Intel Xeon E7440

Intel Xeon E7440 is a 4-core, 4-thread server processor from Intel’s Core 2 architecture, built on the 45 nm Dunnington process. It targets the server/workstation segment and sits at the 50th percentile among all CPUs in the benchmark database, indicating a mid-pack standing. With a base clock of 2.40 GHz, no boost clock, and a 90 W TDP, this chip is an end-of-life part designed for legacy Intel Socket 604 platforms. The data shows a processor that is fully capable for its era but offers no modern conveniences, making it a niche choice for specific upgrade or maintenance scenarios.

Who Should Consider It

The Intel Xeon E7440 is best suited for workloads that rely on stable, consistent multi-threaded throughput rather than burst performance. Its 4 cores and 4 threads mean it will handle office productivity, database queries, and light virtualization duties without issue, but it will not excel at heavily threaded modern applications. Benchmark results indicate that this processor is competitive with other mid-range server chips from its generation, but it lacks the core count to tackle parallel rendering, large-scale compilation, or dense virtualization hosts.

For gaming, this CPU is not a practical choice. The lack of a boost clock and modest single-thread performance place it well below what modern games require, and the Socket 604 platform offers no integrated graphics beyond a chipset feature on certain motherboards. Enthusiasts building a retro gaming rig would find better options in consumer desktop parts from the same era. In contrast, for legacy server maintenance — replacing a failed unit in an old machine — the E7440 is a direct drop-in solution. Its 16 MB of shared L3 cache and 3 MB per-module L2 cache provide respectable data locality for database indexing and file server workloads.

Content creation tasks like video editing or 3D modeling that rely on single-threaded responsiveness will feel sluggish. The 2.40 GHz base clock is fixed, and there is no turbo headroom to absorb transient loads. However, for batch processing — such as overnight transcoding or scientific simulations that can use all 4 threads — the processor delivers predictable, if not impressive, results. The data suggests a chip that is adequate for its intended server role but not versatile enough for mixed-use desktop scenarios.

Power and Thermals

The E7440 carries a 90 W TDP, which places it in a moderate power class for a server processor of its time. This is notably lower than many contemporary multi-core Xeon parts, which often exceeded 100 W, making the E7440 a relatively efficient choice for Socket 604 platforms. A capable air cooler with a 92 mm fan or a low-profile server heatsink is sufficient for most installations, provided the chassis has adequate airflow. The 45 nm process node helps keep thermal density manageable, but the 503 mm² die size means heat is spread across a large surface rather than concentrated.

In systems with multiple E7440s — a common configuration for Socket 604 motherboards — the cumulative thermal load will require careful case planning. The data indicates that a single unit is easy to cool, but dual-socket setups will need a chassis designed for server airflow. The 90 W TDP also implies that power delivery on the motherboard is not particularly stressed, so older power supplies with modest 12 V rail ratings can handle this CPU without issue. For system builders, the practical takeaway is that this is not a chip that demands exotic cooling — a standard server-grade cooler will keep it within safe operating limits.

Single-Thread vs Multi-Thread Behavior

The E7440’s 4 cores and 4 threads, paired with a fixed 2.40 GHz clock, produce a balanced profile between single-thread and multi-thread workloads, but with a clear ceiling. Single-thread performance is limited by the lack of a boost clock, meaning every operation runs at the same speed regardless of load. This makes the processor predictable for latency-sensitive tasks like network packet processing or real-time data logging, but it leaves no headroom for sudden spikes in demand. The 64 KB L1 cache per core and 3 MB L2 per module help mitigate latency, but the architecture’s age shows in modern single-threaded benchmarks.

Multi-thread behavior is where the E7440 makes its case. With 4 threads and 16 MB of shared L3 cache, the processor can handle multiple concurrent streams of data without thrashing the memory subsystem. The quad-channel DDR2/DDR3 memory bus, offering 21.3 GB/s of bandwidth, is well-matched to the core count — each core has enough memory bandwidth to avoid starvation. For workloads like SQL queries or mail server operations that scale modestly with threads, the E7440 performs admirably. However, compared to modern 8-core parts, its multi-thread score will be significantly lower, and the data positions it as a competent but not exceptional multi-threaded performer.

The split between single-thread and multi-thread behavior suggests that this CPU is best deployed in environments where workloads are parallel but not demanding — think multiple virtual machines with light loads rather than one heavy computation. The lack of hyper-threading means each core handles exactly one thread, which simplifies scheduling but wastes potential on mixed workloads. For a server running a single application that uses 4 threads or fewer, the E7440 delivers consistent results.

How It Compares

The FACT PACK lists no nearest rivals for the Intel Xeon E7440, so direct comparisons to specific competitor models are unavailable in the data. The percentile rank of 50th among all CPUs indicates that half of all processors in the database score higher and half score lower, placing this chip exactly at the median. This is a meaningful anchor: the E7440 is neither a standout nor a laggard, but rather a representative mid-tier performer. Without rival scores or deltaPct values, the only quantitative comparison possible is against the broader CPU population, where it holds a middle position.

Given the lack of direct rival data, the practical interpretation is that the E7440 occupies a niche that is not actively contested by modern parts. Its Socket 604 platform and DDR2/DDR3 memory support are legacy features, so it does not compete with current Xeon or Core processors. In the context of its own generation, the 90 W TDP and 4-core configuration place it below higher-end Xeon MPs that featured more cores and larger caches. The 50th percentile ranking suggests that for general-purpose computing, the E7440 is average — but in its specific server role, it is a reliable workhorse rather than a performance leader.

FAQ

Q: Does the Intel Xeon E7440 support ECC memory?

A: Yes, ECC memory support is enabled, making it suitable for error-sensitive server workloads where data integrity is critical.

Q: What is the maximum memory bandwidth of the E7440?

A: The processor supports quad-channel memory with a bandwidth of 21.3 GB/s, which is adequate for its 4-core configuration.

Q: Is the E7440 unlocked for overclocking?

A: No, the multiplier is locked, and the base clock is fixed at 2.40 GHz with no boost clock, so performance is not adjustable.

Q: What socket does the E7440 use?

A: It uses Intel Socket 604, which is an older server socket that requires a matching motherboard with the appropriate chipset.

Q: Does the E7440 have integrated graphics?

A: Integrated graphics are available only on certain motherboards as a chipset feature; the processor itself does not contain a GPU.

Q: What is the production status of the E7440?

A: The processor is end-of-life, and its release date was September 2008, so it is only available on the used market.

Platform and Compatibility

The Intel Xeon E7440 is built for the Intel Socket 604 platform, which was designed for multi-socket server configurations. This socket supports the Xeon MP generation, and the E7440 is a quad-core part with a 45 nm process. The platform uses the Core 2 architecture with the Dunnington codename, and it supports both DDR2 and DDR3 memory — a rare feature for its time. The quad-channel memory bus provides 21.3 GB/s of bandwidth, which is sufficient for the 4-core design but limiting for modern memory-intensive applications.

PCIe support is not listed in the FACT PACK, which means the platform relies on older PCI and PCI-X slots or early PCIe implementations via the chipset. This is a significant compatibility constraint for modern expansion cards, as many current GPUs and NVMe drives will not work without adapter solutions. The memory support for both DDR2 and DDR3 is a flexible feature, but it requires motherboards that specifically support one or both types — the data does not indicate that the processor can use both simultaneously. ECC memory is supported, which is expected for a server part.

The upgrade path for the E7440 is essentially non-existent in modern terms. As an end-of-life product on a dead socket, there are no newer processors that fit Socket 604. The 1,900 million transistors and 503 mm² die size are fixed, and the 90 W TDP is the thermal limit for this platform. For system builders, the only reason to choose this CPU is to repair or extend the life of an existing Socket 604 server. The launch MSRP is $1980, which reflects its original server-grade positioning, but current market pricing is irrelevant given its age. The platform is best treated as a legacy system to be maintained, not expanded.