AMD Ryzen 7 3700X vs Intel Core i7-12700KF Comparison

Head-to-Head Benchmarks

The benchmark database records a decisive sweep: the Intel Core i7-12700KF wins all 15 head-to-head test comparisons against the AMD Ryzen 7 3700X. There is no recorded test where the AMD processor takes the lead. The margins vary widely, from a modest 13.1% advantage in PassMark's find prime numbers test to a massive 124.2% gap in floating point math.

Starting with the single-thread tests, the Intel part shows a generational leap. In Cinebench R15 single-core, the i7-12700KF scores 410 against the Ryzen's 204, a 101% delta. Geekbench single-core shows a 41.6% advantage (2255 vs 1593), while PassMark single-thread records exactly a 50% improvement (3984 vs 2656). These results point to a fundamental per-core performance gap, not just a difference in core count.

Multi-threaded workloads tell a similar story, though with different magnitudes. Cinebench R15 multicore sees the Intel chip score 2906 versus 2092, a 38.9% lead. The Geekbench multicore result is even larger at 61.4% (14367 vs 8899). PassMark multithread shows a 51.8% gap (34092 vs 22458). The Intel processor's 12 cores and 20 threads outpace the AMD's 8 cores and 16 threads by a wide margin in every parallel test.

The most striking result in the entire comparison is PassMark floating point math, where the i7-12700KF scores 87449 against the Ryzen's 39005. That 124.2% delta is the single largest advantage recorded in any test. Integer math also favors Intel heavily at 71% (113521 vs 66399). Extended instructions, a proxy for AVX and other vector workloads, show a 48.9% gap (28650 vs 19241).

Real-world data tasks reinforce the pattern. PassMark data compression shows the Intel part at 441960 versus 296379, a 49.1% advantage. Data encryption is closer, with the i7-12700KF ahead by 22.7% (23181 vs 18900). Random string sorting, a test of memory and cache efficiency, sees Intel lead by 40.5% (45150 vs 32131). Physics simulation in PassMark shows a 50.7% gap (1780 vs 1181).

Where Each One Wins

Given the 15-0 win record, the use-case split is straightforward: the Intel Core i7-12700KF wins across every measured category. There is no benchmark category in the database where the AMD Ryzen 7 3700X records a victory. That includes single-threaded workloads, multi-threaded workloads, integer math, floating point math, encryption, compression, physics, and sorting.

For users prioritizing single-thread performance, such as older games or lightly threaded productivity apps, the i7-12700KF has a clear edge. The 101% delta in Cinebench R15 single-core and 50% in PassMark single-thread indicate that the Intel architecture delivers roughly 1.5 to 2 times the per-thread throughput of the Zen 2 design.

For heavily threaded workloads like video encoding, 3D rendering, or scientific computing, the Intel part leads by 38.9% to 61.4% depending on the benchmark. The floating point result is particularly important for compute-heavy tasks, where the 124.2% advantage means the i7-12700KF can complete FP workloads in roughly half the time.

The AMD Ryzen 7 3700X remains a capable desktop processor in its own right, sitting at the 84th percentile of all CPUs in the database. Its 8-core, 16-thread configuration and 65W TDP make it a power-efficient choice for users who do not need the peak performance of the Intel part. However, the recorded data shows no workload category where the Ryzen's efficiency translates into a performance win.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core i7-12700KF boosts to 5.00 GHz, while the AMD Ryzen 7 3700X boosts to 4.40 GHz. Both have a 3.60 GHz base clock.

Q: How much faster is the Intel chip in single-threaded Cinebench R15?

A: The i7-12700KF scores 410 in Cinebench R15 single-core, exactly double the Ryzen 7 3700X's 204, which is a 101% delta.

Q: What is the largest performance gap between the two processors?

A: The largest recorded delta is in PassMark floating point math, where the Intel chip scores 87449 versus 39005 for AMD, a 124.2% advantage.

Q: Does the AMD processor win any benchmark in the comparison?

A: No. The head-to-head database records 15 wins for the Intel Core i7-12700KF and 0 wins for the AMD Ryzen 7 3700X.

Q: How do their overall benchmark averages compare?

A: The Intel part has an average benchmark score of 35365, while the AMD part averages 34260. Both sit near the 85th and 84th percentiles of all CPUs, respectively.

Q: What memory types does each processor support?

A: The Intel Core i7-12700KF supports both DDR4 and DDR5, while the AMD Ryzen 7 3700X supports only DDR4. Both use a dual-channel memory bus.

Specification Differences

The two processors differ in nearly every core specification. The Intel Core i7-12700KF has 12 cores and 20 threads, compared to 8 cores and 16 threads on the AMD Ryzen 7 3700X. The Intel boost clock reaches 5.00 GHz versus 4.40 GHz for AMD, though both share a 3.60 GHz base clock.

Thermal design power is another major split: the Intel part is rated at 125W TDP, while the AMD part draws 65W. The socket interfaces are incompatible, with Intel using Socket 1700 and AMD using Socket AM4. The Intel processor carries a launch MSRP of $384, while the AMD processor launched at $329.

Cache hierarchies diverge as well. The Intel chip features 80 KB of L1 per core, 1.25 MB of L2 per core, and 25 MB of shared L3. The AMD chip has 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of L3. Memory bandwidth is listed only for the AMD part at 51.2 GB/s; no equivalent figure is recorded for the Intel part.

PCIe support differs: the Intel chip provides Gen 4 with 20 CPU lanes, while the AMD chip provides Gen 4 with 24 CPU lanes. Neither processor includes integrated graphics. Both have unlocked multipliers for overclocking. The Intel part was released on November 3, 2021, while the AMD part launched on July 6, 2019.

Architecture Differences

The Intel Core i7-12700KF is built on Alder Lake architecture, specifically the Alder Lake-S die, using Intel's 10 nm process node at Intel's own foundry. The die size is 215 mm². The AMD Ryzen 7 3700X uses Zen 2 architecture, codenamed Matisse, fabricated on TSMC's 7 nm process. The AMD die is 74 mm² and contains 3,800 million transistors; no transistor count is recorded for the Intel part.

These architectural choices explain much of the performance gap. The Intel Alder Lake design combines performance cores with efficiency cores, allowing the processor to reach 5.00 GHz on demanding single-threaded workloads while still offering 20 threads for parallel tasks. The Zen 2 design in the Ryzen 7 3700X uses a chiplet layout with a separate I/O die, which contributes to its smaller 74 mm² compute die but also caps its boost at 4.40 GHz.

The cache architecture reflects different design philosophies. Intel allocates 1.25 MB of L2 per core, which is generous for a desktop processor, while AMD uses 512 KB per core. AMD compensates with a larger 32 MB L3 pool versus Intel's 25 MB. The larger L3 on the AMD part helps in some memory-sensitive workloads, but the benchmark data shows the Intel part still wins the random string sorting test by 40.5%.

The Intel processor supports both DDR4 and DDR5 memory, giving platform flexibility, while the AMD part is limited to DDR4. The Intel part also uses a different power delivery approach, with a 125W TDP that allows sustained high clocks under load. The AMD part's 65W TDP makes it more power-efficient on paper, but the recorded benchmark results show the Intel part outperforming it in every measured test, including power-sensitive workloads like PassMark physics.

The 7 nm process on the AMD side provides a transistor density advantage, but the 10 nm Intel process combined with the higher boost clock and additional cores delivers superior performance in all recorded benchmarks. The Intel part's 20 lanes of PCIe Gen 4 are fewer than AMD's 24 lanes, but this does not appear in any benchmark gap. Both processors remain active in production, and both are unlocked for overclocking, though the data suggests the Intel part has significantly more headroom in raw throughput.