AMD Athlon 64 X2 4400+

AMD Athlon 64 X2 4400+ is a dual-core desktop processor from AMD’s K8 architecture, built on a 90 nm process and released on May 30, 2005. It operates at a base clock of 2.20 GHz with 1 MB of L2 cache per core, and the benchmark percentile data places it at the 50th percentile among all CPUs, indicating median performance within the broader historical database.

Benchmark Performance

The AMD Athlon 64 X2 4400+ holds a percentile rank of 50 among all CPUs tracked in this database, meaning half of all processors score higher and half score lower. This places it squarely in the middle of the performance distribution, a notable position for a dual-core chip from the K8 generation.

The average benchmark score for this processor is recorded as 0, which reflects the absence of standardized benchmark runs in the current dataset rather than a literal absence of performance. Because no nearestRivals entries are provided, the deltaPct comparisons typically used to contextualize scores are unavailable. The data therefore indicates that the 4400+ is a baseline reference point for dual-core K8 performance, with its 2.20 GHz clock and 1 MB per-core L2 cache defining its computational ceiling.

In the absence of direct rival scores, the 50th percentile is the key interpretative anchor. A 50th percentile rank suggests that this processor is neither a high-end part nor an entry-level one; it sits at the midpoint of the historical CPU landscape. For applications that scale with dual-core execution, the 4400+ would likely deliver consistent, if unremarkable, throughput. The 90 nm process and 233 million transistor count indicate that this is a mature design, with the 199 mm² die size reflecting the manufacturing capabilities of its era.

How It Compares

The nearestRivals field is empty in the FACT PACK, so no direct competitor names, scores, or deltaPct values are available for comparison. Consequently, this analysis cannot position the 4400+ against specific alternative processors using quantitative deltas. The data shows that the processor’s 50th percentile rank is its only comparative metric, and without rival entries, the benchmark results indicate that the 4400+ serves as a standalone data point rather than a node in a competitive cluster.

The absence of rival data means that statements about relative performance margins—such as “X% ahead of Y”—cannot be made. What is verifiable from the FACT PACK is that the 4400+ is a dual-core, dual-thread processor with a 2.20 GHz base clock, and its 50th percentile position implies that it matches the median performance of all CPUs in the database. The K8 architecture and Toledo codename further situate this part within AMD’s early 2000s dual-core lineup, but without rival scores, the comparison section must rely on the percentile field alone.

For users considering this processor in a modern context, the 50th percentile rank is a clear signal: it is not a high-performance part by current standards, but it is also not a bottom-tier chip. The 110 W TDP and Socket 939 compatibility define its platform requirements, and the lack of a boost clock means that 2.20 GHz is the maximum sustained frequency. The data does not support any claim of superiority or inferiority to specific rivals, only that the 4400+ occupies the exact median of the CPU performance distribution.

Power and Thermals

The AMD Athlon 64 X2 4400+ carries a thermal design power (TDP) of 110 W. This TDP class is typical for a dual-core desktop processor from the mid-2000s, and it implies a cooling requirement that is moderate by modern standards but substantial for its time. A 110 W TDP indicates that the processor dissipates a significant amount of heat under load, necessitating a cooling solution that can handle sustained thermal output.

Given the 110 W TDP, the implied cooling tier is a capable air cooler with a copper base and heat pipes, or a robust aluminum fin stack with a high-static-pressure fan. The data does not specify cooler dimensions or wattage ratings, so the recommendation is qualitative: users should pair this processor with a cooler designed for CPUs in the 110 W class. The 90 nm process node and 233 million transistors contribute to the thermal profile, with the 199 mm² die size spreading heat across a relatively large surface area.

The lack of a boost clock means that the processor does not dynamically increase its frequency under favorable thermal conditions, so the 110 W TDP represents a steady-state power draw during heavy multi-threaded workloads. Socket 939 platforms from this era typically included passive chipset cooling and case airflow considerations, but the data does not provide those details. The ECC memory support is listed as false, which has no direct impact on thermals but is a relevant platform constraint.

FAQ

Q: What is the base clock speed of the AMD Athlon 64 X2 4400+?

A: The base clock is 2.20 GHz, and the processor does not have a boost clock, so this is also the maximum frequency.

Q: How many cores and threads does the 4400+ have?

A: It has 2 cores and 2 threads, meaning each core handles a single thread without hyper-threading support.

Q: What socket does this processor use?

A: The AMD Athlon 64 X2 4400+ uses the AMD Socket 939 interface.

Q: What is the TDP of this processor?

A: The thermal design power is 110 W, which requires a cooling solution rated for that heat output class.

Q: What cache configuration does the 4400+ have?

A: It features 128 KB of L1 cache per core and 1 MB of L2 cache per core, with no L3 cache present.

Q: What memory type does this processor support?

A: The 4400+ supports DDR1 memory in a dual-channel configuration, with a memory bandwidth of 6400 MB/s.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, so the base clock of 2.20 GHz is fixed unless the front-side bus is adjusted on the motherboard.

Single-Thread vs Multi-Thread Behavior

The AMD Athlon 64 X2 4400+ has 2 cores and 2 threads, which means it can execute exactly two concurrent threads. For single-threaded workloads, the processor relies on its 2.20 GHz base clock and 1 MB per-core L2 cache to deliver performance. The 50th percentile rank suggests that this single-thread performance is median, not standout, which is consistent with a mid-2000s dual-core part that prioritized multi-threading over raw clock speed.

For multi-threaded workloads, the 4400+ can leverage both cores, potentially doubling throughput compared to a single-core processor at the same frequency. The 2 MB total L2 cache (1 MB per core) helps keep frequently accessed data local to each core, reducing memory latency. The dual-channel DDR1 memory bus with 6400 MB/s bandwidth provides the data feed for both cores, and this bandwidth is a limiting factor for multi-threaded scaling—if both cores request data simultaneously, the memory subsystem must split the available bandwidth.

The behavior split is thus: single-thread performance is defined by the 2.20 GHz clock and K8 architecture, while multi-thread performance is defined by the dual-core design and 6400 MB/s memory bandwidth. The 110 W TDP indicates that both cores can run at full load simultaneously, but the lack of a boost clock means there is no temporary single-core frequency increase for latency-sensitive tasks. In practice, applications that are single-threaded will see median performance, while multi-threaded applications will see scaling up to 2x, subject to memory bandwidth constraints. The 50th percentile rank applies to the overall score, which blends both behaviors, but the data does not provide separate single-thread and multi-thread scores.