AMD PRO A12-8870E vs Intel Core i7-860 Comparison

The Intel Core i7-860 and AMD PRO A12-8870E represent two very different approaches to desktop computing, separated by nearly a decade of design philosophy. The data shows a remarkably tight contest, with the older Intel part edging out the newer AMD chip in every single benchmark tested. Across five Cinebench tests, the Intel Core i7-860 wins all of them, though the margins are razor-thin, ranging from a 0.6% advantage in the R23 tests to a 0.8% lead in R15 multicore. This is not a story of a dominant victor, but rather one of close statistical equivalence, where the underlying architecture and feature set become the deciding factors.

Head-to-Head Benchmarks

The benchmark results paint a picture of near-perfect parity, with the Intel Core i7-860 holding a consistent, if slim, margin over the AMD PRO A12-8870E in every workload. In Cinebench R15 multicore, the Intel part scores 259 against AMD’s 257, a 0.8% difference. This pattern repeats in Cinebench R20 multicore, where Intel’s 1081 edges out AMD’s 1074 by 0.7%. The single-core tests tell the same story: Intel leads with 152 versus 151 in R20 single-core (a 0.7% delta) and 363 versus 361 in R23 single-core (a 0.6% delta). The largest margin of victory for Intel is a mere 0.8%, which is within the range of normal run-to-run variance for most benchmarking software.

The fact that the Intel Core i7-860, with a 95W TDP and a 45nm process, can match and slightly surpass the AMD PRO A12-8870E, which uses a 35W TDP and a 28nm process, is notable. The AMD chip’s higher base clock (2.90 GHz vs 2.80 GHz) and boost clock (3.70 GHz vs 3.47 GHz) are not enough to overcome Intel’s architectural advantages. The average benchmark score reinforces this narrative: Intel’s 886 average sits just 0.7% above AMD’s 880. When placed against their respective nearest rivals, both CPUs occupy a similar performance tier. The Intel Core i7-860 is statistically tied with the AMD PRO A8-8650B and Intel Pentium G4560T, with deltaPct values of -0.1%. Meanwhile, the AMD PRO A12-8870E shows a 0% delta versus the AMD Ryzen 3 2300U, indicating a perfect score match.

Architecture Differences

The most fundamental difference between these two processors is their underlying architecture and process technology. The Intel Core i7-860 is built on the Nehalem architecture with the Lynnfield codename, manufactured on a 45nm process by Intel. This design employs 774 million transistors on a die size of 296 mm². In contrast, the AMD PRO A12-8870E utilizes the Excavator architecture with the Carrizo codename, built on a 28nm process by GlobalFoundries. AMD’s chip packs a significantly larger 3,100 million transistors into a smaller 250 mm² die, proof of the density improvements of the newer process node.

Threading is a critical differentiator. The Intel Core i7-860 supports 8 threads across its 4 cores, leveraging Hyper-Threading technology. The AMD PRO A12-8870E, despite having 4 cores, only supports 4 threads, lacking simultaneous multi-threading. This explains why Intel can match or beat AMD despite the latter’s higher clock speeds. The cache hierarchies also differ substantially. Intel provides a large 8 MB shared L3 cache, while AMD’s design has no L3 cache at all, relying instead on a 2 MB L2 cache and a 320 KB L1 cache. Intel’s L1 and L2 caches are listed as per-core (64 KB and 256 KB respectively), while AMD’s figures are aggregate.

Memory and I/O support further separate the two. The Intel part is limited to DDR3 memory over a dual-channel bus, while the AMD chip supports DDR4 with a specified memory bandwidth of 38.4 GB/s and a dual-channel bus. PCIe connectivity also differs: Intel offers Gen 2 with 16 lanes from the CPU, whereas AMD provides Gen 3 support. A major functional difference is the integrated graphics. The AMD PRO A12-8870E includes a Radeon R7 iGPU, while the Intel Core i7-860 has no integrated graphics listed, requiring a discrete GPU for any display output. The socket is another clear split: Intel uses the older Socket 1156, while AMD uses the modern AM4 platform.

The Verdict

From the benchmark data alone, the Intel Core i7-860 is the technically superior processor, winning all five head-to-head comparisons. However, the margins are so small—never exceeding 0.8%—that the performance difference is effectively negligible for real-world applications. A user would be hard-pressed to notice any difference in daily tasks between a CPU scoring 259 and one scoring 257 in Cinebench R15. The Intel chip’s advantage comes from its 8 threads and larger L3 cache, which provide a slight edge in heavily threaded workloads.

The AMD PRO A12-8870E, despite losing every benchmark, offers a compelling counter-argument. Its 35W TDP versus Intel’s 95W TDP indicates significantly higher power efficiency. It also brings modern features that the Intel chip lacks: DDR4 memory support, PCIe Gen 3, and integrated Radeon R7 graphics. For a system that does not require a discrete GPU, the AMD part eliminates that cost and power draw entirely. The data suggests a choice between raw computational parity and platform modernity. The Intel Core i7-860 wins on pure benchmark scores, but the AMD PRO A12-8870E wins on efficiency and feature integration.

FAQ

Q: Which processor has a higher single-core performance?

A: The Intel Core i7-860 leads in single-core tests, scoring 152 and 363 in Cinebench R20 and R23 single-core respectively, versus AMD’s 151 and 361. The delta is 0.7% and 0.6% respectively.

Q: Does the AMD PRO A12-8870E have more cores than the Intel Core i7-860?

A: No, both have 4 cores. However, the Intel Core i7-860 supports 8 threads, while the AMD PRO A12-8870E only supports 4 threads.

Q: What is the TDP difference between the two CPUs?

A: The Intel Core i7-860 has a TDP of 95W, while the AMD PRO A12-8870E has a much lower TDP of 35W.

Q: Which CPU has a larger L3 cache?

A: The Intel Core i7-860 has an 8 MB shared L3 cache. The AMD PRO A12-8870E does not have an L3 cache listed.

Q: Which processor supports DDR4 memory?

A: The AMD PRO A12-8870E supports DDR4 memory with a bandwidth of 38.4 GB/s. The Intel Core i7-860 only supports DDR3.

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

A: The Intel Core i7-860 has an average benchmark score of 886, while the AMD PRO A12-8870E has an average score of 880.

Where Each One Wins

The Intel Core i7-860 wins in all five benchmark categories listed, including both multicore and single-core Cinebench tests. Its victory is driven by its 8 threads, which allow it to process more parallel workloads than the AMD chip’s 4 threads. The larger 8 MB L3 cache also helps in scenarios where data can be reused quickly. This makes the Intel part a slightly better choice for CPU-bound tasks that are optimized for multi-threading, such as video rendering or 3D modeling, even if the advantage is only around 0.7%.

The AMD PRO A12-8870E, despite losing the benchmarks, wins in several non-performance categories. Its 35W TDP makes it a much more efficient choice for low-power or compact builds where heat and electricity are concerns. The inclusion of integrated Radeon R7 graphics means it can power a basic display without a separate GPU, a feature the Intel Core i7-860 lacks entirely. The AMD chip’s support for DDR4 memory and PCIe Gen 3 also makes it more compatible with modern system components. For a basic office PC or a home theater setup, the AMD processor’s integrated graphics and lower power draw are distinct advantages. The data shows the Intel chip is faster, but the AMD chip is more practical in a modern context.

Specification Differences

The two processors differ on nearly every specification point. The Intel Core i7-860 uses the Nehalem architecture on a 45nm process, while the AMD PRO A12-8870E uses Excavator on a 28nm process. Intel’s chip has 774 million transistors on a 296 mm² die, whereas AMD’s has 3,100 million transistors on a 250 mm² die. The core counts are equal at 4, but Intel supports 8 threads versus AMD’s 4. Clock speeds favor AMD: 2.90 GHz base and 3.70 GHz boost versus Intel’s 2.80 GHz base and 3.47 GHz boost. The TDP is drastically different, with Intel at 95W and AMD at 35W.

Cache configurations are not comparable: Intel lists 64 KB L1 and 256 KB L2 per core, plus 8 MB shared L3, while AMD lists 320 KB L1 and 2 MB L2 with no L3. Memory support differs, with Intel using DDR3 and AMD using DDR4 with a specified 38.4 GB/s bandwidth. PCIe versions also differ, with Intel on Gen 2 and AMD on Gen 3. The Intel Core i7-860 has no integrated graphics, while the AMD PRO A12-8870E includes a Radeon R7 iGPU. The sockets are incompatible: Intel uses LGA 1156, AMD uses AM4. Intel’s production status is end-of-life, while AMD’s is active. The Intel part was released in 2009, while AMD’s release date is not provided.