Intel Xeon D-1577 vs Intel Xeon E5-4627 v3 Comparison

Head-to-Head Benchmarks

The benchmark data shows a consistent, though narrow, advantage for the Intel Xeon E5-4627 v3 across every recorded Cinebench test. In the R15 multi-core test, the E5-4627 v3 scores 971 against the Xeon D-1577's 946, a 2.6% lead. The single-core result is similar: 137 versus 133, a 3% margin. These are not dramatic victories, but they are uniform.

Moving to the R20 suite, the pattern holds. The E5-4627 v3 posts 4049 in multi-core versus 3943 for the D-1577, a 2.7% difference. In single-core, the scores are 571 and 556, again a 2.7% gap. The R23 results repeat the same story: 9642 versus 9389 in multi-core and 1361 versus 1325 in single-core, both with a 2.7% delta.

So in every head-to-head comparison, the E5-4627 v3 wins. That is six wins and zero losses for the older Haswell part. However, the margins are small, between 2.6% and 3%. This is not a case of one processor dominating another; it is a case of one processor being slightly faster in every measured workload. The practical takeaway is that for pure Cinebench rendering throughput, the E5-4627 v3 holds a real but modest edge.

Looking at the broader database context, the E5-4627 v3 sits at the 51st percentile of all CPUs, while the D-1577 is at the 50th. Their average benchmark scores are 2789 and 2715, respectively. The nearest rivals for the E5-4627 v3 include the Intel Core i5-11300H (average score 2792, a 0.1% difference) and the Intel Core i7-5930K (2775, a 0.5% difference). The D-1577 is closely matched with the Intel Core i7-11390H (2715, exactly even) and the AMD Ryzen 5 PRO 5650U (2713, a 0.1% difference). This places both Xeons in a similar performance tier, despite their different architectures and core counts.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon D-1577 has 16 cores and 32 threads. The Intel Xeon E5-4627 v3 has 10 cores and 20 threads.

Q: How do their clock speeds compare?

A: The E5-4627 v3 has a base clock of 2.60 GHz and a boost clock of 3.20 GHz. The D-1577 has a base clock of 1300.00 MHz (1.30 GHz) and a boost clock of 2.10 GHz. The E5-4627 v3 runs at significantly higher frequencies.

Q: Which chip has the larger thermal design power (TDP)?

A: The E5-4627 v3 has a TDP of 135 watts. The D-1577 has a much lower TDP of 45 watts.

Q: What memory types do they support?

A: The E5-4627 v3 supports DDR4 memory with a quad-channel bus. The D-1577 supports both DDR3 and DDR4, but uses a dual-channel bus.

Q: Are both processors still in production?

A: No. The E5-4627 v3 is listed as end-of-life, while the D-1577 is listed as active.

Q: What is the launch MSRP for each?

A: The E5-4627 v3 had a launch MSRP of $2225. The D-1577 had a launch MSRP of 1379.

Architecture Differences

These two processors represent different design philosophies from Intel. The E5-4627 v3 is built on the Haswell-EP architecture using a 22 nm process node. It packs 2,600 million transistors on a 356 mm² die. Its cache layout is straightforward: 64 KB of L1 per core, 256 KB of L2 per core, and a shared 25 MB L3 cache.

The D-1577, on the other hand, uses the Broadwell architecture on a 14 nm process node. It integrates 3,200 million transistors on a smaller 246 mm² die. Its cache structure is different: still 64 KB of L1 per core and 256 KB of L2 per core, but the L3 is allocated as 1.5 MB per core rather than a single shared pool. This is a notable difference in cache design.

The memory subsystems also diverge. The E5-4627 v3 uses a quad-channel DDR4 interface with a theoretical bandwidth of 68.3 GB/s. The D-1577 uses a dual-channel interface that supports both DDR3 and DDR4, but the database does not list a bandwidth figure for it. Both support ECC memory, which is expected for server parts.

PCIe connectivity differs as well. The E5-4627 v3 offers Gen 3 with 40 lanes, while the D-1577 provides Gen 3 with 24 lanes. The sockets are completely different: the E5-4627 v3 fits Intel Socket 2011-3, while the D-1577 is a BGA 1667 soldered part. The D-1577 is built on a newer process node and has a higher transistor count, but the E5-4627 v3 has higher clock speeds and a wider memory bus.

The Verdict

The data points to a clear, if narrow, winner for raw compute performance: the Intel Xeon E5-4627 v3. It wins all six Cinebench tests, with margins ranging from 2.6% to 3%. Its higher clock speeds, 2.60 GHz base and 3.20 GHz boost, likely drive this advantage despite having fewer cores than the D-1577. The E5-4627 v3 also carries a higher average benchmark score, 2789 versus 2715, and a slightly higher percentile ranking.

However, the D-1577 is not without its own strengths. It offers 16 cores and 32 threads, which is 60% more cores and 60% more threads than the E5-4627 v3. It also has a dramatically lower TDP of 45 watts versus 135 watts, making it a far more power-efficient option. The D-1577 is also on a newer 14 nm process node and remains in active production, while the E5-4627 v3 is end-of-life.

Which chip should you pick? If your priority is maximum multi-threaded rendering performance in Cinebench, the E5-4627 v3 is the better choice, even if the margin is small. If you need more cores for parallel workloads that scale beyond what Cinebench captures, or if power consumption and a compact BGA form factor are critical, the D-1577 is the more sensible pick. The E5-4627 v3 is the faster part in the measured tests; the D-1577 is the more modern and efficient design.

Specification Differences

The two processors differ across nearly every major specification. The E5-4627 v3 has 10 cores and 20 threads, while the D-1577 has 16 cores and 32 threads. Clock speeds are starkly different: the E5-4627 v3 runs at 2.60 GHz base and 3.20 GHz boost, while the D-1577 runs at 1300.00 MHz base and 2.10 GHz boost. TDP is also a major separator: 135 watts for the E5-4627 v3 versus 45 watts for the D-1577.

The sockets are incompatible: the E5-4627 v3 uses Intel Socket 2011-3, while the D-1577 uses Intel BGA 1667. The architecture generation differs, with the E5-4627 v3 on Haswell-EP (22 nm) and the D-1577 on Broadwell-DE (14 nm). Die size and transistor counts differ: 356 mm² and 2,600 million for the E5-4627 v3, versus 246 mm² and 3,200 million for the D-1577.

Cache configurations are different, with the E5-4627 v3 offering 25 MB of shared L3 and the D-1577 offering 1.5 MB per core. Memory support diverges: the E5-4627 v3 uses quad-channel DDR4 with 68.3 GB/s bandwidth, while the D-1577 uses dual-channel DDR3 or DDR4 with no listed bandwidth. PCIe lane counts differ: 40 lanes for the E5-4627 v3 versus 24 lanes for the D-1577. The production status also differs, with the E5-4627 v3 end-of-life and the D-1577 active.

Where Each One Wins

The E5-4627 v3 wins in every recorded benchmark test. It is the faster chip for Cinebench R15, R20, and R23, in both single-core and multi-core runs. The margins are consistent, between 2.6% and 3%, which suggests a stable performance advantage across different rendering workloads. If your work involves video rendering, 3D modeling, or any task that mirrors Cinebench's workload, the E5-4627 v3 is the one to choose.

The D-1577 does not win any of the head-to-head tests, but it wins on other criteria. It has more cores and threads, which can be advantageous for heavily parallel server workloads that are not well represented by Cinebench. It has a much lower TDP, making it suitable for dense, power-constrained deployments or fanless systems. It also supports both DDR3 and DDR4 memory, offering flexibility in existing server infrastructure. Its active production status means it is still available for new designs, whereas the E5-4627 v3 is end-of-life.

In practical terms, the E5-4627 v3 is the choice for a socketed workstation build where rendering speed matters most. The D-1577 is the choice for an embedded or compact server where core count, power efficiency, and memory flexibility take priority over raw Cinebench scores. The data shows a narrow performance win for the E5-4627 v3, but the D-1577's design advantages make it the better fit for a different class of deployment.