AMD Opteron 3365 vs Intel Xeon E5-1607 v3 Comparison

Head-to-Head Benchmarks

The benchmark data presents a consistent picture across all recorded Cinebench tests: the Intel Xeon E5-1607 v3 wins every single head-to-head matchup against the AMD Opteron 3365. The database records five head-to-head comparisons, and Intel takes all five. The margins are remarkably uniform, hovering around the 20.8% to 21% range in every test.

Starting with multi-core performance, the Intel part scores 422 in Cinebench R15 multi-core against the AMD's 349, a delta of 20.9%. The gap persists in Cinebench R20 multi-core, where Intel posts 1761 versus AMD's 1457, again a 20.9% advantage. In Cinebench R23 multi-core, the Intel Xeon E5-1607 v3 reaches 4193, while the Opteron 3365 manages 3470, a 20.8% lead. The consistency of these deltas across three different Cinebench versions suggests a structural performance advantage rather than a test-specific anomaly.

Single-core results tell the same story. In Cinebench R20 single-core, Intel scores 248 against AMD's 205, a 21% delta. In Cinebench R23 single-core, the numbers are 591 and 489 respectively, a 20.9% edge for Intel. The Intel part also holds a single-core advantage in Cinebench R15, though the database only records the multi-core score for that version (59 for Intel in single-core, while AMD's R15 single-core score is not listed).

The average benchmark scores in the database place the Intel Xeon E5-1607 v3 at 1212 and the AMD Opteron 3365 at 1194, a difference of only 1.5%. This near-parity in aggregate averages is notable given the consistent 20%+ margins in the direct head-to-head tests. The explanation lies in the nearest rivals data: both CPUs sit at the 34th percentile of all CPUs, and their closest competitors are similarly positioned. The Intel part's nearest rivals include the Intel Core i3-7300T at 1211 (0.1% delta) and the Intel Xeon E5645 at 1211 (0.1% delta). The AMD part's nearest rivals include the AMD Athlon PRO 300U at 1193 (0.1% delta) and the Intel Core i3-4170 at 1193 (0.1% delta). The aggregate scores smooth out the head-to-head deltas because each CPU is being compared against a different set of similarly performing parts.

Architecture Differences

The two processors come from fundamentally different design eras and philosophies. The Intel Xeon E5-1607 v3 uses the Haswell architecture (codename Haswell-EP) built on a 22 nm process at Intel's foundry. It packs 2,600 million transistors into a 356 mm² die. The AMD Opteron 3365 uses the K10 architecture (codename Delhi) on a 32 nm process at GlobalFoundries, with 1,200 million transistors on a 315 mm² die. The transistor count difference is stark: Intel packs more than double the transistors into a slightly larger die, reflecting the newer process node and more complex microarchitecture.

Core configuration differs substantially. The Intel part has 4 cores and 4 threads, meaning no hyper-threading. The AMD part has 8 cores and 8 threads. Despite having half the cores, the Intel part wins every benchmark, which speaks to the per-core efficiency of the Haswell design compared to the older K10 architecture. The AMD's 8 cores at a 2.30 GHz base clock (3.30 GHz boost) cannot overcome the Intel's 4 cores at a 3.10 GHz base clock with superior IPC.

Cache hierarchies also diverge. The Intel Xeon E5-1607 v3 has 64 KB of L1 per core, 256 KB of L2 per core, and 10 MB of shared L3. The AMD Opteron 3365 has 384 KB of L1 total, 4 MB of L2 total, and 8 MB of shared L3. The Intel design allocates cache per core more generously, while the AMD part pools smaller amounts across its 8 cores.

Memory support marks one of the clearest generational divides. The Intel part supports DDR4 memory with a quad-channel bus, delivering 59.7 GB/s of memory bandwidth. The AMD part supports DDR3 with a dual-channel bus, delivering 29.9 GB/s. That is a 100% bandwidth advantage for Intel, which directly impacts workloads that are memory-bandwidth sensitive, such as large dataset processing or multi-threaded rendering tasks.

ECC memory support also differs: the Intel Xeon E5-1607 v3 supports ECC memory, while the AMD Opteron 3365 does not. PCIe capabilities follow suit, with Intel offering Gen 3 with 40 lanes (CPU only) versus AMD's Gen 2. The Intel part has no integrated graphics, while the AMD part lists integrated graphics as a chipset feature on certain motherboards. Both parts lack an unlocked multiplier, and both are end-of-life products. The Intel part's launch date is recorded as September 2014, while the AMD part's release date is not listed in the database.

The Verdict

The data overwhelmingly favors the Intel Xeon E5-1607 v3 in raw compute performance. In every recorded Cinebench test, the Intel part leads by roughly 21%. This is a decisive margin that holds across single-core and multi-core workloads alike. The AMD Opteron 3365 offers more cores (8 versus 4) but cannot translate that into a performance win, which indicates that the K10 architecture's per-core throughput is significantly behind Haswell's.

For workloads that rely on Cinebench-style rendering performance, the Intel Xeon E5-1607 v3 is the clear choice from the recorded data. The AMD part's only advantages in the database are its lower TDP (65 watts versus 140 watts), its larger core count, and its boost clock capability (3.30 GHz versus no boost clock listed for Intel). The AMD part also supports DDR3 memory, which may be a consideration for platforms with existing DDR3 infrastructure, but the memory bandwidth data (29.9 GB/s versus 59.7 GB/s) shows a substantial Intel advantage.

The percentile rankings are identical at 34%, and the average benchmark scores are close (1212 versus 1194), which means in the broader CPU landscape, these two parts are roughly equivalent overall. But in direct head-to-head Cinebench testing, the Intel part is consistently and significantly ahead. The verdict from the data is straightforward: if the workload is Cinebench-style compute, the Intel Xeon E5-1607 v3 wins, and it wins by a wide margin. The AMD Opteron 3365's case rests on lower power consumption and higher core count, but no benchmark in the database shows a scenario where those attributes translate into a performance victory.

FAQ

Q: Which CPU wins in Cinebench R23 multi-core?

A: The Intel Xeon E5-1607 v3 scores 4193 versus the AMD Opteron 3365's 3470, a 20.8% advantage for Intel.

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

A: No. Across all five recorded head-to-head tests (Cinebench R15 multi-core, R20 multi-core, R20 single-core, R23 multi-core, and R23 single-core), the Intel Xeon E5-1607 v3 wins every matchup.

Q: What is the core count difference between the two CPUs?

A: The Intel Xeon E5-1607 v3 has 4 cores and 4 threads, while the AMD Opteron 3365 has 8 cores and 8 threads.

Q: How do the memory systems compare?

A: The Intel part supports DDR4 with a quad-channel bus and 59.7 GB/s bandwidth. The AMD part supports DDR3 with a dual-channel bus and 29.9 GB/s bandwidth. The Intel part also supports ECC memory, while the AMD part does not.

Q: What are the TDP ratings for each CPU?

A: The Intel Xeon E5-1607 v3 has a TDP of 140 watts, while the AMD Opteron 3365 has a TDP of 65 watts.

Q: How close are the average benchmark scores?

A: The Intel Xeon E5-1607 v3 has an average benchmark score of 1212, and the AMD Opteron 3365 has an average score of 1194, a difference of 1.5%. Both sit at the 34th percentile of all CPUs.

Where Each One Wins

The Intel Xeon E5-1607 v3 wins in every performance metric recorded in the database. Its victories span single-core and multi-core Cinebench tests, with deltas of 20.8% to 21% across the board. The Intel part's advantages extend beyond raw compute: it offers double the memory bandwidth (59.7 GB/s versus 29.9 GB/s), a newer process node (22 nm versus 32 nm), more than double the transistors (2,600 million versus 1,200 million), and ECC memory support that the AMD part lacks. The Intel part also uses DDR4 memory, which is a more modern standard, and provides PCIe Gen 3 with 40 lanes versus the AMD's PCIe Gen 2. For any workload that stresses compute throughput, memory bandwidth, or modern platform features, the Intel Xeon E5-1607 v3 is the winner in this comparison.

The AMD Opteron 3365's wins are not in performance but in specific platform characteristics. It has double the core count (8 versus 4), which could be relevant for workloads that scale by core count rather than per-core performance, though the benchmark data does not show any such workload where AMD wins. The AMD part has a substantially lower TDP at 65 watts versus 140 watts, meaning it draws less power and generates less heat, which is relevant for dense server deployments or power-constrained environments. The AMD part also has a boost clock of 3.30 GHz, while the Intel part's boost clock is not listed, and it supports DDR3 memory, which could be an advantage for organizations with existing DDR3 infrastructure. The AMD part also lists integrated graphics as a chipset feature on certain motherboards, which could simplify systems that do not require a discrete GPU. Finally, the AMD part's die size is smaller at 315 mm² versus 356 mm², and it uses a Socket AM3+ platform, which may have lower platform costs, though the database does not include pricing data.

In use-case terms, the Intel Xeon E5-1607 v3 is the choice for compute-heavy server or workstation tasks, particularly those that are memory-bandwidth sensitive or require ECC memory for data integrity. The AMD Opteron 3365 is the choice for power-sensitive deployments, multi-core scaling experiments, or platforms that require DDR3 memory compatibility or a chipset-based integrated graphics solution. The benchmark data does not show any performance scenario where AMD wins, so the AMD part's advantages are strictly in the platform and power domains.