Intel Xeon E3-1245 v5

The Intel Xeon E3-1245 v5 is a 4-core, 8-thread Skylake-DT processor aimed at the server/workstation market. It uses a 14 nm process, fits Intel Socket 1151, and carries HD Graphics P530 integrated graphics. The base clock is 3.50 GHz and the boost clock is 3.90 GHz. It was released on October 18, 2015, and its production status is end-of-life. Across all benchmarks, its average score is 1973, placing it at the 46th percentile of all CPUs in the database.

Benchmark Performance

In Cinebench R15, the E3-1245 v5 scores 687 in multi-core and 96 in single-core. In Cinebench R20, the same chip scores 2865 multi-core and 404 single-core. In Cinebench R23, it scores 6823 multi-core and 963 single-core. These numbers form the core workload evidence for rendering and threaded computation.

The nearestRivals data places the E3-1245 v5 inside a very tight performance cluster. The Intel Core i7-10810U averages 1972, which is 0.1% lower than the Xeon's 1973. The Intel Core i5-7600K averages 1975, which is 0.1% higher. The AMD Ryzen 3 2300X averages 1968, or 0.2% lower. The AMD Ryzen 5 2600H averages 1967, or 0.3% lower. None of these gaps exceed 0.3%.

The 46th percentile among all CPUs indicates the E3-1245 v5 sits below the middle of the database, in a densely populated mid-range tier. The benchmark results therefore do not present a decisive advantage over its closest rivals; instead, they show a 4-core/8-thread part whose aggregate performance is effectively near-parity with several other CPUs.

Power and Thermals

The E3-1245 v5 is rated at an 80 W TDP. It is built on Intel's 14 nm node, with 1,750 million transistors on a 122 mm² die. This density fits a 4-core, 8-thread design into a modest power envelope.

An 80 W TDP implies that mainstream cooling is sufficient. A capable air cooler should be able to handle the processor under sustained load; the data does not suggest that exotic liquid cooling is required.

The CPU package also includes HD Graphics P530, so applications that use the integrated graphics will add to the thermal load. Even so, the 80 W rating anchors the thermal expectation: this is not a high-heat part.

Who Should Consider It

The market segment is Server/Workstation, so the intended use case is not primarily consumer desktop gaming. ECC memory support is a distinguishing feature: builds that need error-correcting memory can use DDR3 or DDR4 with ECC on this chip.

For multi-threaded creation tasks, the Cinebench R23 multi-core score of 6823 is the strongest result in the package. Video encoding, rendering, and similar workloads can use the eight threads and will be better served by that multi-core result than by the single-core result. For office productivity and lighter workflows, the single-core scores of 963 in R23, 404 in R20, and 96 in R15 are more relevant; they indicate a competent mainstream desktop performer.

Users who need a compact workstation CPU with ECC, integrated graphics, and a 4-core/8-thread layout may find the E3-1245 v5 suitable. Users chasing top-end gaming frame rates or high core counts should look elsewhere, since the benchmark data places this part at the 46th percentile and within 0.3% of several mid-range rivals.

FAQ

Q: Does the E3-1245 v5 support ECC memory?

A: Yes, ECC memory support is listed as true.

Q: What memory types are supported?

A: The CPU supports DDR3 and DDR4 on a dual-channel bus with 34.1 GB/s memory bandwidth.

Q: Does the CPU include integrated graphics?

A: Yes, the integrated graphics are HD Graphics P530.

Q: Is the processor unlocked for overclocking?

A: No; the multiplierUnlocked field is false.

Q: What socket does the E3-1245 v5 use?

A: It uses Intel Socket 1151.

Q: What is the production status?

A: End-of-life.

How It Compares

The nearest rivals in the database form a small group. Against the Intel Core i7-10810U, the E3-1245 v5 averages 1973 versus 1972, a 0.1% advantage. The practical difference is negligible.

Against the Intel Core i5-7600K, the E3-1245 v5 averages 1973 versus 1975. The deltaPct of -0.1% means the Xeon trails slightly, but again the aggregate result is effectively identical.

Against the AMD Ryzen 3 2300X, the E3-1245 v5 averages 1973 versus 1968. The +0.2% delta gives the Xeon a marginal lead, but the difference is not large enough to change workload recommendations.

Against the AMD Ryzen 5 2600H, the E3-1245 v5 averages 1973 versus 1967. The +0.3% delta is the biggest edge in the rival group, yet still less than a third of a percent. The benchmark data treats these chips as near-substitutes in aggregate terms.

Single-Thread vs Multi-Thread Behavior

In the Cinebench suite, the single-core scores are 96 in R15, 404 in R20, and 963 in R23. The multi-core scores are 687, 2865, and 6823 in the same order. The multi-core results are substantially higher, which is the expected signature of a 4-core/8-thread processor.

Workloads that can schedule across all eight threads will use the multi-core performance. Workloads that are bound to one thread will not exceed the single-core result; for those tasks, the R23 single-core score of 963 is the limiting factor.

This split matters for software selection. A renderer or a batch encoder will see a large benefit from the multi-core scores. An application with a single worker thread will behave more like the single-core scores suggest.

Platform and Compatibility

The E3-1245 v5 is an Intel Socket 1151 processor with the Skylake architecture and the Skylake-DT codename. It belongs to the Xeon E3 (Skylake-DT) generation and was released on October 18, 2015. The launch MSRP was $294.

The memory controller supports DDR3 and DDR4 on a dual-channel bus with 34.1 GB/s bandwidth. ECC memory is supported. The cache hierarchy is 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3.

PCIe support is Gen 3 with 16 lanes from the CPU only. Integrated graphics are provided by HD Graphics P530. The production status is end-of-life, so users looking at an upgrade path must rely on the Socket 1151 motherboard's compatibility list for other processors. The part number is SR2LL.