AMD A10 PRO-7850B vs AMD PRO A10-8750B Comparison

The AMD A10 PRO-7850B and AMD PRO A10-8750B are two closely matched desktop processors from the same Steamroller family, but the benchmark data reveals a clear performance hierarchy. While both chips share the same core count, TDP, and integrated graphics, their benchmark scores diverge significantly, with the older A10 PRO-7850B holding a decisive edge in every measured category. This analysis examines the head-to-head data, architectural lineage, and specification differences to determine which processor is better suited for specific workloads.

Head-to-Head Benchmarks

The direct comparison between these two APUs is limited to two Geekbench tests, but the results are unambiguous. In the Geekbench multicore test, the AMD A10 PRO-7850B scores 1194, while the AMD PRO A10-8750B trails with 985. This represents a 21.2% advantage for the 7850B — a substantial margin that suggests the older chip is significantly more efficient in multi-threaded scenarios. The single-core test tells a similar story, albeit with a narrower gap: the 7850B scores 462 against the 8750B's 416, yielding an 11.1% lead. Across both benchmarks, the 7850B wins 2 out of 2 comparisons, while the 8750B records zero wins.

These numbers position the 7850B well against its broader competitive set. Its average benchmark score of 828 places it 0.9% ahead of the Xeon E5540 (820) and 0.8% below the Core i5-3360M (835). The 8750B, by contrast, has an average score of 821, which is 0.1% above the Xeon E5540 and 0.6% above the Core i5-L16G7 (816). Interestingly, the two AMD chips are each other's closest rivals — the 7850B sits 0.9% above the 8750B, and the 8750B sits 0.8% below the 7850B. The data suggests that while both chips occupy the same performance tier (both are in the 22nd percentile of all CPUs), the 7850B is the stronger performer within that tier.

The Geekbench single-core delta is particularly telling. An 11.1% single-threaded gap is unusual for two chips with identical boost clocks of 4.00 GHz. This implies that factors beyond raw clock speed — such as microarchitectural improvements or power delivery — are at play. The 7850B's higher base clock of 3.70 GHz versus the 8750B's 3.60 GHz likely contributes, but it does not fully explain the magnitude of the difference. The multicore gap of 21.2% is even more pronounced, suggesting that the 7850B sustains its performance better under full load across all four cores.

Where Each One Wins

Based strictly on the benchmark wins, the AMD A10 PRO-7850B is the clear victor in both measured categories. It wins the Geekbench multicore test with a 21.2% delta and the Geekbench single-core test with an 11.1% delta. This means that in any workload that relies on either single-threaded performance (such as legacy applications, lightly threaded games, or everyday desktop responsiveness) or multi-threaded performance (such as video encoding, rendering, or multi-tasking), the 7850B is the better choice.

The AMD PRO A10-8750B, despite having zero head-to-head wins, is not without merit in the broader context. It has additional benchmark results that were not measured for the 7850B, including Cinebench R15, R20, and R23 scores. In Cinebench R20 multicore, it scores 1060, and in Cinebench R23 multicore, it reaches 2525. These numbers, while not directly comparable to the 7850B (which lacks Cinebench data), indicate that the 8750B is a capable processor in its own right. However, the absence of Cinebench results for the 7850B means that the only apples-to-apples comparison available is the Geekbench data, and in that data, the 8750B consistently loses.

For users who prioritize the specific Cinebench workloads, the 8750B offers measurable performance in rendering tasks, with a single-core score of 356 in Cinebench R23 and 149 in Cinebench R20. But since the 7850B has no equivalent scores, we cannot determine whether it would outperform the 8750B in those specific tests. The data we do have, however, strongly suggests it would — given the 7850B's superior Geekbench results across both single and multi-core tests.

The Verdict

From the available data, the AMD A10 PRO-7850B is the superior processor in every benchmark where both are compared. Its 21.2% lead in Geekbench multicore and 11.1% lead in Geekbench single-core are decisive margins that translate into real-world performance advantages. If a user is choosing between these two processors based on performance alone, the 7850B is the clear recommendation.

That said, the AMD PRO A10-8750B is not a poor performer. Its average benchmark score of 821 places it just 0.8% below its rival, and it sits comfortably within the same percentile tier (22nd) as the 7850B. The 8750B also benefits from a later release date (September 2015 versus July 2014 for the 7850B), which might suggest better manufacturing maturity or revised stepping. However, the benchmark data does not reflect any such advantage — the newer chip actually performs worse in the measured tests.

The practical takeaway is straightforward: for any workload that relies on Geekbench-measurable performance — which includes most general-purpose computing, office productivity, and light content creation — the 7850B is the better buy. The 8750B would only be preferable if a user specifically needed the Cinebench-validated rendering performance, and even then, the lack of comparative Cinebench data for the 7850B makes it impossible to confirm that the 8750B holds any advantage in those tasks. Both chips are end-of-life products, so availability and platform compatibility should be considered, but on pure performance, the 7850B wins.

FAQ

Q: Which processor has a higher Geekbench multicore score?

A: The AMD A10 PRO-7850B scores 1194, which is 21.2% higher than the AMD PRO A10-8750B's 985.

Q: What is the single-core performance difference between the two?

A: The 7850B scores 462 in Geekbench single-core, while the 8750B scores 416, giving the 7850B an 11.1% advantage.

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

A: Yes, both have 4 cores and 4 threads.

Q: Which processor has a higher base clock speed?

A: The 7850B has a base clock of 3.70 GHz, compared to the 8750B's 3.60 GHz. Both have the same boost clock of 4.00 GHz.

Q: Are there any benchmark tests where the 8750B wins?

A: In the head-to-head comparisons, the 8750B has zero wins. The 7850B wins both the Geekbench multicore and single-core tests.

Q: What is the average benchmark score for each processor?

A: The 7850B has an average benchmark score of 828, while the 8750B averages 821, a difference of 0.9%.

Architecture Differences

Both processors are built on the Steamroller architecture, but they belong to different codename lineages. The AMD A10 PRO-7850B is codenamed "Kaveri," while the AMD PRO A10-8750B is codenamed "Godaveri." This distinction is significant because Godaveri is essentially a refresh of the Kaveri design, not a full architectural overhaul. Both chips are manufactured on a 28 nm process at GlobalFoundries, with identical transistor counts of 2,411 million and die sizes of 245 mm².

The cache hierarchy is identical between the two: 256 KB of L1 cache and 4 MB of L2 cache, with no L3 cache present. Both support DDR3 memory in a dual-channel configuration, delivering 34.1 GB/s of memory bandwidth. Neither supports ECC memory, and both lack an unlocked multiplier, meaning overclocking is not officially supported. The integrated graphics are the same Radeon R7 solution, and both use the AMD Socket FM2+ interface with PCIe Gen 3 (16 lanes from the CPU).

The key architectural difference lies in the codename refresh. Godaveri (the 8750B) is a later revision of the Kaveri design, released over a year after the original. However, the benchmark data shows that this refresh did not yield performance improvements — in fact, it resulted in lower scores. This suggests that the Godaveri refresh may have focused on power efficiency or production cost reductions rather than raw performance, or that the 7850B benefits from a more favorable binning or firmware implementation.

Specification Differences

The most notable specification difference is the base clock speed. The A10 PRO-7850B runs at 3.70 GHz, while the PRO A10-8750B runs at 3.60 GHz — a 100 MHz advantage for the 7850B. Both share the same 4.00 GHz boost clock, so the 7850B's advantage is maintained at maximum frequency. The TDP is identical at 95 watts for both, and the core/thread count is the same at 4/4.

The release dates differ significantly: the 7850B launched on July 30, 2014, while the 8750B launched on September 28, 2015 — over a year later. Despite this, both processors are now end-of-life products. The part numbers differ (AD785BXBI44JA for the 7850B and AD875BYBI44JC for the 8750B), but this is purely a manufacturing identifier.

All other specifications are identical: 28 nm process node, 2,411 million transistors, 245 mm² die size, 256 KB L1 cache, 4 MB L2 cache, no L3 cache, DDR3 dual-channel memory with 34.1 GB/s bandwidth, no ECC support, PCIe Gen 3 with 16 lanes, Radeon R7 integrated graphics, and AMD Socket FM2+. Neither chip has a listed launch MSRP, and both are locked (multiplier not unlocked). The only other difference is the generation label: the 7850B is listed as "A10 (Kaveri)" while the 8750B is "A10 (Godaveri)," reflecting their codename lineage.