AMD A8-7670K

The AMD A8-7670K is a 4-core, 4-thread desktop processor built on the 28 nm Steamroller architecture (Godaveri). It sits in the low-to-mid range of the performance spectrum, holding the 24th percentile among all CPUs. Its average benchmark score of 944 places it in a dead heat with a cluster of older and entry-level rivals, with performance deltas of less than 1% in either direction. This is a processor defined by parity, not superiority, making its value entirely dependent on platform cost and integrated graphics rather than raw compute leadership.

Who Should Consider It

The A8-7670K is a fit for users building a legacy FM2+ system where the integrated Radeon R7 graphics eliminate the need for a discrete GPU. For basic office productivity—document editing, spreadsheet work, and web browsing—the quad-core design provides sufficient responsiveness, as indicated by its single-core Cinebench R23 score of 387, which is adequate for lightweight daily tasks. Gamers should set expectations low: the processor's multi-core score of 2745 in Cinebench R23 demonstrates that modern, heavily threaded game engines will be constrained, making this suitable only for older or less demanding esports titles at lower settings. Content creators working with video editing or 3D rendering will find the performance lacking; the Cinebench R20 multi-core score of 1152 is roughly a quarter of what modern mid-range CPUs achieve, leading to long render times. The chip is best viewed as an entry-level APU solution for a compact or budget-oriented legacy build, not a platform for intensive workloads. Its unlocked multiplier offers overclocking headroom to squeeze out modest gains, but the baseline performance ceiling remains low. Users with heavy multitasking needs—dozens of browser tabs alongside productivity apps—will find the 4-thread limitation a bottleneck, as the Cinebench R15 multi-core score of 276 indicates limited parallel throughput.

Power and Thermals

The processor carries a 95 W TDP, a figure that places it in a moderate power class for its era. This TDP class implies the need for a capable air cooler, not a basic low-profile unit, especially if the unlocked multiplier is used for overclocking. The 28 nm process node, while efficient for its time, does not offer the power efficiency of newer nodes, so sustained all-core loads will generate notable heat. A tower-style air cooler with a 120 mm fan is a reasonable recommendation for maintaining stable clocks under load. The thermal density of the 245 mm² die, containing 2,411 million transistors, means heat is spread across a relatively large surface, which helps cooler mounting but still requires adequate airflow within the chassis. For a small form factor build, the 95 W TDP will require careful case ventilation to avoid thermal throttling during extended workloads. The integrated Radeon R7 graphics share the same thermal envelope, meaning that gaming sessions that stress both CPU and GPU components will push the cooling solution harder. Under typical office workloads, the chip will run cool and quiet, but the power draw is not negligible for a system that idles often. There is no data on boost behavior under thermal constraints, but the 3.90 GHz boost clock over the 3.60 GHz base clock suggests a modest 300 MHz headroom that should be sustainable with adequate cooling.

Single-Thread vs Multi-Thread Behavior

The benchmark data reveals a pronounced strength in single-thread performance relative to its multi-thread showing. The Cinebench R23 single-core score of 387 versus the multi-core score of 2745 yields a ratio of roughly 1:7, which is typical for a 4-core/4-thread part without SMT. This indicates that the Steamroller architecture’s per-core efficiency is its primary asset. For everyday applications like web browsing, word processing, and spreadsheet manipulation—which rely heavily on single-thread performance—the chip will feel reasonably snappy. The single-core score of 162 in Cinebench R20 reinforces this, suggesting that legacy software with single-threaded code paths will run without major hitches. However, the multi-thread performance tells a different story. The Cinebench R15 multi-core score of 276 is modest, reflecting the lack of simultaneous multithreading and the older architecture’s limitations in parallel workloads. In real-world terms, this means the chip will struggle with tasks like video transcoding, 3D rendering, or compiling code, where all four cores are pegged. The split behavior is clear: the A8-7670K is a dual-personality chip, adequate for responsive single-threaded tasks but quickly overwhelmed when all cores are engaged. Users who primarily run one or two demanding applications will see acceptable performance; those who multitask heavily across multiple threads will hit the ceiling fast. The 4 MB L2 cache helps mitigate some of the latency penalties in multi-threaded scenarios, but it cannot compensate for the fundamental 4-thread limit.

How It Compares

Against the AMD Athlon X4 860K, the A8-7670K is statistically indistinguishable, with an average score delta of just 0.1%. The two chips are effectively identical in compute performance, meaning the A8’s integrated Radeon R7 graphics are the sole differentiating factor. If a discrete GPU is already planned, the Athlon offers no disadvantage, but the A8 provides a fallback for GPU-less operation.

The Intel Pentium Gold G5400T also matches the A8-7670K with a 0.1% delta. This comparison is telling: a modern dual-core Pentium with hyper-threading matches a quad-core AMD part from an older generation. The Pentium’s stronger single-thread performance likely compensates for its fewer physical cores, resulting in a wash in overall average score. For gaming, the Pentium may pull ahead in lightly threaded titles, while the A8 holds its own in multi-threaded scenarios.

The AMD Phenom II X6 1045T edges out the A8-7670K by 0.2%, despite being an older six-core design. The Phenom’s two extra cores provide a slight advantage in heavily threaded workloads, while the A8’s newer architecture wins on single-thread efficiency. The net result is a near-tie, with the Phenom being a better choice for multi-tasking on a budget, provided the platform supports it.

The Intel Core i7-2715QE is the closest rival, with a delta of 0.2% in favor of the A8. This is a mobile quad-core i7 from an earlier generation, and its four cores with hyper-threading should theoretically outpace the A8. However, the A8’s higher clock speeds (3.60 GHz base versus the i7’s likely lower mobile clocks) compensate, resulting in parity. The i7-2715QE would be the better option for users needing lower power consumption, but the A8 offers comparable performance with an unlocked multiplier.

FAQ

Q: Is the A8-7670K good for modern gaming?

A: No. Its Cinebench R23 multi-core score of 2745 is far below what modern games require for smooth framerates, making it suitable only for older or less demanding titles.

Q: Does the processor have an integrated GPU?

A: Yes, it includes Radeon R7 integrated graphics, which is a key advantage for builds without a discrete graphics card.

Q: Can I overclock this CPU?

A: Yes, the multiplier is unlocked, allowing for overclocking within the 95 W TDP envelope, provided adequate cooling is used.

Q: What memory type does it support?

A: It supports dual-channel DDR3 memory with a maximum bandwidth of 34.1 GB/s. ECC memory is not supported.

Q: How does it compare to the AMD Athlon X4 860K?

A: The average benchmark scores are nearly identical, with a delta of just 0.1%, so performance is effectively the same. The A8 adds integrated graphics, which the Athlon lacks.

Q: What is the production status of this chip?

A: It is end-of-life, released on July 19, 2015, and is no longer in active production.

Platform and Compatibility

The processor uses the AMD Socket FM2+ interface, which is a legacy platform. It is built on the Godaveri architecture and is compatible with motherboards designed for FM2+ that support the A8 series. Memory support is limited to dual-channel DDR3, with a maximum theoretical bandwidth of 34.1 GB/s; there is no support for DDR4 or ECC memory. For PCIe, the CPU provides 16 Gen 3 lanes, which is sufficient for a single discrete graphics card, though the integrated Radeon R7 graphics can be used instead to free up the lanes. The chip features an unlocked multiplier, making it a candidate for overclocking on FM2+ boards with robust power delivery. The upgrade path is essentially non-existent, as FM2+ is a dead end; the only possible upgrades within the socket would be other FM2+ parts, which offer marginal gains. Users seeking a modern platform with DDR4, PCIe Gen 4 or 5, and M.2 NVMe support will need to move to a completely different socket. The 28 nm process node and 2,411 million transistors on a 245 mm² die indicate the chip is from an era before chiplet designs, so all components are on a single monolithic die. The production status is end-of-life, meaning availability is limited to the second-hand market or remaining retail stock.

Benchmark Performance

The A8-7670K’s average benchmark score of 944 places it in the 24th percentile of all CPUs, a clear indicator of its entry-level standing. The Cinebench R23 multi-core score of 2745 is the most telling figure, as it shows the chip’s performance in modern, heavily threaded workloads. This score is roughly 30% lower than what a contemporary mid-range quad-core would achieve, but the comparison to its nearest rivals is more relevant. Against the Intel Core i7-2715QE, the A8 leads by 0.2%, a negligible margin that falls within run-to-run variance. The AMD Phenom II X6 1045T, a six-core part from 2010, scores 0.2% higher, demonstrating that the A8’s newer architecture barely offsets its two fewer cores. The tie with the Intel Pentium Gold G5400T, a dual-core with hyper-threading, is particularly damning: it means the A8’s four physical cores provide no aggregate advantage over a modern dual-core in the average benchmark suite. The Cinebench R20 single-core score of 162 highlights the chip’s relative weakness in per-thread performance compared to modern designs, which often score above 300 in the same test. The multi-core R20 score of 1152 confirms the pattern: the A8 is a serviceable but unremarkable performer, with its best case being lightweight single-threaded applications. The Cinebench R15 multi-core score of 276 is consistent with the other results, reinforcing the conclusion that the A8-7670K is a legacy part that competes only with other legacy parts. In practical terms, the data shows a processor that will handle everyday computing without complaint but will visibly struggle in any task that scales across all four threads. The 0.1% delta from the Athlon X4 860K suggests that users choosing between the two should base the decision solely on the need for integrated graphics, as compute performance is identical.