AMD Athlon II X2 265

The AMD Athlon II X2 265 is a desktop processor built on AMD’s K10 architecture with the Regor codename. It is an end-of-life part released on 2010-09-20, with part number ADX265OCK23GM. The chip has 2 cores and 2 threads, runs at a base clock of 3.30 GHz, and has no listed boost clock. It carries a 65 W TDP and is designed for AMD Socket AM3. In the benchmark database, its average score is 383, placing it at the 4th percentile of all CPUs.

Benchmark Performance

The Athlon II X2 265 produces an average benchmark score of 383. That places it at the 4th percentile of all CPUs in the database, meaning the data shows it ahead of only a small slice of the overall CPU population. The Cinebench results follow a similar pattern: the Cinebench R15 multicore score is 112, the Cinebench R20 multicore score is 467, and the Cinebench R23 multicore score is 1113. Single-core results are much lower in absolute terms, with a Cinebench R20 single-core score of 65 and a Cinebench R23 single-core score of 157.

Its nearest rivals are tightly clustered around the same average score. The Intel Pentium 3805U has an average score of 383, exactly matching the Athlon II X2 265 with a deltaPct of 0. The Intel Celeron 3205U scores 385 on average, producing a deltaPct of -0.5. The Intel Core i3-3217U scores 386 on average, with a deltaPct of -0.7. The AMD Athlon II X3 400e also scores 386 on average, with a deltaPct of -0.8. The benchmark results therefore show a group of processors separated by less than a single percentage point in average score. The Athlon II X2 265 is not an outlier among these rivals; it sits inside a narrow band of aggregate performance.

The multicore Cinebench numbers are larger than the single-core numbers in every case, which is consistent with a processor that can use both of its cores for threaded workloads. However, the absolute scores remain modest. The R23 multicore score of 1113 is a low result by database standards, and the single-core R23 score of 157 is lower still. The data indicates a processor that performs within a narrow range of other low-power dual-core parts from the same era.

Platform and Compatibility

The Athlon II X2 265 uses AMD Socket AM3. The architecture is K10, with the codename Regor, and it belongs to the Athlon II X2 generation. Manufacturing is on a 45 nm process, with 410 million transistors and a die size of 117 mm². The cache hierarchy consists of 128 KB of L1 cache and 1 MB of L2 cache; no L3 cache is listed. The processor does not have a boost clock, and the multiplier is locked, so the 3.30 GHz base clock is the only listed operating point.

Memory support includes DDR2 and DDR3 in a dual-channel configuration. ECC memory is not supported. The PCIe interface is Gen 2. The processor itself has no integrated graphics; the pack lists integrated graphics as a chipset feature available on certain motherboards rather than an on-die component. The production status is end-of-life, so the data reflects a processor that is no longer in active production.

For users with an existing Socket AM3 motherboard, compatibility depends on whether the board supports the K10 Regor generation. The dual memory support means both DDR2 and DDR3 systems can be considered, though the platform as a whole is tied to a 45 nm, PCIe Gen 2 design. The locked multiplier limits user-controlled frequency adjustments, and the absence of a boost clock means the CPU runs at a fixed base frequency under load. The end-of-life status also means this is not a forward-looking platform for new builds.

How It Compares

Intel Pentium 3805U: The Athlon II X2 265 and the Intel Pentium 3805U have identical average benchmark scores of 383, with a deltaPct of 0. This is a direct tie in the database’s aggregate performance metric. Neither part can claim an average-score advantage over the other.

Intel Celeron 3205U: The Intel Celeron 3205U has an average score of 385, slightly higher than the Athlon II X2 265’s 383. The deltaPct of -0.5 reflects that narrow edge. At this performance level, a 0.5% aggregate difference is negligible, so the two processors sit effectively side by side.

Intel Core i3-3217U: The Intel Core i3-3217U posts an average score of 386, with a deltaPct of -0.7 relative to the Athlon II X2 265. Again, the aggregate difference is under one percentage point. The benchmark data places these two CPUs in the same general performance class.

AMD Athlon II X3 400e: The AMD Athlon II X3 400e also averages 386, giving a deltaPct of -0.8. Despite the X3 in the rival’s name, the average-score gap is only 0.8%. The Athlon II X2 265 trails by a very small margin in the database’s aggregate metric.

FAQ

Q: What is the average benchmark score of the AMD Athlon II X2 265?

A: The average benchmark score is 383, and the processor sits at the 4th percentile of all CPUs in the database.

Q: What memory types does the Athlon II X2 265 support?

A: It supports DDR2 and DDR3 memory in a dual-channel configuration. ECC memory is not supported.

Q: Does the processor include integrated graphics?

A: No. Integrated graphics are listed as a feature of certain motherboards’ chipset, not as a component inside the CPU.

Q: Is the multiplier unlocked?

A: No. The multiplier is locked, the processor has no boost clock, and the base clock is 3.30 GHz.

Q: What socket does the processor use?

A: It uses AMD Socket AM3. It is built on the K10 architecture with the Regor codename on a 45 nm process.

Q: How does the Athlon II X2 265 compare to the Intel Pentium 3805U?

A: Both processors have an average benchmark score of 383, and the deltaPct is 0, so they are tied in aggregate performance.

Who Should Consider It

The data points to a narrow set of appropriate use cases. The Athlon II X2 265 is a dual-core, dual-thread desktop processor with a 3.30 GHz base clock, 1 MB of L2 cache, and no L3 cache. Its 4th percentile position means it is not designed for high-end, multi-threaded workloads.

For office work, the Cinebench R23 multicore score of 1113 and R20 multicore score of 467 indicate enough throughput for lightly threaded productivity tasks. Users with modest document, spreadsheet, or legacy application demands could find the CPU workable on an existing AM3 board. However, the low single-core scores of 65 in R20 and 157 in R23 suggest that latency-sensitive office tasks should not be pushed too hard.

For content creation, the picture is more constrained. The processor has only 2 threads, so rendering workloads that scale across many cores will not extract high throughput. The Cinebench R23 multicore score of 1113 is the highest Cinebench result in the pack, but it remains low in absolute terms. Regular 3D rendering, video encoding, or heavy compilation work is not well supported by these scores.

For gaming, the absence of on-die integrated graphics and the low single-core Cinebench scores are notable. The R23 single-core score of 157 and R20 single-core score of 65 suggest limited CPU performance for games that depend on a strong single-thread. The CPU is best suited to users who already have a compatible AM3 motherboard and whose workload expectations are close to entry-level desktop performance.

Single-Thread vs Multi-Thread Behavior

The separation between single-thread and multi-thread scores is clear in the Cinebench results. In Cinebench R20, the single-core score is 65 and the multicore score is 467. In Cinebench R23, the single-core score is 157 and the multicore score is 1113. In both cases, the multicore result is larger, which reflects the processor’s ability to use its 2 cores for threaded work.

The processor has 2 cores and 2 threads, so each core handles one thread. There are no additional logical threads beyond the physical cores. This limits how much of a workload can be parallelized. Multi-threaded applications can use both threads, but the total throughput remains bounded by the 3.30 GHz base clock and the relatively low absolute multicore scores.

Single-thread behavior is defined by the fixed 3.30 GHz clock and the absence of a boost clock. The processor cannot raise its frequency beyond the base setting, and the locked multiplier removes one avenue for user-side frequency adjustment. The Cinebench R23 single-core score of 157 and R20 single-core score of 65 indicate that workloads relying on a single thread will see the weaker side of this processor’s performance profile.

In practical terms, the data suggests a chip that behaves best when both threads are occupied, but even then it operates in the lower portion of the database. The multicore score is much larger than the single-core score in absolute terms, but the overall performance class remains low. This split makes the Athlon II X2 265 a poor fit for heavily single-threaded software, while providing only modest parallel throughput for applications that can use both threads.