Intel Xeon E-2314 vs Intel Xeon E3-1558L v5 Comparison
Intel Xeon E-2314
Xeon E3-1558L v5
PERFORMANCE BENCHMARKS
Analysis: Intel Xeon E-2314 vs Intel Xeon E3-1558L v5
Where Each One Wins
The benchmark data presents a clear and consistent picture: the Intel Xeon E-2314 wins every single recorded test against the Intel Xeon E3-1558L v5. Out of six head-to-head Cinebench comparisons, the E-2314 takes all six, while the E3-1558L v5 records zero wins. This is not a case of one part excelling in specific workloads and the other in different ones; the E-2314 holds the advantage across both single-core and multi-core rendering tasks.
The margin is narrow but uniform. In multi-core tests, the E-2314 leads by 1.7% in Cinebench R15, 1.5% in R20, and 1.6% in R23. In single-core tests, the lead is 1.1% in R15, 1.6% in R20, and 1.6% in R23. The consistency of these deltas (all between 1.1% and 1.7%) suggests a steady performance edge rather than workload-specific behavior. The E-2314 wins by a small but repeatable margin in every scenario the database records.
For users deciding between these two, the use-case split is straightforward: the E-2314 is the faster processor in every measured benchmark. However, the E3-1558L v5 retains relevance through its integrated Iris Pro Graphics P555, which the E-2314 lacks entirely. If the workload requires GPU compute or display output without a discrete graphics card, the E3-1558L v5 is the only option of the two. The E-2314, by contrast, offers no integrated graphics, meaning a separate GPU is mandatory for any visual output or GPU-accelerated task.
Another differentiating factor is platform flexibility. The E3-1558L v5 supports both DDR3 and DDR4 memory, while the E-2314 is limited to DDR4. Systems with existing DDR3 inventory or legacy memory constraints might favor the older part. Yet for raw CPU throughput, the database shows the E-2314 ahead across the board.
Architecture Differences
The two processors come from different architectural generations and are built for different sockets. The Intel Xeon E-2314 is based on Rocket Lake-E, a 14 nm design from the Xeon E-2300 series, and uses Intel Socket 1200. It features 4 cores and 4 threads, meaning no Hyper-Threading: each core handles exactly one thread. The E3-1558L v5, in contrast, is a Skylake-H part (also 14 nm) on Intel BGA 1440, with 4 cores but 8 threads via Hyper-Threading. This is a notable structural difference: the E3-1558L v5 has twice as many logical threads available, yet it still loses all multi-core benchmarks to the E-2314. The E-2314 compensates with a substantially higher clock speed.
Clock behavior reinforces this. The E-2314 has a base clock of 2.80 GHz and a boost clock of 4.50 GHz, while the E3-1558L v5 operates at a much lower 1900.00 MHz base (1.90 GHz) and 3.30 GHz boost. The E-2314's boost clock is 1.20 GHz higher, which explains its single-core dominance. The E3-1558L v5's lower clocks are likely a consequence of its 45 W TDP and mobile-oriented Skylake-H design, versus the E-2314's 65 W TDP for a server/workstation socketed platform.
Cache hierarchies differ as well. The E-2314 has 80 KB of L1 cache per core and 512 KB of L2 per core, while the E3-1558L v5 has 64 KB L1 per core and 256 KB L2 per core. Both share 8 MB of L3 cache, so the primary per-core cache advantage goes to the E-2314. The die size also reflects the architectural gap: the E-2314 measures 276 mm², while the E3-1558L v5 is smaller at 171 mm² and carries 2,300 million transistors (the E-2314's transistor count is not recorded).
Memory and PCIe capabilities differ too. The E-2314 supports DDR4 with dual-channel memory and a bandwidth of 51.2 GB/s, plus PCIe Gen 4 with 20 CPU lanes. The E3-1558L v5 supports both DDR3 and DDR4, also dual-channel, but with a lower memory bandwidth of 34.1 GB/s and PCIe Gen 3 with 16 lanes. The E-2314 offers a newer, wider, and faster I/O interface. The E3-1558L v5 includes integrated Iris Pro Graphics P555; the E-2314 has no integrated graphics. Both support ECC memory.
Head-to-Head Benchmarks
The recorded Cinebench results show the E-2314 leading in all six comparisons, but the margins are worth examining closely.
Starting with multi-core: in Cinebench R15, the E-2314 scores 666 versus the E3-1558L v5's 655, a 1.7% advantage. In R20, the scores are 2775 against 2733, a 1.5% lead. In R23, the E-2314 posts 6609 versus 6508, again 1.6% ahead. These are close results, but they hold consistently across three different Cinebench versions, which suggests the E-2314's higher clock speed and larger per-core caches outweigh the E3-1558L v5's thread advantage. Even with twice as many threads, the older Skylake-H part cannot overcome the Rocket Lake-E's frequency lead in this multi-threaded workload.
Single-core results follow the same pattern. In Cinebench R15, the E-2314 scores 93 versus 92, a 1.1% edge. In R20, the scores are 391 versus 385, a 1.6% lead. In R23, the E-2314 scores 933 versus 918, again 1.6% higher. The single-core margins are slightly more variable (1.1% to 1.6%) but remain positive for the E-2314 in every test.
The aggregate benchmark picture reinforces this. The E-2314 has an average benchmark score of 1911, placing it at the 43rd percentile among all CPUs. Its nearest rivals include the Intel Xeon E3-1575M v5 (1910, 0% delta) and the AMD Ryzen 5 PRO 2400GE (1910, 0% delta). The E3-1558L v5 has an average score of 1882, also at the 43rd percentile, with nearest rivals like the Intel Xeon E3-1270L v4 (1883, -0.1% delta) and Intel Xeon D-1531 (1885, -0.1% delta). The 29-point average score gap between the two parts is modest, but it aligns with the consistent head-to-head wins for the E-2314.
FAQ
Q: Which processor is faster in multi-core benchmarks?
A: The Intel Xeon E-2314 wins all three multi-core Cinebench tests: 666 vs 655 in R15, 2775 vs 2733 in R20, and 6609 vs 6508 in R23.
Q: Does the Intel Xeon E3-1558L v5 have any advantage in threads?
A: Yes, it has 8 threads versus 4 on the E-2314, but this does not translate into a benchmark win. The E-2314 still leads all multi-core tests despite having half the threads.
Q: Which processor supports integrated graphics?
A: Only the Intel Xeon E3-1558L v5 has integrated graphics (Iris Pro Graphics P555). The Intel Xeon E-2314 has no integrated graphics and requires a discrete GPU.
Q: What memory types does each processor support?
A: The E3-1558L v5 supports both DDR3 and DDR4, while the E-2314 supports only DDR4. Both use dual-channel memory buses.
Q: How do the single-core scores compare?
A: The E-2314 leads in all single-core tests: 93 vs 92 in R15, 391 vs 385 in R20, and 933 vs 918 in R23. The margins range from 1.1% to 1.6%.
Q: What is the average benchmark score difference?
A: The E-2314 has an average score of 1911, while the E3-1558L v5 averages 1882, a difference of 29 points. Both sit at the 43rd percentile among all CPUs.
Specification Differences
The two processors differ across nearly every major specification category. The most fundamental difference is threading: the E-2314 has 4 cores and 4 threads, while the E3-1558L v5 has 4 cores and 8 threads. Clock speeds are also far apart: the E-2314 runs at 2.80 GHz base and 4.50 GHz boost, versus the E3-1558L v5's 1900.00 MHz base (1.90 GHz) and 3.30 GHz boost. The E-2314's TDP is 65 W, the E3-1558L v5's is 45 W.
Socket and platform differ completely: the E-2314 uses Intel Socket 1200, the E3-1558L v5 uses Intel BGA 1440. The E-2314 is based on Rocket Lake-E architecture (codename Rocket Lake-E), while the E3-1558L v5 uses Skylake (codename Skylake-H). Both are 14 nm parts from Intel, but the E-2314 has a larger die at 276 mm² versus 171 mm² for the E3-1558L v5. The E3-1558L v5 has a recorded transistor count of 2,300 million; the E-2314's is not recorded.
Cache configurations differ per core: the E-2314 has 80 KB L1 and 512 KB L2 per core, while the E3-1558L v5 has 64 KB L1 and 256 KB L2 per core. Both share 8 MB of L3 cache. Memory bandwidth favors the E-2314 at 51.2 GB/s versus 34.1 GB/s. PCIe support also differs: the E-2314 offers Gen 4 with 20 lanes, the E3-1558L v5 offers Gen 3 with 16 lanes. The E3-1558L v5 includes integrated Iris Pro Graphics P555; the E-2314 has none. Both support ECC memory.
Production status and release dates differ as well: the E-2314 is marked Active and released on 2021-09-07, while the E3-1558L v5 is End-of-life and released on 2016-05-30. The launch MSRP for the E-2314 is $182; the E3-1558L v5 launched at $396. The E-2314 has part number SRKN8, the E3-1558L v5 is SR2TU. Neither has an unlocked multiplier.