CPU Comparison

The Intel Xeon E-2314 and Intel Xeon E3-1285 v4 are two server/workstation processors separated by six years of platform evolution, yet their benchmark results land remarkably close. The E-2314 edges ahead in every single test, but the margins are thin, ranging from 0% to 0.3%. Both CPUs sit at the 43rd percentile among all CPUs, and their average benchmark scores differ by only 3 points (1911 vs 1908). This comparison walks through the head-to-head numbers, the architectural differences that explain them, and the practical implications for each chip.

Head-to-Head Benchmarks

The data shows a clean sweep for the Intel Xeon E-2314, but the victories are narrow in every discipline. In Cinebench R15 multi-core, the E-2314 scores 666 against 664 for the E3-1285 v4, a 0.3% lead. The single-core R15 test is a dead heat: both chips post 93 points, with a delta of 0%. Moving to Cinebench R20, the multi-core result favors the E-2314 by 0.2%, with scores of 2775 and 2770. The R20 single-core test ties again at 391 points for both processors, showing no measurable difference in that workload.

The most demanding benchmark, Cinebench R23, tells the same story. The E-2314 reaches 6609 in multi-core versus 6596 for the E3-1285 v4, a 0.2% advantage. In single-core R23, the E-2314 scores 933 against 931, also a 0.2% gap. Across all six head-to-head tests, the E-2314 wins six and the E3-1285 v4 wins zero. However, the largest delta is just 0.3%, which means these processors are effectively indistinguishable in raw Cinebench throughput.

What explains such parity despite the generational gap? The E3-1285 v4 compensates for its older architecture with a higher base clock and double the threads. The E-2314 counters with a much higher boost clock. The result is that neither chip can pull away. The average benchmark score reinforces this: 1911 for the E-2314 versus 1908 for the E3-1285 v4, a 0.2% difference that also appears in their nearestRivals data, where the E-2314 lists the E3-1285 v4 at a deltaPct of 0.2, and the E3-1285 v4 lists the E-2314 at -0.2.

Architecture Differences

The two CPUs come from different architectural eras. The E-2314 uses the Rocket Lake architecture, specifically the Rocket Lake-E codename, built on a 14 nm process with a die size of 276 mm². The E3-1285 v4 uses Broadwell, with the Broadwell-DT codename, also on a 14 nm node but with a smaller die at 182 mm². Both are manufactured by Intel, and both are locked (multiplierUnlocked is false for each).

Core and thread counts differ significantly. The E-2314 has 4 cores and 4 threads, meaning no Hyper-Threading. The E3-1285 v4 also has 4 cores but 8 threads, doubling the thread count. That thread advantage helps the older chip keep pace in multi-threaded tests despite its lower boost clock. The E-2314 compensates with a base clock of 2.80 GHz and a boost clock of 4.50 GHz, while the E3-1285 v4 runs at a base of 3.50 GHz and boosts to only 3.80 GHz. The E-2314’s 0.70 GHz higher boost clock is a decisive factor in single-threaded workloads.

Cache hierarchies also differ. The E-2314 has 80 KB of L1 per core, 512 KB of L2 per core, and 8 MB of shared L3. The E3-1285 v4 has smaller caches: 64 KB L1 per core, 256 KB L2 per core, and 6 MB of shared L3. The E-2314’s larger caches, especially the 2 MB extra L3, likely contribute to its slight edge in the multi-core tests. Memory support is another divider: the E-2314 uses DDR4 with a dual-channel bus and a bandwidth of 51.2 GB/s, while the E3-1285 v4 uses DDR3 with dual-channel and 29.9 GB/s bandwidth. That is a 21.3 GB/s difference in theoretical memory bandwidth.

PCIe capabilities differ as well. The E-2314 provides Gen 4 with 20 lanes (CPU only), while the E3-1285 v4 provides Gen 3 with 16 lanes (CPU only). The E-2314 also lacks integrated graphics, whereas the E3-1285 v4 includes Intel Iris Pro P6300. Both support ECC memory, making them suitable for server workloads. The sockets are incompatible: the E-2314 uses Intel Socket 1200, and the E3-1285 v4 uses Intel Socket 1150.

Where Each One Wins

Based on the benchmark data, the E-2314 wins every measured test, but the margins are so small that the practical wins depend on context. The E-2314’s largest advantage comes in Cinebench R15 multi-core, where it leads by 0.3%. That test also shows the widest gap between the two chips. For single-threaded workloads, the E-2314 ties or leads by 0.2%, with the R15 and R20 single-core tests being exact ties. The boost clock advantage of 4.50 GHz versus 3.80 GHz does not translate into a dominant single-core lead in these benchmarks, suggesting that the E3-1285 v4’s higher base clock (3.50 GHz vs 2.80 GHz) partially offsets the E-2314’s boost advantage.

The E3-1285 v4’s only conceptual win comes from its thread count. With 8 threads versus 4, it should excel in highly parallel tasks that the Cinebench suite does not fully expose. However, in the six tests present, that thread advantage yields no wins. The E-2314 wins by 0.2% in R20 and R23 multi-core, indicating that its architectural improvements and memory bandwidth overcome the thread deficit. For workloads that rely on DDR3 memory or require integrated graphics, the E3-1285 v4 has a functional edge, it supports DDR3 and includes Intel Iris Pro P6300, while the E-2314 requires a discrete GPU and DDR4.

Specification Differences

The two processors differ in several key specification fields. The E-2314 has 4 threads, while the E3-1285 v4 has 8 threads. Base clocks are 2.80 GHz versus 3.50 GHz, and boost clocks are 4.50 GHz versus 3.80 GHz. Thermal design power is 65 W for the E-2314 and 95 W for the E3-1285 v4, a 30 W difference in favor of the newer chip. Sockets are Intel Socket 1200 versus Intel Socket 1150. Architecture names are Rocket Lake versus Broadwell, with codenames Rocket Lake-E and Broadwell-DT.

Cache sizes differ: L1 is 80 KB per core versus 64 KB per core, L2 is 512 KB per core versus 256 KB per core, and L3 is 8 MB shared versus 6 MB shared. Memory support is DDR4 versus DDR3, with bandwidths of 51.2 GB/s versus 29.9 GB/s. PCIe generation and lanes are Gen 4 with 20 lanes versus Gen 3 with 16 lanes. The E-2314 has no integrated graphics; the E3-1285 v4 has Intel Iris Pro P6300. Die sizes are 276 mm² versus 182 mm². Release dates are 2021-09-07 for the E-2314 and 2015-06-01 for the E3-1285 v4. Production status is Active versus End-of-life. The launch MSRP for the E-2314 is $182; the launch MSRP for the E3-1285 v4 is $556. Part numbers are SRKN8 and SR2CX.

FAQ

Q: Which CPU has a higher boost clock?

A: The Intel Xeon E-2314 has a boost clock of 4.50 GHz, compared to 3.80 GHz for the Intel Xeon E3-1285 v4.

Q: How many threads does each processor support?

A: The E-2314 supports 4 threads, while the E3-1285 v4 supports 8 threads, double the count.

Q: Do both CPUs support ECC memory?

A: Yes, both the E-2314 and the E3-1285 v4 have ECC memory support.

Q: What is the difference in Cinebench R23 multi-core scores?

A: The E-2314 scores 6609, and the E3-1285 v4 scores 6596, giving the E-2314 a 0.2% lead.

Q: Which processor includes integrated graphics?

A: Only the E3-1285 v4 includes integrated graphics, with Intel Iris Pro P6300. The E-2314 has no integrated graphics.

Q: What memory types do the two CPUs support?

A: The E-2314 supports DDR4, while the E3-1285 v4 supports DDR3. Both use a dual-channel memory bus.

The Verdict

The benchmark data is unambiguous: the Intel Xeon E-2314 wins all six head-to-head tests, but the margins are minimal, never exceeding 0.3%. For a user choosing between these two, the decision should rest on platform requirements rather than performance, since the scores are nearly identical. The E-2314 is the better pick for anyone building on a modern platform, as it supports DDR4 with 51.2 GB/s bandwidth, PCIe Gen 4 with 20 lanes, and has a lower TDP of 65 W. It is also an active product with a launch MSRP of $182.

The E3-1285 v4, despite being end-of-life and having a higher launch MSRP of $556, offers two advantages: 8 threads and integrated graphics. For workloads that exploit more than 4 threads, the E3-1285 v4’s thread count provides theoretical headroom, though the Cinebench results show no benefit in these specific tests. Its integrated graphics could be useful in headless or low-profile server setups where a discrete GPU is undesirable. However, its DDR3 memory support, lower bandwidth (29.9 GB/s), and older PCIe Gen 3 interface limit its relevance for new builds. If the data alone drives the choice, the E-2314 is the winner, but only by a razor-thin margin that will be invisible in real-world use.