AMD Athlon X4 740

Platform and Compatibility

The AMD Athlon X4 740 is a desktop processor built for the AMD Socket FM2 platform. It uses the Piledriver architecture under the Trinity codename, placing it in the first generation of Athlon processors on that socket. The chip is manufactured on a 32 nm process at GlobalFoundries, with 1,303 million transistors packed into a 246 mm² die.

Memory support is DDR3 only, operating through a dual-channel memory bus. The theoretical memory bandwidth tops out at 29.9 GB/s, which is typical for the platform's era. ECC memory is not supported, so this is strictly a consumer-oriented part. There is no integrated graphics on the die, meaning a discrete GPU is mandatory for any display output.

PCIe support is limited to Gen 2. This matters for modern expansion cards, though the practical impact depends on the GPU and storage devices used. For a system built around this CPU, a Gen 2 PCIe link is unlikely to be a bottleneck for mid-range graphics cards of the same generation, but it is worth noting for anyone planning to install a high-end current GPU.

The upgrade path on Socket FM2 is a key consideration. The Athlon X4 740 sits in the lower tier of the platform, and users can move to higher-end FM2 parts without changing the motherboard. However, the platform itself is end-of-life, so there is no forward path to newer sockets. The multiplier is locked, which means overclocking is not possible through the clock multiplier alone — you would have to adjust the base clock, which is more limited and riskier. The production status is end-of-life, so availability is limited to used or remaining new-old-stock units.

Power and Thermals

The Athlon X4 740 carries a TDP of 65 watts. This is a modest figure for a quad-core processor, and it directly influences the cooling tier required. A stock-style air cooler, the kind that ships with many OEM systems, is sufficient for this chip. Aftermarket coolers, even low-profile or slim tower designs, will handle it comfortably.

The 32 nm process node means the chip is not particularly efficient by modern standards, but the 65 W TDP keeps thermal output manageable. In a typical desktop case with reasonable airflow, cooling is not a concern. The lack of an unlocked multiplier also means there is no headroom for voltage-based overclocking that would push thermals higher. For builders, this simplifies the cooling decision: any decent air cooler will do the job, and there is no need for liquid cooling or oversized heatsinks.

Who Should Consider It

This processor is best suited for basic desktop workloads where multi-threaded performance is more important than single-thread speed. Office tasks — spreadsheets, word processing, web browsing with multiple tabs — are well within its capability. The four physical cores help with background tasks and multitasking, so it will not feel sluggish in everyday use.

For gaming, the Athlon X4 740 is a mixed proposition. The lack of integrated graphics means you must pair it with a discrete GPU, and the relatively weak single-thread performance will hold back modern games that rely heavily on per-core speed. Older titles, e-sports games, and less demanding indie games will run acceptably with a modest GPU. But for recent AAA releases, this CPU will be the limiting factor.

Content creation is not a strong suit. The four cores and four threads (no SMT) mean it will handle light photo editing and basic video encoding, but long render times are expected for anything substantial. The 4 MB of shared L2 cache helps with some workloads, but the lack of L3 cache hurts in memory-latency-sensitive tasks. This is a processor for a budget office PC or a secondary machine, not a primary workstation.

FAQ

Q: What socket does the AMD Athlon X4 740 use?

A: It uses AMD Socket FM2.

Q: Does the Athlon X4 740 have integrated graphics?

A: No, the integrated graphics field is null, so a discrete GPU is required for display output.

Q: What type of memory does this processor support?

A: It supports DDR3 memory in a dual-channel configuration, with a theoretical bandwidth of 29.9 GB/s.

Q: Is the multiplier unlocked for overclocking?

A: No, the multiplier is locked, limiting overclocking options.

Q: What is the TDP of the Athlon X4 740?

A: The TDP is 65 watts, which permits a modest air cooling solution.

Q: When was this processor released?

A: The release date is October 1, 2012, and the production status is end-of-life.

Benchmark Performance

The benchmark data for the Athlon X4 740 is limited. The average benchmark score is 0, and the nearest rivals list is empty. However, the percentile versus all CPUs is 50, which places it squarely in the middle of the overall performance distribution. This is a useful anchor: half of all CPUs in the database are slower, and half are faster. For a budget quad-core from 2012, hitting the 50th percentile indicates it was a competent mainstream part at launch, though it has since been overtaken by newer architectures.

The lack of rival data means we cannot provide exact percentage deltas against specific competing models. What we can say is that the 50th percentile ranking suggests it performed around the median for all CPUs in the database. In practical terms, this means it will handle everyday tasks without frustration but will not excel in demanding workloads. The empty nearestRivals field is a limitation of the dataset, not a commentary on the chip's performance.

For gaming, the 50th percentile ranking is a warning sign. Modern games benefit from high single-thread performance, and a CPU at the median of all CPUs — including older and lower-end parts — will struggle to maintain high frame rates. For productivity, the quad-core design helps, but the lack of SMT means it does not benefit from the extra threads that many modern applications can use.

Single-Thread vs Multi-Thread Behavior

The Athlon X4 740 has four cores and four threads, with a base clock of 3.20 GHz and a boost clock of 3.70 GHz. The absence of simultaneous multithreading (SMT) is significant. In single-threaded workloads, the 3.70 GHz boost clock provides adequate performance for older applications, but the Piledriver architecture is not known for high instructions-per-clock (IPC) efficiency. This means that even at similar clock speeds, it will trail newer architectures in per-core performance.

In multi-threaded workloads, the four physical cores are a clear advantage over dual-core parts of the same era. The shared 4 MB L2 cache helps reduce memory latency when all cores are active, but the lack of L3 cache is a notable drawback. Many competing processors had L3 caches, which improve performance in workloads that repeatedly access the same data. The 1,303 million transistors on a 246 mm² die are used primarily for the cores and L2 cache, not for a large cache hierarchy.

The split between single-thread and multi-thread behavior is straightforward: this CPU is better at multi-threaded tasks than single-threaded ones, relative to its competition. In a spreadsheet or a video render, all four cores will be utilized, and the performance will be respectable for the platform. In a game that relies on one or two heavily threaded threads, the boost clock of 3.70 GHz will help, but the architectural weaknesses will show. The 65 W TDP also suggests that thermal headroom is not a limiting factor for sustained multi-threaded loads, so the chip can maintain its boost clock without significant thermal throttling.

For a builder considering this chip today, the single-thread performance is the primary concern. The 50th percentile overall ranking is a snapshot of the past, not a prediction of future performance. Modern software has become more multi-threaded, which helps the Athlon X4 740, but it has also become more demanding in terms of IPC and cache size, which hurts it. The result is a processor that is best used for light workloads and legacy applications, not as a daily driver for demanding tasks.