AMD A8-7650K vs Intel Core i7-4500U Comparison

The AMD A8-7650K and Intel Core i7-4500U present a stark contrast in design philosophy and intended use case, reflected in their benchmark profiles. The data shows two processors that are near-perfect statistical twins in average score—860 versus 859—yet they achieve this parity through entirely different performance characteristics. The AMD desktop chip dominates multi-threaded rendering workloads, while the Intel mobile part posts decisive victories in single-threaded and general-purpose tasks, illustrating that an average benchmark score can obscure fundamental architectural differences.

Head-to-Head Benchmarks

The head-to-head results reveal a clear split along workload types. In the Cinebench suite, the AMD A8-7650K is the consistent winner across every iteration. In Cinebench R15 multicore, the AMD part scores 266 against Intel's 212, a 25.5% advantage. This pattern holds in Cinebench R20 multicore, where the A8-7650K achieves 1111 points versus 887 for the i7-4500U, a 25.3% delta. The R23 multicore test shows the same margin, with scores of 2647 and 2113 respectively, again a 25.3% difference. The AMD processor's advantage extends to single-core Cinebench tests as well, though the deltas are slightly smaller. In Cinebench R20 single-core, the A8-7650K scores 156 against 125, a 24.8% lead. The R23 single-core result is 373 versus 298, a 25.2% margin. Across all five Cinebench tests, the AMD chip wins by roughly a quarter, a consistent and substantial performance gap.

The Geekbench results tell a completely different story, favoring the Intel Core i7-4500U by even larger margins. In Geekbench multicore, the i7-4500U scores 1562 against the A8-7650K's 1048, a 32.9% advantage for Intel. The single-core Geekbench test is even more lopsided: Intel scores 818, AMD scores 421, resulting in a 48.5% delta. This is a massive difference—the Intel part nearly doubles the AMD processor's single-threaded score. The overall win count stands at 5 wins for AMD and 2 for Intel, but the magnitude of Intel's Geekbench victories is comparable to the magnitude of AMD's Cinebench wins.

Interpreting these results requires understanding the benchmark characteristics. Cinebench is a rendering workload that scales well with core count and raw throughput, which favors the A8-7650K's four physical cores and higher clock speeds. Geekbench, on the other hand, includes a broader mix of tasks, many of which are latency-sensitive and benefit from higher instructions-per-clock efficiency. The i7-4500U's Haswell architecture demonstrates a clear advantage in this type of workload. The near-identical average benchmark scores—860 for AMD, 859 for Intel, a delta of just 0.1%—highlight how these divergent strengths can cancel out in an aggregate metric. The A8-7650K's nearest rivals include the i7-4500U with a delta of 0.1%, but also the Intel Xeon W3520 at -0.2% and the Core i5-3470T at -0.4%. The i7-4500U's rival list similarly places the A8-7650K at -0.1%, confirming their overall performance parity.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD A8-7650K has an average benchmark score of 860, while the Intel Core i7-4500U has 859. The delta between them is 0.1%, making them statistically equivalent in aggregate performance.

Q: How significant is the AMD processor's lead in Cinebench R23 multicore?

A: The A8-7650K scores 2647 in Cinebench R23 multicore, while the i7-4500U scores 2113. This represents a 25.3% advantage for AMD, a substantial margin in a multi-threaded rendering workload.

Q: What is the largest performance difference between the two in any single benchmark?

A: The largest delta is in Geekbench single-core, where the Intel Core i7-4500U scores 818 against the AMD A8-7650K's 421. This is a 48.5% difference, meaning Intel's part achieves nearly double the score.

Q: Do both processors have the same number of physical cores?

A: No. The AMD A8-7650K has 4 physical cores and 4 threads, while the Intel Core i7-4500U has 2 physical cores and 4 threads due to hyper-threading.

Q: How do the two processors compare in terms of total benchmark wins?

A: The AMD A8-7650K wins 5 of the 7 head-to-head benchmarks, all from the Cinebench suite. The Intel Core i7-4500U wins 2 benchmarks, both from Geekbench.

Q: Is the Intel processor's single-core advantage consistent across all tests?

A: No. In Cinebench R20 and R23 single-core tests, the AMD A8-7650K wins by 24.8% and 25.2% respectively. Intel's single-core dominance appears only in Geekbench, where it wins by 48.5%.

Architecture Differences

The two processors are built on fundamentally different foundations. The AMD A8-7650K uses the Steamroller architecture, part of the Kaveri generation, fabricated on a 28 nm process at GlobalFoundries. It features 4 cores and 4 threads, with a die size of 245 mm² and 2,411 million transistors. Its cache hierarchy includes 256 KB of L1 and 4 MB of L2, with no L3 cache. The Intel Core i7-4500U, by contrast, uses the Haswell architecture, specifically Haswell-ULT, built on a 22 nm process at Intel. It has 2 cores and 4 threads, with a die size of 118 mm² and 1,300 million transistors. Its cache layout is different: 64 KB of L1 per core, 256 KB of L2 per core, and 4 MB of shared L3 cache. The presence of L3 cache on the Intel part and its absence on the AMD part is a notable architectural divergence.

Clock speeds also differ significantly. The AMD A8-7650K has a base clock of 3.30 GHz and a boost clock of 3.80 GHz. The Intel i7-4500U has a base clock of 1.80 GHz and a boost clock of 3.00 GHz. The AMD part runs at a much higher base frequency, which contributes to its Cinebench performance. The Intel part's lower base clock is characteristic of a mobile processor designed for power efficiency, with a TDP of 15 watts compared to the AMD's 95 watts. This 80-watt difference in TDP is substantial and reflects the i7-4500U's mobile market segment versus the A8-7650K's desktop segment. The AMD processor uses the AMD Socket FM2+ interface, while the Intel part uses Intel BGA 1168, a soldered mobile socket.

The integrated graphics also differ: the AMD A8-7650K features Radeon R7 graphics, while the Intel Core i7-4500U has Intel HD 4400. The AMD processor has an unlocked multiplier, indicating overclocking capability, while the Intel part's multiplier is locked. Memory support is DDR3 for both, but the AMD part specifies dual-channel memory with a bandwidth of 34.1 GB/s, while the Intel part's memory bus and bandwidth are not specified in the data. PCIe support is listed for the AMD part as Gen 3 with 16 lanes (CPU only), while no PCIe information is provided for the Intel part. The AMD processor also includes ECC memory support as false, and the Intel part similarly does not support ECC.

The Verdict

The data supports a straightforward recommendation based on workload and platform. For multi-threaded rendering tasks, the AMD A8-7650K is the clear choice. Its Cinebench R23 multicore score of 2647 is 25.3% higher than the Intel part's 2113, and this advantage is consistent across all Cinebench versions. The AMD processor's four physical cores and higher clock speeds make it better suited for applications that leverage all available cores. Users running Cinebench-style workloads on a desktop platform with an FM2+ socket should select the A8-7650K.

For single-threaded and general-purpose computing, the Intel Core i7-4500U is superior. Its Geekbench single-core score of 818 is 48.5% higher than the AMD part's 421, and its Geekbench multicore score of 1562 is 32.9% higher than AMD's 1048. This indicates better per-core efficiency and stronger performance in latency-sensitive tasks. The Intel part's mobile form factor and 15-watt TDP make it the appropriate choice for ultraportable laptops where power consumption is a primary concern. The data does not support a "one-size-fits-all" verdict; the right choice depends entirely on whether the user prioritizes multi-core rendering throughput or single-threaded responsiveness.

The near-identical average scores—860 versus 859—mean that for a user with a balanced mix of workloads, either processor will deliver similar overall performance. However, the specific benchmark profile suggests that the A8-7650K will feel faster in content creation and rendering, while the i7-4500U will feel snappier in everyday tasks and applications that rely heavily on single-thread performance. Production status also differs: the AMD part is listed as end-of-life, while the Intel part's production status is not specified in the data.

Specification Differences

The two processors differ in nearly every core specification. The AMD A8-7650K has 4 cores and 4 threads, while the Intel Core i7-4500U has 2 cores and 4 threads. Base clocks are 3.30 GHz for AMD and 1.80 GHz for Intel. Boost clocks are 3.80 GHz for AMD and 3.00 GHz for Intel. TDP is 95 watts for AMD and 15 watts for Intel. Sockets are AMD Socket FM2+ for the AMD part and Intel BGA 1168 for the Intel part. Architecture is Steamroller for AMD and Haswell for Intel. Process nodes are 28 nm for AMD and 22 nm for Intel. Transistor counts are 2,411 million for AMD and 1,300 million for Intel. Die sizes are 245 mm² for AMD and 118 mm² for Intel. Cache configurations differ: AMD has 256 KB L1 and 4 MB L2 with no L3; Intel has 64 KB L1 per core, 256 KB L2 per core, and 4 MB shared L3. Memory bandwidth is specified as 34.1 GB/s for AMD, while no bandwidth is listed for Intel. PCIe support is Gen 3 with 16 lanes for AMD, with no PCIe data for Intel. Integrated graphics are Radeon R7 for AMD and Intel HD 4400 for Intel. Market segments are Desktop for AMD and Mobile for Intel. Release dates are 2015-01-06 for AMD and 2013-06-03 for Intel. The AMD multiplier is unlocked, while the Intel multiplier is locked. The AMD part number is AD765KXBJABOXAD765KXBJASBXAD765KXBI44JA, and the Intel part number is SR16Z.