AMD PRO A10-8770E vs AMD PRO A8-8650B Comparison
AMD PRO A10-8770E
PRO A8-8650B
PERFORMANCE BENCHMARKS
Analysis: AMD PRO A10-8770E vs AMD PRO A8-8650B
FAQ
Q: Which processor wins more head-to-head benchmark comparisons?
A: The AMD PRO A8-8650B wins 5 of the 7 head-to-head tests, while the AMD PRO A10-8770E wins 2. However, the A10-8770E’s victories come by large margins in Geekbench, where it leads by 21.8% in multi-core and 29.7% in single-core.
Q: How do the two chips compare in Cinebench R23 multi-core performance?
A: The AMD PRO A8-8650B scores 2734 in Cinebench R23 multi-core, which is 6.4% higher than the AMD PRO A10-8770E’s 2560. The lead is consistent across all Cinebench versions, with the A8-8650B ahead by 6.2% in R15 multi-core and 6.4% in R20 multi-core.
Q: Does the newer architecture give the A10-8770E an advantage in any benchmark?
A: Yes, in Geekbench the Excavator-based A10-8770E (Carrizo) scores 1291 multi-core and 572 single-core, versus 1060 and 441 for the Steamroller-based A8-8650B (Godaveri). That translates to a 21.8% multi-core and 29.7% single-core advantage.
Q: What are the power consumption differences?
A: The AMD PRO A10-8770E has a 35W TDP, while the AMD PRO A8-8650B has a 65W TDP. This makes the A10-8770E substantially more power-efficient on paper, though the A8-8650B still delivers higher Cinebench scores.
Q: Which processor supports newer memory technology?
A: The AMD PRO A10-8770E supports DDR4 memory with 38.4 GB/s bandwidth, while the AMD PRO A8-8650B uses DDR3 with 34.1 GB/s bandwidth. Both use dual-channel memory buses.
Q: Are these chips comparable to any Intel processors?
A: The A10-8770E’s average benchmark score of 895 matches the Intel Core i5-5300U and Intel Pentium G4600T, and it sits 0.2% above the AMD Ryzen 3 3200U. The A8-8650B’s average score of 887 matches the Intel Pentium G4560T and sits 0.1% above the Intel Xeon X5550.
Architecture Differences
The two processors come from different AMD generations and microarchitectures. The AMD PRO A10-8770E is built on the Excavator architecture with the codename Carrizo, while the AMD PRO A8-8650B uses the older Steamroller architecture with the codename Godaveri. Both are fabricated on a 28 nm process at GlobalFoundries, but the transistor counts differ notably: the A10-8770E packs 3,100 million transistors on a 250 mm² die, whereas the A8-8650B has 2,411 million transistors on a 245 mm² die.
Cache hierarchies also diverge. The A10-8770E has 320 KB of L1 cache and 2 MB of L2 cache, while the A8-8650B has 256 KB of L1 and a larger 4 MB of L2 cache. Neither processor has L3 cache. The larger L2 on the older chip may partially explain its Cinebench advantage, as those workloads can benefit from deeper cache.
Memory support is a major architectural split. The A10-8770E supports DDR4 with a memory bandwidth of 38.4 GB/s, while the A8-8650B is limited to DDR3 with 34.1 GB/s bandwidth. Both run dual-channel memory, but the newer platform offers higher theoretical throughput. Neither chip supports ECC memory.
The sockets are incompatible. The A10-8770E uses AMD Socket AM4, while the A8-8650B uses AMD Socket FM2+. This means upgrades between these two would require a motherboard change. Both processors integrate Radeon R7 graphics, but the A10-8770E lists PCIe Gen 3 support while the A8-8650B specifies PCIe Gen 3 with 16 lanes (CPU only).
Production status differs as well: the A10-8770E is listed as Active, while the A8-8650B is End-of-life. The A8-8650B has a release date of September 28, 2015, while no release date is provided for the A10-8770E. Neither chip has an unlocked multiplier, so overclocking headroom is not officially available on either.
Head-to-Head Benchmarks
The benchmark results paint a split picture. The AMD PRO A8-8650B dominates every Cinebench test, while the AMD PRO A10-8770E sweeps Geekbench. Starting with Cinebench R15 multi-core, the A8-8650B scores 275 versus 258 for the A10-8770E, a 6.2% lead. In Cinebench R20 multi-core, the margin widens slightly to 6.4%, with scores of 1148 and 1075 respectively.
Single-core Cinebench results follow the same pattern. In Cinebench R20 single-core, the A8-8650B scores 162 against 151 for the A10-8770E, a 6.8% gap. Cinebench R23 single-core shows 386 versus 361, a 6.5% difference. The consistency across three Cinebench versions suggests a fundamental performance advantage for the Steamroller chip in these rendering workloads, likely tied to its higher base clock of 3.20 GHz and boost clock of 3.90 GHz, compared to 2.80 GHz and 3.50 GHz for the A10-8770E.
The Geekbench results flip the narrative decisively. In Geekbench multi-core, the A10-8770E scores 1291 against 1060 for the A8-8650B, a 21.8% advantage. Single-core Geekbench shows an even larger gap: 572 versus 441, a 29.7% lead. This is a striking reversal — the newer Excavator architecture delivers dramatically better performance in Geekbench despite lower clock speeds.
The wins break down as 5 for the A8-8650B and 2 for the A10-8770E. However, the magnitude of the A10-8770E’s Geekbench victories is substantial. A 29.7% single-core lead is nearly five times larger than the A8-8650B’s largest Cinebench margin of 6.8%. When interpreting average benchmark scores, the two chips land close: the A10-8770E averages 895 across all tests, while the A8-8650B averages 887, a difference of only 0.9%. Both sit at the 24th percentile among all CPUs.
Specification Differences
The core and thread counts are identical — both processors have 4 cores and 4 threads. The differences begin with clock speeds. The A8-8650B has a 3.20 GHz base clock and 3.90 GHz boost clock, while the A10-8770E runs at 2.80 GHz base and 3.50 GHz boost. That gives the A8-8650B a 0.40 GHz advantage at both ends.
Power draw is a significant differentiator. The A10-8770E is rated at 35W TDP, while the A8-8650B is rated at 65W — a 30W gap. This means the A10-8770E delivers most of the A8-8650B’s Cinebench performance at roughly half the power envelope.
Socket and platform support diverge completely. The A10-8770E uses AMD Socket AM4 with DDR4 memory, while the A8-8650B uses AMD Socket FM2+ with DDR3 memory. Memory bandwidth differs accordingly: 38.4 GB/s for the A10-8770E versus 34.1 GB/s for the A8-8650B.
Cache allocations differ in both L1 and L2. The A10-8770E has 320 KB of L1 and 2 MB of L2, while the A8-8650B has 256 KB of L1 and 4 MB of L2. Transistor counts and die sizes also differ: 3,100 million transistors on 250 mm² for the A10-8770E, versus 2,411 million on 245 mm² for the A8-8650B.
The production status separates them further. The A10-8770E remains Active, while the A8-8650B is End-of-life with a release date of September 28, 2015. Part numbers also differ: AD877BAHM44AB for the A10-8770E and AD865BYBI44JC for the A8-8650B. Both are listed as desktop market segment parts with locked multipliers.
The Verdict
The data supports different choices depending on workload priorities. For Cinebench-style rendering tasks, the AMD PRO A8-8650B is the clear winner, holding a 6.2% to 6.8% advantage across all three Cinebench versions tested. Its higher base and boost clocks — 3.20 GHz and 3.90 GHz versus 2.80 GHz and 3.50 GHz — appear to drive this consistent lead.
For Geekbench-oriented applications, the AMD PRO A10-8770E is decisively superior. Its 29.7% single-core and 21.8% multi-core wins suggest the newer Excavator architecture handles these workloads far more efficiently, despite lower clock speeds and a smaller L2 cache.
System builders should weigh the platform trade-offs. The A10-8770E offers DDR4 support and a 35W TDP, making it attractive for power-constrained or newer AM4 builds. The A8-8650B’s DDR3 requirement and FM2+ socket limit it to older platforms, but its End-of-life status may mean lower availability. The A8-8650B also carries a 65W TDP, so cooling and power supply requirements are higher.
Neither chip distinguishes itself in the broader market. Both sit at the 24th percentile among all CPUs, and their average scores (895 vs 887) are separated by less than 1%. The A10-8770E matches the Intel Core i5-5300U and Intel Pentium G4600T exactly, while the A8-8650B matches the Intel Pentium G4560T. For buyers choosing between these two AMD parts specifically, the decision hinges on whether Cinebench performance or Geekbench performance matters more, and whether the newer AM4/DDR4 platform justifies the A10-8770E’s lower raw rendering scores.