CPU Comparison
Intel Core i5-2380P
Xeon W3580
PERFORMANCE BENCHMARKS
Analysis: Intel Core i5-2380P vs Intel Xeon W3580
The Intel Xeon W3580 and Intel Core i5-2380P are separated by almost three years of platform evolution, yet their benchmark scores converge to a remarkable degree. Both processors occupy the 29th percentile among all CPUs, with average benchmark scores of 1064 and 1063 respectively. This near-identical performance profile makes the choice between them a study in architectural trade-offs rather than raw capability.
Head-to-Head Benchmarks
The head-to-head results show an extraordinarily tight contest. In Cinebench R15 multi-core, both processors score exactly 311 points. The Xeon W3580 is credited with the win, but the delta is 0%, a statistical dead heat. Moving to Cinebench R20 multi-core, the Xeon edges ahead with 1298 points against the i5-2380P's 1297, a 0.1% margin that falls within any reasonable measurement noise.
Single-core performance is equally matched. In Cinebench R20 single-core, both chips record 183 points. The R23 single-core test yields identical scores of 436 for each. The Xeon W3580's 3.60 GHz boost clock versus the i5-2380P's 3.40 GHz boost does not translate into a measurable single-thread advantage in these workloads. The newer Sandy Bridge architecture's improved instruction handling effectively cancels the older chip's clock frequency lead.
The largest delta in the entire comparison is a 0.1% difference in Cinebench R23 multi-core, where the Xeon scores 3092 against the i5's 3090. Across all five benchmarks, the Xeon W3580 claims victory each time, but the data tells a story of functional equivalence. The i5-2380P's four physical cores without Hyper-Threading match the Xeon's four cores with eight threads in these heavily multi-threaded workloads, suggesting that the Cinebench engine does not fully utilize the Xeon's extra thread count.
Where Each One Wins
The Xeon W3580's wins, while narrow, are consistent. Its 0.1% advantage in Cinebench R20 and R23 multi-core tests points to the benefit of its 8 MB shared L3 cache and eight threads in workloads that can exploit them. The server-grade part also supports ECC memory, which is a definitive advantage for workstation reliability in error-sensitive computing environments. Its triple-channel memory bus provides more theoretical bandwidth than the i5's dual-channel configuration, despite similar DDR3 support.
The i5-2380P, despite losing every head-to-head benchmark, wins in platform efficiency. Its 95 W TDP is substantially lower than the Xeon's 130 W TDP, making it the more thermally manageable option for desktop chassis. The Sandy Bridge architecture's 32 nm process node represents a generation ahead of the Xeon's 45 nm Nehalem design, delivering comparable performance with fewer watts. The i5 also supports PCIe Gen 3 with 16 CPU lanes, whereas the Xeon is limited to PCIe Gen 2, a practical advantage for modern discrete graphics cards.
For a desktop user, the i5-2380P's advantages are tangible: lower power draw, newer platform features, and no need for workstation-grade cooling. For a server or workstation operator, the Xeon's ECC memory support and triple-channel bandwidth are non-negotiable features that outweigh its performance parity.
FAQ
Q: Which processor is faster in single-core tasks?
A: The two CPUs are identical in single-core performance. Both score 183 points in Cinebench R20 single-core and 436 points in Cinebench R23 single-core, with a 0% delta in both tests.
Q: Does the Xeon W3580's Hyper-Threading provide a meaningful advantage?
A: In these Cinebench benchmarks, the advantage is negligible. The Xeon's 8 threads versus the i5's 4 threads yields at most a 0.1% multi-core score difference, indicating that the workload does not scale significantly with additional threads.
Q: What is the biggest performance gap between the two?
A: The largest difference is 0.1% in Cinebench R20 multi-core (1298 vs 1297) and Cinebench R23 multi-core (3092 vs 3090). There is no benchmark where either processor leads by more than a fraction of a percent.
Q: Can the i5-2380P use ECC memory?
A: No. ECC memory support is exclusive to the Xeon W3580. The i5-2380P does not support ECC memory, which limits its suitability for error-sensitive workstation or server workloads.
Q: Which processor has a higher boost clock?
A: The Xeon W3580 has a higher boost clock of 3.60 GHz compared to the i5-2380P's 3.40 GHz. The Xeon also has a higher base clock at 3.33 GHz versus 3.10 GHz.
Q: How do these processors compare to other CPUs in the database?
A: Both sit at the 29th percentile among all CPUs. The Xeon W3580 averages 1064 points, while the i5-2380P averages 1063. Their nearest rivals include the Intel Core i3-9100HL (1065 points, 0.1% ahead of the Xeon) and the AMD Opteron 4376 HE (1061 points, 0.3% behind).
Specification Differences
The two processors differ across nearly every physical and platform specification. The Xeon W3580 uses the Intel Socket 1366, while the i5-2380P uses Intel Socket 1155, these are not interchangeable platforms. Core counts are equal at 4, but the Xeon doubles the thread count to 8 via Hyper-Threading, whereas the i5 is limited to 4 threads. The Xeon's base clock is 3.33 GHz with a 3.60 GHz boost, compared to the i5's 3.10 GHz base and 3.40 GHz boost.
Memory support differs significantly: the Xeon features triple-channel DDR3 with ECC capability, while the i5 uses dual-channel DDR3 without ECC. The PCIe interface also diverges, with the Xeon on Gen 2 and the i5 on Gen 3 with 16 CPU lanes. Thermal design power favors the i5 at 95 W versus the Xeon's 130 W. The Xeon is marked as end-of-life production, while the i5's production status is not specified.
The process node tells a generational story: the Xeon is built on 45 nm with 731 million transistors on a 263 mm² die, while the i5 is fabricated on 32 nm with 1,160 million transistors on a 216 mm² die. The smaller, denser process gives the i5 a transistor count advantage despite its smaller physical size.
Architecture Differences
The Xeon W3580 is based on the Nehalem architecture with the Bloomfield codename, released in August 2009. The i5-2380P uses the Sandy Bridge architecture with the same Sandy Bridge codename, released in January 2012. This places the i5 a full generation ahead in microarchitectural design.
Cache configurations differ notably. Both share the same L1 (64 KB per core) and L2 (256 KB per core) allocations, but the L3 cache differs: the Xeon has 8 MB shared, while the i5 has 6 MB shared. The Xeon's larger L3 cache is a direct result of its server-oriented design, where additional cache helps with multi-threaded server workloads. The i5's smaller cache reflects its desktop focus and the Sandy Bridge architecture's more efficient cache utilization.
The manufacturing process differences are substantial. The Xeon's 45 nm node with 731 million transistors and 263 mm² die size represents Intel's mature Nehalem-era process. The i5's 32 nm node packs 1,160 million transistors into a smaller 216 mm² die, demonstrating the density improvements of the Sandy Bridge generation. This architectural leap explains how the i5 achieves near-identical performance with a 35 W TDP reduction and a lower clock frequency.
Market segmentation further separates these parts. The Xeon W3580 is a Server/Workstation processor with ECC support and a triple-channel memory bus, designed for reliability and memory bandwidth. The i5-2380P is a Desktop processor with PCIe Gen 3 support and dual-channel memory, optimized for consumer workloads. The Xeon's part number is SLBET, while the i5's is SR0G2. Neither processor has an unlocked multiplier, and neither includes integrated graphics.