Intel Xeon D-1567 vs Intel Xeon E5-4627 v3 Comparison

# Head-to-Head Benchmarks

The benchmark data shows a remarkably consistent picture across the entire Cinebench suite: the Intel Xeon E5-4627 v3 wins every single head-to-head comparison, though by margins so narrow they fall within typical run-to-run variance. In Cinebench R15 multi-core, the E5-4627 v3 scores 971 against the Xeon D-1567's 965, a delta of just 0.6%. The single-core result in the same test is similarly tight: 137 versus 136, a 0.7% advantage for the E5-4627 v3.

Moving to Cinebench R20, the pattern holds. The E5-4627 v3 posts 4049 multi-core points versus 4022 for the D-1567, again a 0.7% gap. Single-core R20 shows 571 against 567, matching that same 0.7% delta. The Cinebench R23 results continue the trend with the E5-4627 v3 scoring 9642 multi-core and 1361 single-core, while the D-1567 manages 9578 and 1352 respectively. Every one of these six comparisons produces the same winner, and five of the six deltas sit at exactly 0.7%.

What is notable here is not the magnitude of any individual victory but the consistency across all six tests. The largest margin is 0.7%, the smallest is 0.6%, and no test shows either processor reversing the order. This suggests the two CPUs are nearly identical in raw compute throughput despite their different core counts and clock speeds. The average benchmark score reinforces this: the E5-4627 v3 averages 2789 across all benchmarks, while the D-1567 averages 2770, a difference of less than 1%.

Context from the nearest rivals makes the closeness even clearer. The E5-4627 v3 sits at the 51st percentile of all CPUs, with an average score of 2789. Its nearest rival, the Intel Core i5-11300H, scores 2792 with a delta of -0.1%, meaning the E5-4627 v3 trails that mobile chip by a tenth of a percent. The Intel Core i7-5930K and AMD Ryzen 3 PRO 4350G both score 2775 and 2774 respectively, placing them 0.5% behind the E5-4627 v3. The D-1567, also at the 51st percentile, averages 2770. Its nearest rival is the AMD Ryzen 3 PRO 4350GE at 2767 (0.1% ahead of the D-1567), followed by the Ryzen 3 PRO 4350G at 2774 (0.2% behind the D-1567) and the Core i7-5930K at 2775 (0.2% behind). Both processors occupy essentially the same performance tier, with the D-1567 roughly 19 points behind the E5-4627 v3 in average score.

# Where Each One Wins

The E5-4627 v3 wins every benchmark in the head-to-head comparison, so the case for choosing it rests on its consistent, if small, advantage in all six Cinebench tests. Its higher base clock of 2.60 GHz versus 2.10 GHz and boost clock of 3.20 GHz versus 2.70 GHz give it an edge in every workload category measured. The single-core results are particularly telling: while the margins are just 0.7%, the E5-4627 v3's higher clock speeds translate directly into superior performance in lightly threaded tasks. For multi-core workloads, the E5-4627 v3 also leads, despite having fewer cores (10 versus 12) and threads (20 versus 24). This implies the E5-4627 v3's higher per-core throughput more than compensates for the D-1567's additional cores.

The D-1567, while losing every head-to-head test, has its own structural advantages that the benchmark scores do not fully capture. It uses a 14 nm process node versus the E5-4627 v3's 22 nm, and its transistor count is higher at 3,200 million versus 2,600 million. Its die size is smaller at 246 mm² versus 356 mm², and its TDP is dramatically lower at 65 watts versus 135 watts. These factors make the D-1567 more suitable for dense, power-constrained deployments where the performance difference of 0.6-0.7% is acceptable trade for a 70-watt reduction in thermal design power. The D-1567 also supports both DDR3 and DDR4 memory, while the E5-4627 v3 is limited to DDR4.

Neither processor shows a decisive advantage in any workload category. The E5-4627 v3 wins all six tests, but the D-1567 loses by margins so small that real-world applications would be unlikely to show meaningful differences. The choice between them is less about performance and more about platform constraints: the E5-4627 v3 requires an Intel Socket 2011-3 motherboard with quad-channel memory support, while the D-1567 uses Intel BGA 1667, a soldered form factor suited to embedded and compact systems.

# The Verdict

The data points to a clear but narrow verdict: the Intel Xeon E5-4627 v3 is the faster processor in every benchmark measured, yet the differences are so small that they should rarely dictate a purchasing decision. The largest gap, 0.7%, appears in five of six tests; the smallest, 0.6%, appears in Cinebench R15 multi-core. For workloads that are sensitive to single-threaded performance, the E5-4627 v3's 3.20 GHz boost clock provides a measurable, if minor, advantage over the D-1567's 2.70 GHz.

However, the D-1567 offers a substantially lower TDP of 65 watts versus 135 watts, and it remains an active product while the E5-4627 v3 is end-of-life. The D-1567 also supports DDR3 memory in addition to DDR4, which may matter for existing infrastructure. The E5-4627 v3 counters with a quad-channel memory bus and 68.3 GB/s of memory bandwidth, compared to the D-1567's dual-channel design with no bandwidth figure provided.

For a system builder prioritizing raw benchmark scores, the E5-4627 v3 is the statistical winner. For someone prioritizing power efficiency, platform flexibility, and long-term availability, the D-1567 is the more pragmatic choice. The launch MSRP for the E5-4627 v3 is $2225. Neither processor is unlocked for overclocking, and both are aimed at the server/workstation segment.

# FAQ

Q: Which processor has higher multi-core performance?

A: The Intel Xeon E5-4627 v3 wins all three multi-core tests: 971 versus 965 in Cinebench R15, 4049 versus 4022 in R20, and 9642 versus 9578 in R23, with deltas of 0.6-0.7%.

Q: How do the single-core scores compare?

A: The E5-4627 v3 leads by 0.7% in every single-core test: 137 versus 136 in R15, 571 versus 567 in R20, and 1361 versus 1352 in R23.

Q: What is the core and thread count difference?

A: The E5-4627 v3 has 10 cores and 20 threads, while the D-1567 has 12 cores and 24 threads, giving the D-1567 a 2-core and 4-thread advantage.

Q: Which processor has lower power consumption?

A: The D-1567 has a TDP of 65 watts, compared to the E5-4627 v3's 135 watts, making the D-1567 more than 50% lower in thermal design power.

Q: Do both processors support ECC memory?

A: Yes, both the E5-4627 v3 and the D-1567 support ECC memory, but the E5-4627 v3 supports only DDR4 with a quad-channel bus, while the D-1567 supports both DDR3 and DDR4 with a dual-channel bus.

Q: What are the average benchmark scores for each?

A: The E5-4627 v3 averages 2789 across all benchmarks, while the D-1567 averages 2770, a difference of 19 points or roughly 0.7%.

# Architecture Differences

The two processors come from different Intel microarchitectures and manufacturing processes. The E5-4627 v3 is based on the Haswell architecture, specifically the Haswell-EP codename, built on a 22 nm process node. It contains 2,600 million transistors on a 356 mm² die. The D-1567 uses the Broadwell architecture, specifically Broadwell-DE, built on a 14 nm process node. It contains 3,200 million transistors on a smaller 246 mm² die. This represents a process node shrink from 22 nm to 14 nm and a transistor density increase despite the smaller die area.

The cache configurations differ significantly. The E5-4627 v3 has 64 KB of L1 cache per core and 256 KB of L2 cache per core, with a shared 25 MB L3 cache. The D-1567 also has 64 KB of L1 and 256 KB of L2 per core, but its L3 cache is 1.5 MB per core rather than a shared pool. With 12 cores, that totals 18 MB of L3, though the per-core allocation differs from the E5-4627 v3's shared design. The E5-4627 v3's larger shared L3 may benefit workloads with shared data access patterns.

The memory controllers also differ. The E5-4627 v3 supports DDR4 memory over a quad-channel bus, providing 68.3 GB/s of memory bandwidth. The D-1567 supports both DDR3 and DDR4 over a dual-channel bus, with no bandwidth figure provided in the data. Both support ECC memory. The E5-4627 v3 provides 40 PCIe Gen 3 lanes, while the D-1567 provides 24 lanes. The E5-4627 v3 uses Intel Socket 2011-3, while the D-1567 uses Intel BGA 1667, a soldered ball-grid-array package.

The release timeline and production status also differ. The E5-4627 v3 was released on 2015-05-31 and is end-of-life, while the D-1567 was released later on 2016-02-23 and remains active. Neither processor has integrated graphics, and both are locked (multiplier unlocked: false).

# Specification Differences

The two processors diverge across nearly every major specification. The core count differs: 10 cores and 20 threads for the E5-4627 v3 versus 12 cores and 24 threads for the D-1567. Clock speeds favor the E5-4627 v3 with a base of 2.60 GHz and boost of 3.20 GHz, against the D-1567's 2.10 GHz base and 2.70 GHz boost. TDP is a major differentiator: 135 watts for the E5-4627 v3 versus 65 watts for the D-1567.

The socket types are incompatible: Intel Socket 2011-3 for the E5-4627 v3 and Intel BGA 1667 for the D-1567. The process node advances from 22 nm to 14 nm, and the transistor count rises from 2,600 million to 3,200 million, while the die size shrinks from 356 mm² to 246 mm². The E5-4627 v3 has a shared 25 MB L3 cache, while the D-1567 has 1.5 MB per core. Memory support differs: DDR4 only with quad-channel for the E5-4627 v3, versus DDR3 and DDR4 with dual-channel for the D-1567. Memory bandwidth is 68.3 GB/s for the E5-4627 v3, with no figure listed for the D-1567. PCIe lanes total 40 for the E5-4627 v3 and 24 for the D-1567.

The launch MSRP differs: $2225 for the E5-4627 v3 and 1199 for the D-1567. The part numbers are SR22Q for the E5-4627 v3 and SR2M3 for the D-1567. Production status separates them as end-of-life versus active. Release dates are 2015-05-31 and 2016-02-23 respectively. Both processors are Intel parts, both target the server/workstation segment, both support ECC memory, both lack integrated graphics, and both have locked multipliers. The average benchmark scores are 2789 and 2770, with both at the 51st percentile of all CPUs.