AMD Athlon PRO 3045B vs Intel Core i7-860 Comparison

Head-to-Head Benchmarks

The benchmark data presents an unusually consistent picture: the Intel Core i7-860 wins every single recorded comparison against the AMD Athlon PRO 3045B. Across five Cinebench tests, the margin never strays far from 9.3 to 9.4 percent. That consistency suggests a fundamental performance gap rather than a workload-specific quirk.

In Cinebench R15 multi-core, the Intel part scores 259 against AMD's 237, a 9.3 percent advantage. The R20 multi-core test shows 1081 versus 988, a 9.4 percent lead. The R23 multi-core result follows the same pattern: 2574 versus 2354, again 9.3 percent. The single-core tests tell the identical story. R20 single-core shows 152 versus 139, and R23 single-core shows 363 versus 332, both with a 9.3 or 9.4 percent gap.

What is remarkable here is that the Intel processor wins by nearly the same margin in both single-threaded and multi-threaded workloads. This uniformity implies that the difference is not about core count scaling or thread utilization, but rather about raw per-thread efficiency. The Intel chip's older architecture still delivers a higher baseline of instruction throughput in every scenario the database recorded.

The delta percentages are telling. When the nearest rival data is examined, the Intel Core i7-860 sits at 886 average benchmark score, while its closest competitor, the AMD PRO A8-8650B, scores 887, a -0.1 percent difference. The AMD Athlon PRO 3045B posts a 872 average, with its nearest rival being the Intel Atom C5315 at 871, a 0.1 percent difference. The head-to-head gap of 9.3 percent is far larger than the margins these processors see against their own nearest rivals.

The data shows that the Intel part's percentile ranking at 24 versus AMD's 23 is nearly identical, yet the direct comparison reveals a decisive winner. This suggests that both processors occupy a similar tier in the broader CPU landscape, but within that tier, the Intel design holds a consistent edge. The AMD processor does have a Geekbench score in the database, 1287 multi-core and 766 single-core, but no corresponding Geekbench test exists for the Intel chip, so no direct comparison can be made there.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i7-860 records an average benchmark score of 886, while the AMD Athlon PRO 3045B scores 872. The Intel part also holds a 24th percentile ranking versus AMD's 23rd, a marginal difference that masks the larger head-to-head margins.

Q: What is the biggest single-test margin between the two?

A: The largest recorded advantage for the Intel Core i7-860 is 9.4 percent, seen in both Cinebench R20 multi-core (1081 versus 988) and Cinebench R20 single-core (152 versus 139). The other three tests all show a 9.3 percent gap.

Q: Does the AMD processor win any benchmark in the head-to-head set?

A: No. The head-to-head data records 5 wins for the Intel Core i7-860 and 0 wins for the AMD Athlon PRO 3045B. Every Cinebench test, regardless of core count or thread usage, favors the Intel part.

Q: How do these processors compare to their closest competitors?

A: The Intel Core i7-860's nearest rival is the AMD PRO A8-8650B with a 887 average score, a -0.1 percent difference. The AMD Athlon PRO 3045B's nearest rival is the Intel Atom C5315 at 871, a 0.1 percent difference. Both chips are effectively tied with their closest rivals in the database.

Q: Is the AMD processor's lower TDP reflected in its benchmark scores?

A: The AMD Athlon PRO 3045B has a 15 TDP versus the Intel Core i7-860's 95 TDP, a substantial difference. However, the benchmark data shows the Intel part still outperforms the AMD chip by over 9 percent in every Cinebench test, despite consuming significantly more power.

Q: What does the single-core performance gap imply about architecture efficiency?

A: The Intel Core i7-860 leads by 9.4 percent in Cinebench R20 single-core and 9.3 percent in R23 single-core. Since these tests use only one core, the gap reflects the per-thread capability of each design, not core count advantages. The Intel Nehalem architecture appears to extract more performance from each individual core than AMD's Zen-based Dali design in these recorded workloads.

The Verdict

The data points to a clear winner for raw compute performance: the Intel Core i7-860. It wins all five head-to-head benchmark comparisons with margins between 9.3 and 9.4 percent. The AMD Athlon PRO 3045B cannot claim a single benchmark victory in the recorded set.

However, the verdict is not merely about scores. The Intel processor is end-of-life, uses DDR3 memory, and features a 95 TDP. The AMD chip is active production, supports DDR4 with a recorded memory bandwidth of 38.4 GB/s, and operates at just 15 TDP. The database shows the Intel part is 24th percentile and the AMD part is 23rd, nearly identical overall standings.

For users prioritizing pure processing speed in Cinebench-style workloads, the Intel Core i7-860 is the data-backed choice. For those who need an active, low-power processor with modern memory support and integrated graphics, the AMD Athlon PRO 3045B offers those capabilities, though with a measured performance deficit. The Intel chip's higher transistor count of 774 million versus AMD's 3,500 million is notable, but the AMD part packs far more transistors on a much smaller 148 mm² die versus Intel's 296 mm², indicating a denser, more modern manufacturing approach.

Specification Differences

The two processors diverge sharply on almost every specification field. The Intel Core i7-860 offers 4 cores and 8 threads, while the AMD Athlon PRO 3045B provides 2 cores and 4 threads. Base clocks differ: 2.80 GHz for Intel versus 2.30 GHz for AMD. Boost clocks show 3.47 GHz for Intel and 3.20 GHz for AMD.

The TDP gap is enormous: 95 watts for Intel versus 15 watts for AMD. Sockets are incompatible: Intel Socket 1156 versus AMD Socket FP5. The Intel part requires DDR3 memory, while the AMD chip uses DDR4 and records a memory bandwidth of 38.4 GB/s, a figure the Intel entry does not provide. ECC memory support is absent on the Intel chip but present on the AMD chip.

PCIe generations differ: Gen 2 with 16 lanes for Intel versus Gen 3 with 12 lanes for AMD. The AMD processor includes integrated Radeon Vega graphics with 2 compute units, while the Intel part lists no integrated graphics. Market segments also differ: the Intel chip is marked Desktop, while the AMD chip is marked Mobile. Production status shows Intel as end-of-life and AMD as active. The Intel part has a release date of 2009-09-07, while the AMD entry has no recorded release date.

Architecture Differences

The architectural contrast is generational. The Intel Core i7-860 uses the Nehalem architecture with the Lynnfield codename, built on a 45 nm process at Intel's foundry. The AMD Athlon PRO 3045B uses the Zen architecture with the Dali codename, built on a 14 nm process at GlobalFoundries. This process gap explains the transistor density difference: Intel packs 774 million transistors into 296 mm², while AMD fits 3,500 million into just 148 mm².

Cache layouts differ significantly. The Intel chip provides 64 KB L1 per core, 256 KB L2 per core, and 8 MB shared L3. The AMD chip offers 96 KB L1 per core, 512 KB L2 per core, and 4 MB shared L3. The AMD part actually has more private cache per core, but half the shared L3 capacity. The Intel generation string reads "Core i7 (Lynnfield)" while AMD's reads "Athlon (Zen (Dali))".

Both use dual-channel memory buses, but the Intel part supports DDR3 while AMD supports DDR4. The AMD chip's 38.4 GB/s memory bandwidth is recorded, while the Intel entry provides no bandwidth figure. The Intel part has a part number of SLBJJ, while AMD lists YM3045C4T2OFG. Neither processor has an unlocked multiplier, so both are locked for overclocking. The Intel chip's 16 PCIe Gen 2 lanes compare to AMD's 12 PCIe Gen 3 lanes, offering a tradeoff between lane count and per-lane bandwidth.

Where Each One Wins

The Intel Core i7-860 wins in every measured compute benchmark. Its 5-0 record in head-to-head tests covers both multi-core and single-core Cinebench workloads. The data shows a 9.3 percent lead in R15 multi-core, 9.4 percent in R20 multi-core, and 9.3 percent in R23 multi-core. The single-core results mirror this: 9.4 percent in R20 and 9.3 percent in R23. Any workload that resembles these rendering and 3D tasks will favor the Intel chip.

The AMD Athlon PRO 3045B wins in areas the benchmarks do not directly measure. It has a 15 TDP versus 95 TDP, making it far more power-efficient for mobile or compact systems. It supports DDR4 memory with a recorded 38.4 GB/s bandwidth, modern PCIe Gen 3, and ECC memory. Its integrated Radeon Vega graphics add display capabilities that the Intel chip lacks entirely. The AMD part is active production while Intel is end-of-life, suggesting ongoing availability.

For users who need maximum Cinebench scores and can tolerate a 95 TDP desktop platform with DDR3, the Intel Core i7-860 is the data-driven choice. For users who need integrated graphics, ECC support, low power consumption, and modern DDR4 memory, the AMD Athlon PRO 3045B provides those features, with the understanding that its compute performance trails by roughly 9 percent in every recorded test. The database shows two processors from different eras, and the older Intel design still holds a measurable performance edge.