CPU Comparison

The AMD Opteron 3365 and Intel Xeon D-1527 are both server-oriented processors, yet they represent fundamentally different design philosophies. The Opteron 3365, an end-of-life part from AMD’s Opteron 3000 series, relies on an older K10 architecture with eight physical cores but no simultaneous multithreading. In contrast, the Intel Xeon D-1527 is an active, 14 nm Broadwell-DE part that uses four physical cores with Hyper-Threading to achieve eight threads. Benchmark data shows a consistent performance advantage for the Intel part across all tested workloads, despite the AMD chip having double the physical core count. The following analysis details the architectural distinctions, head-to-head benchmark results, and the specific scenarios where each processor holds an advantage.

FAQ

Q: Which processor has more physical cores?

A: The AMD Opteron 3365 has 8 physical cores and 8 threads, while the Intel Xeon D-1527 has 4 physical cores and 8 threads. This means the AMD part relies entirely on its physical core count, whereas the Intel part uses Hyper-Threading to double its thread count.

Q: How do their average benchmark scores compare?

A: The Intel Xeon D-1527 has an average benchmark score of 1207, while the AMD Opteron 3365 scores 1194. This places the Intel part slightly ahead, with a difference of roughly 1.1% in average performance. Both processors sit at the 34th percentile among all CPUs.

Q: What is the biggest performance gap in the head-to-head tests?

A: The largest deltas appear in single-core tests. In Cinebench R20 single-core, the Intel Xeon D-1527 scores 247 versus the AMD’s 205, a 17% advantage. Similarly, in Cinebench R23 single-core, the Intel part leads 589 to 489, also a 17% gap.

Q: Does the AMD Opteron 3365 win any head-to-head benchmark?

A: No. According to the head-to-head data, the Intel Xeon D-1527 wins all five compared benchmarks. The AMD Opteron 3365 has zero wins (winsA: 0), while the Intel part has five wins (winsB: 5).

Q: What are the memory support differences between the two?

A: The AMD Opteron 3365 supports only DDR3 memory with a dual-channel bus and a bandwidth of 29.9 GB/s. The Intel Xeon D-1527 supports both DDR3 and DDR4 memory with a dual-channel bus, but its memory bandwidth is not listed in the data. Additionally, the Intel part supports ECC memory, while the AMD part does not.

Q: How do their production statuses differ?

A: The AMD Opteron 3365 is marked as end-of-life, while the Intel Xeon D-1527 is active. The Intel processor also has a recorded release date of 2015-10-31 and a launch MSRP of $213, whereas the AMD processor has no release date or launch MSRP listed.

Architecture Differences

The two processors are built on completely different silicon and design generations. The AMD Opteron 3365 uses the K10 architecture with the codename Delhi, fabricated on a 32 nm process at GlobalFoundries with 1,200 million transistors on a 315 mm² die. This is an older, monolithic design that integrates eight cores without SMT. The Intel Xeon D-1527 uses the Broadwell architecture (codename Broadwell-DE) on a 14 nm process at Intel, with 3,200 million transistors packed into a 246 mm² die. The Intel design uses four cores with Hyper-Threading, yielding eight threads from a smaller physical core count.

Cache hierarchies diverge significantly. The AMD part has a 384 KB L1 cache, a 4 MB L2 cache, and an 8 MB shared L3 cache. The Intel part lists its cache per core: 64 KB L1 per core, 256 KB L2 per core, and 1.5 MB L3 per core. For a 4-core processor, this implies roughly 256 KB of L1, 1 MB of L2, and 6 MB of L3 total, though the data does not provide aggregate totals. The AMD design offers a larger shared L3 pool, but the Intel part’s per-core L3 allocation is more generous relative to its core count.

Memory and I/O features also separate the two. The AMD Opteron 3365 supports only DDR3 memory with dual-channel access, achieving a bandwidth of 29.9 GB/s, and lacks ECC support. It uses PCIe Gen 2 and has integrated graphics available only through a chipset feature on certain motherboards. The Intel Xeon D-1527 supports both DDR3 and DDR4 memory with dual-channel access, includes ECC support, and provides PCIe Gen 3 with 24 lanes (CPU only). The Intel part has no integrated graphics listed. The AMD chip uses an AMD Socket AM3+ while the Intel chip uses Intel BGA 1667, making them physically incompatible.

The Intel part’s transistor count is over 2.6 times higher than the AMD’s, despite a smaller die size, reflecting the denser 14 nm process. The AMD part’s TDP is 65 watts, while the Intel part is rated at 35 watts. Both processors have locked multipliers, but they target the same server/workstation market segment.

Head-to-Head Benchmarks

The benchmark results are unambiguous: the Intel Xeon D-1527 outperforms the AMD Opteron 3365 in every tested workload. In Cinebench R15 multi-core, the Intel part scores 420 against AMD’s 349, a 16.9% advantage. The same 16.9% delta appears in Cinebench R20 multi-core, where Intel scores 1753 versus AMD’s 1457. Cinebench R23 multi-core shows a similar pattern, with Intel at 4176 and AMD at 3470, again a 16.9% difference.

Single-core results show a slightly larger gap. In Cinebench R20 single-core, the Intel Xeon D-1527 scores 247, which is 17% higher than AMD’s 205. In Cinebench R23 single-core, the Intel part scores 589 versus AMD’s 489, also a 17% delta. This consistent ~17% advantage in both multi-core and single-core tests suggests the Intel architecture’s efficiency per thread is significantly higher, despite the AMD chip having twice the physical cores.

The AMD Opteron 3365’s nearest rivals include the AMD Athlon PRO 300U, Intel Core i3-4170, and Intel Core i7-8665UE, all with an average score of 1193 and a delta of 0.1%. The AMD Ryzen Embedded V1605B scores 1196 with a -0.1% delta. The Intel Xeon D-1527’s nearest rivals include the Intel Xeon D-1520 (1209, -0.1%), Intel Core i3-8121U (1209, -0.2%), Intel Xeon E5645 (1211, -0.3%), and Intel Core i3-7300T (1211, -0.3%). Both processors sit at the same 34th percentile, but the Intel part’s average score is slightly higher.

The Verdict

Based strictly on the benchmark data, the Intel Xeon D-1527 is the superior performer. It wins all five head-to-head comparisons, with a consistent 16.9% to 17% margin across both multi-core and single-core workloads. The AMD Opteron 3365, despite having 8 physical cores, cannot match the 4-core Intel part in any tested scenario. This indicates that the Intel architecture’s per-core efficiency, combined with Hyper-Threading, more than compensates for the AMD chip’s raw core count.

The data also shows the Intel part is more power-efficient, with a 35 watt TDP compared to AMD’s 65 watts. The Intel processor is active and has a launch MSRP of $213, while the AMD part is end-of-life with no listed pricing. For any new deployment, the Intel Xeon D-1527 appears to be the safer and more performant choice. The AMD Opteron 3365’s only potential advantage lies in its larger shared L3 cache (8 MB) and its support for 8 physical cores, which might benefit workloads that are extremely sensitive to physical core counts rather than thread counts, though no benchmark in the data demonstrates such a benefit.

Specification Differences

The following specifications differ between the AMD Opteron 3365 and Intel Xeon D-1527:

• Cores: 8 (AMD) vs 4 (Intel)
• Threads: 8 (AMD) vs 8 (Intel)
• Base Clock: 2.30 GHz (AMD) vs 2.20 GHz (Intel)
• Boost Clock: 3.30 GHz (AMD) vs 2.70 GHz (Intel)
• TDP: 65 W (AMD) vs 35 W (Intel)
• Socket: AMD Socket AM3+ (AMD) vs Intel BGA 1667 (Intel)
• Architecture: K10 (AMD) vs Broadwell (Intel)
• Process Node: 32 nm (AMD) vs 14 nm (Intel)
• Foundry: GlobalFoundries (AMD) vs Intel (Intel)
• Transistors: 1,200 million (AMD) vs 3,200 million (Intel)
• Die Size: 315 mm² (AMD) vs 246 mm² (Intel)
• L1 Cache: 384 KB total (AMD) vs 64 KB per core (Intel)
• L2 Cache: 4 MB total (AMD) vs 256 KB per core (Intel)
• L3 Cache: 8 MB shared (AMD) vs 1.5 MB per core (Intel)
• Memory Support: DDR3 (AMD) vs DDR3, DDR4 (Intel)
• Memory Bandwidth: 29.9 GB/s (AMD) vs not listed (Intel)
• ECC Memory: false (AMD) vs true (Intel)
• PCIe: Gen 2 (AMD) vs Gen 3, 24 Lanes (CPU only) (Intel)
• Integrated Graphics: On certain motherboards (Chipset feature) (AMD) vs not listed (Intel)
• Production Status: End-of-life (AMD) vs Active (Intel)
• Release Date: not listed (AMD) vs 2015-10-31 (Intel)
• Launch MSRP: not listed (AMD) vs $213 (Intel)
• Part Number: OS3365OLW8KHK (AMD) vs SR2DK (Intel)

Where Each One Wins

The Intel Xeon D-1527 wins in every measured benchmark category. For multi-threaded workloads such as Cinebench R15, R20, and R23 multi-core, the Intel part leads by 16.9% each time. For single-threaded workloads in Cinebench R20 and R23, the Intel part leads by 17%. This makes the Intel processor the clear choice for tasks that rely on raw CPU throughput, whether multi-core rendering or single-core responsiveness.

The AMD Opteron 3365 does not win any head-to-head benchmark, so its advantages must be inferred from specifications rather than performance data. It has double the physical cores (8 versus 4), a larger total L3 cache (8 MB shared versus 1.5 MB per core), and a higher base clock (2.30 GHz versus 2.20 GHz) and boost clock (3.30 GHz versus 2.70 GHz). These traits could theoretically benefit workloads that prefer physical cores over threads or that require a large shared cache. However, the benchmark data shows no scenario where the AMD chip’s specifications translate into a performance win.

For power-sensitive deployments, the Intel Xeon D-1527’s 35 watt TDP is nearly half of the AMD’s 65 watts, making it more suitable for dense or low-power server environments. The Intel part also supports ECC memory and PCIe Gen 3, which are valuable for reliability and modern I/O. The AMD Opteron 3365, being end-of-life with no ECC support and older PCIe Gen 2, is better suited for legacy systems or scenarios where physical core count is a hard requirement, despite the lack of benchmark evidence supporting its use.