Intel Xeon X3460

The Intel Xeon X3460 is a 4-core, 8-thread server/workstation processor built on the Nehalem architecture (codenamed Lynnfield) and fabricated on Intel's 45 nm process. It operates at a base clock of 2.80 GHz and boosts to 3.47 GHz, with a 95 W TDP. Released on September 7, 2009, this part has long since reached end-of-life status, but its benchmark results remain in the database for historical comparison. With an average benchmark score of 869 and a 22nd percentile ranking across all CPUs, the X3460 sits in the lower half of modern processors, yet its specific strengths and limitations are worth examining for legacy workloads.

Who Should Consider It

The X3460 is a classic multi-threaded workhorse for its era, but its performance profile is narrow. The Cinebench R23 multi-core score of 2526 and single-core score of 356 indicate that it can handle parallel workloads reasonably well for a 4-core/8-thread part, but it struggles in single-threaded tasks. The R20 multi-core score of 1060 versus a single-core score of 149 reinforces this split. Consequently, this CPU is best suited for applications that can exploit all eight threads—such as older video rendering, batch processing, or multi-threaded scientific simulations—where the 8 MB shared L3 cache and dual-channel DDR3 memory at 21.3 GB/s provide adequate data flow. For modern office productivity or web browsing, the low single-thread performance (22nd percentile overall) will feel sluggish, especially compared to even low-end contemporary parts. Gamers should look elsewhere; the X3460's single-core capability is far below what modern game engines require. However, for a hobbyist building a retro workstation or a budget home server that runs a specific multi-threaded workload, the X3460's 4 cores and 8 threads, combined with ECC memory support, could still be viable—provided the software is not latency-sensitive.

Platform and Compatibility

The X3460 uses the Intel Socket 1156, a platform shared with other Lynnfield-based processors. It supports dual-channel DDR3 memory with ECC capability, a feature that distinguishes it from consumer counterparts. The memory bandwidth is rated at 21.3 GB/s, which is modest by modern standards but appropriate for its generation. The CPU provides 16 PCIe Gen 2 lanes (CPU only), meaning discrete GPUs or expansion cards must share these lanes. There is no integrated graphics, so a dedicated GPU is mandatory. As a server/workstation part, it was designed for single-socket motherboards with ECC support, and the 45 nm process with 774 million transistors on a 296 mm² die reflects the manufacturing limits of the time. The platform's upgrade path is effectively nonexistent today—Socket 1156 is obsolete, and the X3460 is end-of-life. Any system built around this CPU would rely on legacy motherboards and DDR3 memory, which are increasingly scarce. For those seeking a modern replacement, the X3460 offers no future-proofing; its value lies solely in running existing software that cannot be easily migrated.

Benchmark Performance

The X3460's average benchmark score of 869 places it in the 22nd percentile of all CPUs in the database, meaning it outperforms only about a fifth of the tracked processors. This is a low standing, but the nearest rivals reveal a tight cluster. The Intel Core i7-3540M, a mobile dual-core with hyper-threading, matches the X3460 exactly at 869 (0% delta). The Intel Core i7-930, a desktop quad-core from the same Nehalem generation, scores 871, putting the X3460 0.3% behind. Similarly, the AMD Athlon PRO 3045B scores 872, again 0.3% ahead. The Intel Core i5-3470T, a low-power dual-core, scores 865, with the X3460 0.5% ahead. These deltas are within noise, indicating that the X3460 performs on par with a 2012 mobile i7 and a low-end desktop i5, despite having more physical cores. In Cinebench R23, the multi-core score of 2526 is respectable for a 4-core/8-thread part, but the single-core score of 356 is the bottleneck. The R20 results (multi 1060, single 149) show a similar pattern. The R15 multi-core score of 254 is consistent. Overall, the benchmark data suggests that the X3460's multi-threaded performance is its saving grace, but it cannot compensate for the weak single-core throughput that dominates most everyday tasks.

FAQ

Q: Does the Intel Xeon X3460 support ECC memory?

A: Yes, the X3460 supports ECC memory, as indicated in its specifications.

Q: What is the TDP of the X3460?

A: The TDP is 95 W, which is typical for a quad-core processor of its generation.

Q: How many cores and threads does it have?

A: It has 4 physical cores and 8 threads via Hyper-Threading.

Q: What is the launch MSRP of the X3460?

A: The launch MSRP was $316.

Q: What socket does the X3460 use?

A: It uses Intel Socket 1156.

Q: What is the process node?

A: The process node is 45 nm, with 774 million transistors on a 296 mm² die.

Power and Thermals

With a TDP of 95 W, the X3460 falls into the moderate power envelope for a quad-core CPU from 2009. This figure implies that a standard air cooler designed for mid-range desktop processors would suffice, though the lack of integrated graphics means the CPU's thermal load is solely on the die. The 45 nm process is relatively power-hungry by modern standards, but 95 W is manageable for a well-ventilated chassis. The boost clock of 3.47 GHz is only 0.67 GHz above the base clock, suggesting that the processor does not rely on aggressive turbo behavior to achieve performance. In practice, sustained multi-threaded workloads will likely hold near the base clock, while lighter single-threaded tasks may reach the boost frequency. The 8 MB shared L3 cache helps mitigate memory latency, but the dual-channel DDR3 at 21.3 GB/s is a limiting factor for bandwidth-intensive applications. Overall, the thermal and power characteristics are consistent with a server/workstation part that prioritizes stability over peak performance.

Single-Thread vs Multi-Thread Behavior

The X3460 exhibits a stark contrast between its single-thread and multi-thread capabilities. In Cinebench R20, the single-core score is 149, while the multi-core score is 1060—a ratio of approximately 7.1:1. Given that the CPU has 8 threads, this indicates near-linear scaling for the multi-threaded workload, meaning the cores and Hyper-Threading are effectively utilized. The R23 results show a similar ratio: 356 single-core versus 2526 multi-core, again around 7.1x. This consistency suggests that the X3460's architecture handles parallel tasks efficiently, with minimal contention for shared resources like the L3 cache and memory controller. However, the absolute single-thread scores are very low; the 149 in R20 is roughly a quarter of what a modern mainstream CPU would achieve. Consequently, workloads that are heavily dependent on single-thread performance—such as web rendering, office applications, or many legacy games—will feel unresponsive. The multi-thread advantage only matters when software is explicitly written to use multiple threads, and even then, the X3460's absolute throughput is modest. For a server running a dedicated multi-threaded service (e.g., a database or a compilation farm), the X3460 could still deliver acceptable results, but for interactive use, the single-thread bottleneck dominates. This behavior is typical of early Nehalem parts, where the focus was on scaling core counts rather than per-core efficiency. In summary, the X3460 is a multi-threaded specialist that falls short in single-threaded tasks, and its benchmark scores reflect that trade-off.