2574 against 2434. In R15 multi-core, the Xeon leads by 5.7% with a score of 617 versus 584, and in R23 multi-core, the lead is 5.7% with 6130 versus 5797. Users running continuous render jobs in these applications would see faster completion times with the Xeon, all else held equal.

For single-threaded tasks, the Xeon also wins all three Cinebench single-core tests. The largest overall delta, 6.1%, comes in R15 single-core, where the Xeon records 87 against 82. R20 single-core shows 363 versus 343, a 5.8% lead, and R20 and R23 single-core show 865 versus 818, a 5.7% lead, with R23 single-core at 5.7%. The consistency of single-core performance means the Xeon is the safer choice for mixed workloads that alternate between lightly and heavily threaded processes.

The Core i7-980X has no recorded benchmark wins, so its strengths lie outside the Cinebench results. The database shows it supports DDR3 memory across a triple-channel bus, while the Xeon uses DDR4 memory on a quad-channel bus. That memory bandwidth figure for the i7-980X is not recorded in the database, so no bandwidth comparison is possible. The i7-980X lacks ECC memory support, while the Xeon has ECC support built in. For users building in legacy Socket 1366 systems, the i7-980X fits that platform and brings six physical cores, which could matter for workloads that specifically scale with core count beyond what the benchmark suite tests. The Xeon targets the Intel Socket 2011-3 platform, so it is not a drop-in alternative for Socket 1366 motherboards.

The Xeon’s PCIe Gen 3 with 40 lanes (CPU only, per the database) contrasts with the i7-980X’s PCIe Gen 2, and the Xeon’s 40 lanes provide more expansion capacity for expansion cards and high-speed devices. The i7-980X does not have its PCIe lane count recorded in the pack, so no lane comparison is possible beyond noting both support expansion. For server workstations, the Xeon’s ECC memory and quad-channel DDR4 configuration align with reliability and memory bandwidth needs, though the benchmark data does not directly measure memory performance.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon E5-2637 v3 has an average benchmark score of 1773, while the Intel Core i7-980X has an average of 1746.

Q: What is the largest performance gap between the two in any single benchmark?

A: The largest delta is in Cinebench R15 single-core, where the Xeon scores 87 against 82, a 6.1% lead.

Q: Does the Core i7-980X win any benchmark in the head-to-head comparison?

A: No, the i7-980X has zero wins across the six recorded head-to-head tests.

Q: How many cores and threads does each processor have?

A: The Xeon E5-2637 v3 has 4 cores and 8 threads, while the Core i7-980X has 6 cores and 12 threads.

Q: Are the two processors in the same overall performance percentile?

A: Yes, both are at the 41st percentile among all CPUs.

Q: What is the memory configuration difference?

A: The Xeon supports DDR4 on a quad-channel bus with ECC memory, while the i7-980X supports DDR3 on a triple-channel bus without ECC memory.

Architecture Differences

The two processors come from different Intel architectures and process nodes. The Xeon E5-2637 v3 is built on the Haswell architecture (Haswell-EP codename, 22 nm process) with a die size of 356 mm² and 2,600 million transistors. The Core i7-980X uses the Westmere architecture (Gulftown codename, 32 nm process) with a die size of 239 mm² and 1,170 million transistors. The Xeon is produced on a smaller lithography node and packs more than twice the transistor count into a larger die, reflecting a generation gap in design density.

The core configurations differ significantly. The Xeon has 4 cores and 8 threads, while the i7-980X has 6 cores and 12 threads. Despite having two fewer cores and four fewer threads, the Xeon posts higher multi-core scores in every Cinebench test, which indicates that per-core efficiency from the newer architecture outweighs the i7-980X’s raw core count. The clock speeds are close, with the Xeon’s base clock at 3.50 GHz and boost at 3.70 GHz, versus the i7-980X base at 3.30 GHz and boost at 3.60 GHz, so frequency differences alone do not explain the Xeon’s lead.

Cache hierarchies are similar in structure but differ in capacity. The Xeon has 64 KB of L1 cache per core and 256 KB per core, same L2 at 64 KB per core and 256 KB per core for the i7-980X, with the shared L3 cache at 15 MB for Xeon versus 12 MB for the i7-980X. The Xeon also has a larger shared L3 cache of 15 MB, while the i7-980X has 12 MB of shared L3 cache. The extra 3 MB of shared L3 cache in the Xeon provides more capacity for frequently accessed data, which could contribute to the benchmark margins.

Memory support and platform features diverge substantially between the two, though the benchmarks do not directly test memory throughput. The Xeon supports DDR4 memory across a quad-channel bus with a recorded memory bandwidth of 68.3 GB/s, while the i7-980X supports DDR3 on a triple-channel bus with no recorded bandwidth figure. ECC memory is supported on the Xeon, the Xeon supports ECC memory, and the i7-980X does not. The Xeon uses Socket 2011-2011-3 with PCIe Gen 3 and 40 lanes (CPU only, per the database), while the i7-980X uses Socket 1366 with PCIe Gen 2 and no recorded lane count, so no PCIe lane count comparison is possible beyond noting both support expansion. The i7-980X also has an unlocked multiplier, while the Xeon multiplier is locked. The Xeon’s launch MSRP was $996, and the i7-980X has no recorded launch MSRP in the database. The Xeon is a server and workstation part, while the i7-980X is a desktop part, with both marked as end-of-life production status. Release dates differ by several years, with the Xeon released later than the i7-980X, though the exact date gap is recorded as 2014-09-07 for the Xeon and 2010-03-15 for the i7-980X. The i7-980X is part of the Core i7 Extreme generation, while the Xeon is part of the Xeon E5 generation.