Intel Core i5-760 vs Intel Xeon D-1521 Comparison

# Intel Core i5-760 vs Intel Xeon D-1521: Benchmark Analysis

The Intel Core i5-760 and Intel Xeon D-1521 occupy different corners of the Intel lineup, but the recorded data shows a clear pattern: the Xeon part is consistently ahead in every benchmark category. The Core i5-760, a Lynnfield desktop part, trails the Xeon D-1521, a Broadwell-DE server chip, across all six head-to-head comparisons in the database. The average benchmark score for the Xeon is 1367, placing it at the 36th percentile among all CPUs, while the Core i5 averages 1337, sitting at the 35th percentile. The overall delta is small, roughly 2.2% in favor of the Xeon, but the consistency of that margin is what stands out.

Head-to-Head Benchmarks

The most decisive results come from the multi-core Cinebench tests. In Cinebench R15 multi-core, the Xeon D-1521 scores 476 against the Core i5-760's 466, a 2.1% advantage. The single-core R15 test shows a similar pattern: 67 for the Xeon versus 65 for the Core i5, a 3% gap. Moving to Cinebench R20, the multi-core test shows the Xeon at 1985 versus 1942 for the Core i5, a 2.2% lead. The R20 single-core result repeats the story, with the Xeon hitting 280 against 273, a 2.5% margin.

The Cinebench R23 results reinforce the trend. In the multi-core R23 test, the Xeon D-1521 records 4728, while the Core i5-760 records 4624, leaving a 2.2% advantage for the Xeon. The single-core R23 test shows 667 for the Xeon and 652 for the Core i5, a 2.2% margin. Across all six recorded comparisons, the Xeon D-1521 wins every time, with deltas ranging between 2.1% and 3%. These are not massive margins, but they are consistent, which suggests the Xeon's architectural advantages translate into a steady, if modest, performance lead.

Architecture Differences

The two chips differ in every major architectural block. The Core i5-760 is a Lynnfield part built on the Nehalem architecture, produced on a 45 nm process with 774 million transistors on a 296 mm² die. It uses the Intel Socket 1156 platform. The Xeon D-1521 uses Intel's Broadwell architecture, built on a 14 nm process with 3.2 billion transistors on a 246 mm² die, and it uses Intel BGA 1667.

Cache layouts also differ. The Core i5-760 carries 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. The Xeon D-1521 has 64 KB of L1 per core, 256 KB of L2 per core, and 1.5 MB of L3 per core. The Core i5 supports DDR3 memory over a dual-channel bus, while the Xeon supports both DDR3 and DDR4 over a dual-channel bus. The Xeon adds ECC memory support, a feature not present on the Core i5.

The Core i5 is a desktop part with a market segment of Desktop. The Xeon is designated for Server/Workstation use. The Core i5 offers PCIe Gen 2 with 16 CPU-only lanes, while the Xeon offers PCIe Gen 3 with 24 CPU-only lanes. The Core i5 does not include integrated graphics; the Xeon D-1521 does not either. The Core i5 has a base clock of 2.80 GHz, a boost of 3.33 GHz, and a TDP of 95 W. The Xeon D-1521 has a base of 2.40 GHz, a boost of 2.70 GHz, and a TDP of 45 W. The Core i5's production status is End-of-life, while the Xeon is Active. The Core i5 was released in July 2010; the Xeon arrived in October 2015.

The Verdict

The data points to one direction only. The Intel Xeon D-1521 leads the Intel Core i5-760 in all six recorded head-to-head tests, with margins of 2.1% to 3%. The largest leads are in the single-core tests, where the Xeon is consistently about 2.5% ahead. The multi-core margins are slightly smaller at 2.1 to 2.2%.

The Xeon also carries platform features the Core i5 lacks: ECC memory, DDR4 support, a newer PCIe generation, more PCIe lanes, and a smaller process node. However, the Core i5 does offer a higher base clock (2.80 GHz versus 2.40 GHz), a higher boost clock (3.33 GHz versus 2.70 GHz), and a higher TDP (95 W versus 45 W). It also has a larger L3 cache (8 MB shared versus 1.5 MB per core).

From the recorded data, the Xeon D-1521 is the pick for workloads that are heavily threaded and can use its wider PCIe and ECC memory support. The Core i5-760 remains a capable desktop chip, but in these specific comparisons, the Xeon takes the top spot. The single-core results show only a small gap, so for lightly threaded tasks the Core i5 can keep pace. The multi-core deltas, while still in the Xeon's favor, are modest. If the workload is heavily memory-bandwidth or PCIe-bound, the Xeon's platform features give it the edge. If the task is lightly threaded and latency-sensitive, the Core i5's higher clocks can offset the Xeon's architecture lead.

FAQ

Q: Which CPU is faster in multi-core Cinebench R23?

A: The Intel Xeon D-1521 is faster, scoring 4728 versus 4624 for the Intel Core i5-760, a 2.2% lead.

Q: What is the single-core performance difference?

A: The Xeon D-1521 also wins the single-core R23 test with 667 versus 652, a 2.2% advantage.

Q: Does the Core i5-760 have any architectural advantages?

A: Yes, it has a higher base clock (2.80 GHz vs 2.40 GHz), a higher boost clock (3.33 GHz vs 2.70 GHz), and a larger shared L3 cache (8 MB vs 1.5 MB per core).

Q: What memory types does the Xeon D-1521 support that the Core i5 does not?

A: The Xeon D-1521 supports both DDR3 and DDR4, plus ECC memory. The Core i5 supports DDR3 memory only.

Q: In the benchmark data, which part wins every head-to-head comparison?

A: The Intel Xeon D-1521 wins all six of the recorded head-to-head tests, with margins from 2.1% to 3%.

Q: What are the process nodes for these two parts?

A: The Core i5-760 is built on a 45 nm process with 774 million transistors, while the Xeon D-1521 uses a 14 nm process with 3.2 billion transistors.

Where Each One Wins

The Intel Core i5-760 does not win any of the six recorded head-to-head benchmarks. The Intel Xeon D-1521 takes all of them. However, the Core i5 is not without its own merits. The Core i5 has the higher clock speed: 2.80 GHz base and 3.33 GHz boost, versus 2.40 GHz and 2.70 GHz for the Xeon. The Core i5 also shows a larger L3 cache, 8 MB shared versus 1.5 MB per core on the Xeon. The Core i5 is a desktop market part, while the Xeon is aimed at server and workstation use. The Core i5 uses the Intel Socket 1156, the Xeon uses Intel BGA 1667. The Core i5 was released in July 2010, while the Xeon followed in October 2015. The Xeon supports two kinds of memory, DDR3 and DDR4, and includes ECC, while the Core i5 supports DDR3 only. PCIe connectivity also differs: the Xeon provides Gen 3, 24 lanes, while the Core i5 provides Gen 2, 16 lanes. The production status separates them clearly, with the Core i5 marked as End-of-life and the Xeon D-1521 Active. The Xeon is marked for the Server/Workstation segment, while the Core i5 is for Desktop.

In a straight benchmark comparison, the Intel Xeon D-1521 is the stronger part. Its six head-to-head wins are the deciding factor. It offers more modern connectivity, ECC memory support, and a more efficient process. The Core i5-760 is the better choice when raw clock speed is the primary concern, or when a desktop platform with the Intel Socket 1156 is required. For server or workstation duties with ECC memory and more PCIe lanes, the Xeon D-1521 is the one the data points to.