Intel Xeon W3570

The Intel Xeon W3570 is a 4-core, 8-thread server/workstation processor built on the 45 nm Nehalem architecture (codename Bloomfield) for the Intel Socket 1366 platform. It runs at a base clock of 3.20 GHz and a boost clock of 3.47 GHz, with 64 KB L1 and 256 KB L2 per core plus 8 MB of shared L3 cache. Its 130 W TDP and triple-channel DDR3 support with ECC capability mark it as a workstation-oriented part, but its benchmark standing is modest: it places in the 25th percentile of all CPUs and carries an average benchmark score of 955. That score puts it in direct parity with several low-power mobile and desktop parts from later generations, as detailed below.

Who Should Consider It

The W3570 is not a part for modern gaming or high-end content creation. Its Cinebench scores tell a clear story: in Cinebench R23, it achieves 2776 points multi-core and 392 points single-core. The multi-core result is roughly 7 times the single-core figure, reflecting the limited scaling of four physical cores with eight threads. For gaming, the single-core performance of 392 points in R23 places it far below any contemporary CPU; modern titles that rely on strong per-thread performance will be severely bottlenecked. This is a chip for legacy workstation workloads that are heavily multithreaded but not latency-sensitive, such as batch rendering, scientific simulations, or server-side data processing that can utilize all eight threads. The presence of ECC memory support makes it suitable for long-running error-tolerant computing tasks, but the overall compute capacity is low by today’s standards.

Office productivity is possible but not recommended. Simple word processing, spreadsheets, and web browsing will run, but the 45 nm process and 130 W TDP mean high power draw for minimal performance. The 25th percentile ranking indicates that three-quarters of all tested CPUs outperform it. For anyone considering this part for a new build, the data suggests it is only viable if the workload is extremely thread-heavy and the user already owns compatible DDR3 memory and a Socket 1366 motherboard. For modern workloads, the nearest rivals, which are far more efficient, offer the same average score with a fraction of the power.

Power and Thermals

The W3570 has a TDP of 130 W. That is a high thermal envelope for a 4-core processor, especially one built on a 45 nm process. To keep it within safe operating limits, a capable air cooler or a basic liquid cooler is required; the stock cooler from that era may be insufficient under sustained load. The high TDP also means that system power consumption will be significant, particularly when the CPU is paired with triple-channel DDR3 memory and a workstation chipset. In a modern context, the power efficiency is poor, a comparable modern 4-core part typically draws less than half of that power while delivering several times the performance. For a server or workstation that runs 24/7, the electricity cost and cooling burden are non-trivial. The data shows no thermal throttling behavior, but the 130 W TDP class implies that the cooling solution must be able to dissipate that heat continuously. Enthusiasts should plan for a robust chassis with good airflow.

Platform and Compatibility

The W3570 uses the Intel Socket 1366, a platform that also supported Intel’s high-end desktop and server chips of the late 2000s. It supports triple-channel DDR3 memory, with ECC memory as a confirmed feature, a key requirement for error-sensitive workstation tasks. The integrated memory controller is on-die, but no memory bandwidth figure is provided; the triple-channel configuration implies high theoretical bandwidth for the era. PCIe support is Gen 2, which is adequate for older expansion cards but will bottleneck modern GPUs that expect PCIe Gen 4 or Gen 5. There is no integrated graphics, so a discrete GPU is mandatory for any display output. The production status is end-of-life, meaning no new units are being manufactured. For upgrade paths, the Socket 1366 platform offers no forward compatibility; any upgrade would require a new motherboard, memory, and CPU. The chip is not multiplier-unlocked, so overclocking is limited to bus speed adjustments, which are not covered in the benchmark data. The part number is SLBES, which can help identify the exact stepping.

How It Compares

Intel Core i3-10110Y

This mobile dual-core part from a much later generation matches the W3570 exactly on average benchmark score, both at 955, with a delta of 0%. The i3-10110Y achieves that with two cores and four threads, likely at a fraction of the power draw. The W3570’s four cores and eight threads do not translate into a higher average score, indicating that the i3-10110Y’s newer architecture and higher single-thread performance compensate for its lower core count.

Intel Pentium Silver J5040

Another equal performer, the Pentium Silver J5040 also scores 955 on average with a 0% delta. This is a low-power quad-core desktop part designed for basic tasks. The fact that a 10 W-class processor matches the 130 W Xeon W3570 underscores the W3570’s age and inefficiency. For workloads that are not heavily multithreaded, the Pentium Silver is the more practical choice.

Intel Core i5-2405S

The i5-2405S, a Sandy Bridge-era quad-core, scores 954, which is 0.1% lower than the W3570’s 955. This negligible delta means the two are effectively identical in average performance. The i5-2405S, however, has a much lower TDP and supports modern instruction sets, making it a better all-around part for daily use. The W3570’s only advantage here is ECC memory support.

AMD Athlon X4 870K

The Athlon X4 870K scores 956, which is 0.1% higher than the W3570’s 955. This is a quad-core, no-SMT part from AMD’s Steamroller architecture. The delta is within measurement noise, so the two are statistically tied. The Athlon X4 870K runs on a more modern socket (FM2+) and supports higher memory speeds, but lacks ECC. For most users, the Athlon would be easier to source and cool.

Benchmark Performance

The W3570’s Cinebench scores are its most concrete performance indicators. In Cinebench R23, it scores 2776 multi-core and 392 single-core. The multi-core result is about 7.08 times the single-core score, which is close to the theoretical scaling of 8 threads on 4 cores, though real-world scaling is typically lower due to memory bandwidth and cache contention. In Cinebench R20, the multi-core score is 1165 and single-core is 164, giving a ratio of 7.1. The R15 multi-core score is 279. These numbers place the CPU in the lower quartile of all tested parts (25th percentile). The average benchmark score of 955 is exactly equal to that of the Core i3-10110Y and Pentium Silver J5040, and within 0.1% of the Core i5-2405S and AMD Athlon X4 870K. This means that despite its workstation heritage and ECC support, the W3570 delivers no more average performance than these far more efficient parts. The delta percentages from the nearest rivals are all within ±0.1%, indicating that the W3570 is effectively a performance dead-end. The data does not include any gaming or memory latency benchmarks, so the analysis is limited to compute-centric workloads. For multithreaded tasks that can use all eight threads, the W3570 may outperform the dual-core i3-10110Y, but the average score suggests that the i3’s higher single-thread performance balances the scales. In practice, the W3570’s age shows in single-thread tests: a modern low-end chip like the i3-10110Y likely beats it by a large margin in single-core, but the average score masks that because the multi-core score is dragged down by the older architecture.

FAQ

Q: Does the Intel Xeon W3570 support ECC memory?

A: Yes, ECC memory support is listed as a feature, making it suitable for error-sensitive workstation or server tasks.

Q: What socket does the W3570 use?

A: It uses Intel Socket 1366, a platform from the late 2000s that also supported other high-end desktop and server processors.

Q: How many cores and threads does it have?

A: It has 4 cores and 8 threads, with a base clock of 3.20 GHz and a boost clock of 3.47 GHz.

Q: What is its performance percentile?

A: It ranks in the 25th percentile of all CPUs tested, meaning it outperforms 25% of the database.

Q: Does it have integrated graphics?

A: No, there is no integrated graphics, so a discrete GPU is required for display output.

Q: Is the W3570 still in production?

A: No, its production status is end-of-life, and it was released in 2009 (though the year is not discussed here).