AMD Athlon 64 FX-76

The AMD Athlon 64 FX-76 is a 2-core, 2-thread desktop processor from the K8 Windsor generation, built on a 90 nm process. It runs at a fixed 3.20 GHz base clock with no boost clock listed, fits AMD Socket F, and carries a 125 W TDP. The part number ADAFX76GAA6DI identifies the SKU. The dataset marks it as end-of-life and desktop-class, but the benchmark array is empty, the average benchmark score is 0, and the nearest-rival list is also empty. The only ranking signal available is percentileVsAllCpus: 50, which places this chip exactly at the midpoint of the CPUs tracked in this database.

Who Should Consider It

The Athlon 64 FX-76 maps most directly to workloads that stay within two simultaneous threads. It provides exactly 2 cores and 2 threads, so the operating system can schedule only two logical processors at a time. Applications built around one or two active threads can take advantage of the relatively high 3.20 GHz base clock without needing any additional logical cores. The cache hierarchy includes 128 KB of L1 and 1 MB of L2, with no L3 cache, so workloads that fit within that L2 footprint are the most natural fit.

For office-style use, the 2-core/2-thread structure is enough for lightly threaded tasks such as document editing, spreadsheet work, and email. The dual-channel DDR2 memory path, rated at 10.7 GB/s, gives the cores a shared connection to memory. As long as the work does not spawn many background threads, the FX-76 can hold its own in that setting. The 50th-percentile rank suggests it is neither a standout nor a bottom-tier part within the full database distribution.

For gaming, the picture is more constrained. Games that expect more than two threads will see a hard ceiling because there are no extra threads beyond the two cores. The processor has no integrated graphics, so a discrete graphics adapter is mandatory for any display output. With a 50th-percentile position among all CPUs, the FX-76 is not positioned as a top performer in the database. Yet for older or lightly threaded game engines, the 3.20 GHz clock can still be relevant, because single-threaded speed is often more important than core count in that scenario.

For content creation, the recommendation is much more cautious. Heavy rendering, video encoding, and other parallel creation tasks scale beyond two threads, and the FX-76 simply cannot provide more than two logical processors. The same 50th-percentile rank that looks moderate in a mixed workload becomes a liability in a multi-threaded creation pipeline. The data does not contain any creation-specific scores, but the core/thread count alone is a structural limit that no clock speed can fully bypass.

Power and Thermals

The TDP is listed as 125 W. For a dual-core processor, that is a substantial thermal envelope. The physical factors behind this number include the 90 nm process node, 227 million transistors, and a die size of 235 mm². Those figures describe a relatively large die for a 2-core part, and the thermal design reflects that reality.

Because no boost clock is listed, the operating frequency ceiling is the same as the base clock: 3.20 GHz. A cooling solution appropriate for the 125 W TDP class is required to sustain that frequency under load. There is no integrated graphics die to contribute heat; the thermal load comes from the CPU package alone. The unlocked multiplier means the platform firmware can adjust the clock ratio, but the stock TDP rating is defined around the 3.20 GHz state. Any adjustment would operate outside the documented 125 W envelope, although the exact resulting power would depend on the motherboard, voltage, and workload.

Benchmark Performance

The benchmark dataset for this processor is empty. There are no entries in the benchmarks array, and the average benchmark score is 0. That zero should not be read as a measured performance result; rather, it is a sign that no score is stored for this CPU. The nearest-rival list is also empty, so there are no rival names, no rival scores, and no deltaPct values to cite. In other words, the data cannot support any percentage comparison between the FX-76 and a specific competing processor.

The only benchmark-adjacent figure is percentileVsAllCpus: 50. This is a positional statement: the FX-76 sits exactly in the middle of the database's CPU distribution. Half of all tracked CPUs are above it, and half are below it. That is a broad aggregate ranking, not a workload-specific speed score. Because there are no sub-scores for single-thread performance, multi-thread performance, or memory performance, the percentile is the only available clue to overall placement.

What the data implies is a kind of performance silhouette: moderate in the full-CPU ranking, but without any detail to say which workloads are strong and which are weak. In the absence of rival deltas, the safest interpretation is that the FX-76 is a midpoint chip in the general database, with its specific behavior left undefined until benchmark entries are added.

FAQ

Q: How many cores and threads does the Athlon 64 FX-76 have?

A: It has 2 cores and 2 threads. The thread count equals the core count, so the processor supports only two simultaneous software threads.

Q: What kind of memory does it support?

A: It supports DDR2 memory in a dual-channel configuration, with a memory bandwidth of 10.7 GB/s. ECC memory is not supported.

Q: Does the processor include an integrated GPU?

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

Q: Is the multiplier unlocked?

A: Yes. The multiplier unlocked field is true, which allows the clock multiplier to be changed on a compatible platform.

Q: What socket does it use?

A: It uses AMD Socket F. The architecture is K8 and the codename is Windsor.

Q: Is the processor still in production?

A: No. The production status is listed as end-of-life, and the market segment is desktop.

Single-Thread vs Multi-Thread Behavior

The FX-76 has exactly one thread per core. In a single-threaded workload, one core is all that is required, and it can run at the full 3.20 GHz base clock. Since no boost clock is listed, there is no higher frequency available above that figure. Single-thread performance is therefore a product of the K8 core design, the 3.20 GHz clock, and the cache layout of 128 KB L1 and 1 MB L2.

In multi-threaded workloads, only two threads can execute at once. There is no additional logical threading to create a bridge between two physical cores and more software threads. The operating system will enumerate only two logical processors. Any parallel application that expects four, six, or eight threads will be forced to queue remaining work, and that queueing is a direct consequence of the 2-core/2-thread structure.

The 50th-percentile rank likely reflects this split. On lightly threaded tasks, the high clock can keep the FX-76 respectable. On heavily threaded tasks, the core and thread count becomes the limiting factor. The dual-channel DDR2 memory bus at 10.7 GB/s serves both cores, but it is a shared resource; a single thread can use a large fraction of the bus, while two active threads must split the available bandwidth. The absence of an L3 cache also means that misses beyond the 1 MB L2 must go to system memory, which makes memory bandwidth and latency more important than it would be for a processor with a larger cache hierarchy.

Platform and Compatibility

The FX-76 belongs to AMD Socket F. The architecture is K8, codename Windsor, produced on a 90 nm process. The die contains 227 million transistors on a 235 mm² area. These are the core physical identifiers of the processor in the fact pack.

Memory support is DDR2, arranged in dual-channel mode, with a rated memory bandwidth of 10.7 GB/s. ECC memory is not supported, which reinforces the desktop positioning of this part. The fact pack does not list any PCIe capabilities, so expansion-slot compatibility cannot be established from this data. This is a meaningful gap because the processor has no integrated graphics; a discrete adapter is necessary, and the available bus for that adapter would need to be verified on the specific motherboard.

There is no integrated graphics block in the data, so the FX-76 is not a complete platform by itself. The multiplier is unlocked, giving owners the ability to adjust the clock multiplier on compatible Socket F boards. Production status is end-of-life, and the market segment is desktop. The upgrade path is therefore tied to the existing Socket F ecosystem, and the processor is not positioned as a forward-looking platform choice. The part number ADAFX76GAA6DI is the exact identifier associated with this desktop SKU.

How It Compares

The nearestRivals field is empty. No rival names, no rival scores, and no deltaPct values are present in the fact pack. As a result, the FX-76 cannot be positioned against any specific competing processor in this database entry. There is no exact percentage to report, and no comparison paragraph can be written with the data provided.

The only comparative signal is percentileVsAllCpus: 50. That places the FX-76 at the midpoint of all CPUs in the database. It is a general statement of central position, not a rival-specific claim. Without nearest-rival entries, the database has not computed a competitive neighborhood for this part. Any assertion like “X% faster than model Y” or “slower than model Z” would require data that the fact pack does not contain. The FX-76 remains, for now, a processor known by its specifications and its middle-of-the-pack rank, not by measured deltas against named competitors.