Intel Core i7-12700E vs Intel Pentium Gold G6400 Comparison

Head-to-Head Benchmarks

The benchmark data tells a one-sided story. Across every recorded head-to-head test, the Intel Core i7-12700E wins decisively. The Pentium Gold G6400 does not take a single benchmark in the comparison set.

The largest gaps appear in multi-core workloads. In Cinebench R23 multi-core, the i7-12700E scores 23879 against the G6400's 3030, a delta of 87.3% in favor of the i7. The same pattern holds in Cinebench R20 multi-core: 10029 versus 1272, again an 87.3% gap. Cinebench R15 multi-core shows 2406 against 305, matching the same 87.3% delta. Every multi-core result in the head-to-head set lands at the exact same 87.3% difference, which indicates the performance ratio is consistent across Cinebench versions.

Single-core performance is also dominated by the i7-12700E, though the percentage gap is identical. Cinebench R23 single-core scores 3371 for the i7 versus 427 for the Pentium, an 87.3% delta. Cinebench R20 single-core shows 1415 versus 179, also 87.3%. The i7's boost clock of 4.80 GHz likely explains part of this, but the data only records the scores, not the causal mechanism.

The Pentium Gold G6400's average benchmark score sits at 6969, while the i7-12700E averages 6776. This is a curious inversion: the Pentium has a higher average score despite losing every head-to-head test. The explanation lies in the benchmark sets. The Pentium's average draws from a broader range of PassMark tests, including integer math (13941), floating point math (8788), and data compression (62806). The i7-12700E's average is computed from only eight recorded tests, all Cinebench and Geekbench. The i7 does have a Geekbench multi-core score of 10676 and a single-core score of 2094, but those are not part of the head-to-head set. The averages are not directly comparable because they measure different workloads.

Percentile ranking reinforces the oddity. The Pentium Gold G6400 sits at the 63rd percentile of all CPUs, while the i7-12700E sits at the 62nd percentile. The Pentium's nearest rivals include the Intel Xeon Platinum 8260 (delta -0.3%), AMD Ryzen 3 3200G (delta 0.5%), and Intel Core i9-7980XE (delta -0.7%). The i7-12700E's nearest rivals include the AMD Ryzen Threadripper 2970WX (delta 0.2%), Intel Xeon Gold 6154 (delta -0.4%), and Intel Xeon Gold 5317 (delta 1%). Both chips occupy similar overall standing in the database despite the massive head-to-head deltas.

Architecture Differences

The two processors come from different Intel generations and use different manufacturing processes. The Pentium Gold G6400 is built on Comet Lake, a 14 nm architecture from Intel. The i7-12700E uses Alder Lake-S on Intel's 10 nm process. That process shrink is one of the major reasons for the i7's performance advantage, though the data does not quantify the specific contribution.

Core counts differ sharply. The Pentium Gold G6400 has 2 cores and 4 threads. The i7-12700E has 12 cores and 20 threads. That is a 6x core advantage and a 5x thread advantage. Multi-threaded workloads scale almost linearly with core count in many cases, which explains why the i7's Cinebench multi-core scores are roughly 8x higher, not merely 6x higher. The extra threads and architectural efficiency compound the core count lead.

Cache hierarchies are also different. The Pentium has 64 KB of L1 per core, 256 KB of L2 per core, and 4 MB of shared L3. The i7 has 80 KB of L1 per core, 1.25 MB of L2 per core, and 25 MB of shared L3. The L3 difference is substantial: 25 MB versus 4 MB. Larger shared cache helps with data reuse across cores, which matters in rendering and compilation workloads.

The i7-12700E also has a larger die at 215 mm². The Pentium's die size is not recorded in the database. The i7's base clock is 2.10 GHz with a boost clock of 4.80 GHz. The Pentium has a base clock of 4.00 GHz and no boost clock listed. The Pentium's higher base clock helps in lightly threaded tasks, but the i7's boost clock reaches far higher under load.

Memory support differs. The Pentium supports DDR4 only, while the i7 supports both DDR4 and DDR5. Both use dual-channel memory buses. The Pentium has a recorded memory bandwidth of 42.7 GB/s; the i7 has no bandwidth figure recorded. PCIe support also differs: the Pentium offers Gen 3 with 16 CPU lanes, while the i7 offers Gen 5 with 20 CPU lanes. The newer PCIe standard matters for storage and GPU bandwidth in modern systems.

Integrated graphics differ as well. The Pentium includes UHD Graphics 610, while the i7 includes UHD Graphics 770. Both are Intel integrated solutions, but the i7's is from a newer generation and is more capable, based on the architecture generation alone. Neither chip has an unlocked multiplier, so overclocking is not officially supported for either.

FAQ

Q: Which CPU is faster in Cinebench R23 multi-core?

A: The Intel Core i7-12700E scores 23879, which is 87.3% ahead of the Pentium Gold G6400's 3030.

Q: Does the Pentium Gold G6400 win any benchmark in the head-to-head set?

A: No. The i7-12700E wins all five recorded head-to-head tests, and the Pentium has zero wins.

Q: Which processor has more cores and threads?

A: The i7-12700E has 12 cores and 20 threads. The Pentium Gold G6400 has 2 cores and 4 threads.

Q: What memory types does each CPU support?

A: The Pentium Gold G6400 supports DDR4 only. The i7-12700E supports both DDR4 and DDR5.

Q: Do both CPUs have integrated graphics?

A: Yes. The Pentium Gold G6400 has UHD Graphics 610, and the i7-12700E has UHD Graphics 770.

Q: Which CPU has a higher average benchmark score?

A: The Pentium Gold G6400 has an average benchmark score of 6969, while the i7-12700E has 6776. This is because the two averages are computed from different benchmark sets, not because the Pentium is faster.

Specification Differences

The two processors differ in nearly every recorded specification category. The Pentium Gold G6400 has 2 cores and 4 threads; the i7-12700E has 12 cores and 20 threads. Base clocks are 4.00 GHz for the Pentium and 2.10 GHz for the i7. The i7 has a boost clock of 4.80 GHz, while the Pentium has no boost clock listed. Thermal design power is 58 watts for the Pentium and 65 watts for the i7.

Sockets differ: the Pentium uses Intel Socket 1200, while the i7 uses Intel Socket 1700. These are not interchangeable, meaning a motherboard upgrade is required to move between the two. The Pentium uses Comet Lake architecture on a 14 nm process. The i7 uses Alder Lake architecture on a 10 nm process with a 215 mm² die. The Pentium's die size is not recorded.

Cache layouts are different at every level. The Pentium has 64 KB L1 per core, 256 KB L2 per core, and 4 MB shared L3. The i7 has 80 KB L1 per core, 1.25 MB L2 per core, and 25 MB shared L3. Memory support is DDR4 for the Pentium and DDR4/DDR5 for the i7. The Pentium records 42.7 GB/s memory bandwidth; the i7 has no bandwidth figure.

PCIe capability differs: Gen 3 with 16 CPU lanes for the Pentium, Gen 5 with 20 CPU lanes for the i7. Integrated graphics are UHD Graphics 610 for the Pentium and UHD Graphics 770 for the i7. The i7 has a launch MSRP of $344. The Pentium has no recorded launch price. The i7's part number is SRL6D; the Pentium's is SRH3Y. The i7 belongs to the Core 12th Gen series with an Alder Lake-S codename; the Pentium is a Pentium Gold Comet Lake part. Both lack unlocked multipliers.

Where Each One Wins

The i7-12700E wins every benchmark category recorded in the head-to-head set. Multi-core rendering, single-core rendering, and all Cinebench workloads favor the i7 by the same 87.3% margin. For any workload that stresses the CPU, whether it is video encoding, 3D rendering, code compilation, or heavy multitasking, the data points squarely at the i7-12700E.

The Pentium Gold G6400's strengths are more subtle. Its higher base clock of 4.00 GHz means it can handle lightly threaded tasks without needing to boost. Its lower 58 watt TDP makes it a lower-power part than the i7's 65 watts, which could matter in compact builds with limited cooling. The Pentium's average benchmark score of 6969 is higher than the i7's 6776, but that is an artifact of different test sets rather than a real performance advantage. In PassMark integer math, the Pentium scores 13941, and in floating point math it scores 8788. Those are respectable numbers for a 2-core part, but they do not appear in the head-to-head comparison.

The i7-12700E's Geekbench scores, while not part of the head-to-head set, show a different workload: 10676 multi-core and 2094 single-core. These are not compared directly to the Pentium in the database, but they indicate the i7 has substantial headroom in general-purpose computing tasks. The i7 also supports DDR5 memory, which future-proofs a build, and offers PCIe Gen 5 connectivity for the fastest NVMe drives and GPUs.

For a casual user running office applications and web browsing, the Pentium Gold G6400 is sufficient. Its 4 threads and integrated graphics can handle everyday tasks. For anyone running multi-threaded applications, the i7-12700E is the only choice based on the recorded data. The 87.3% delta in every Cinebench test is not a small difference; it is a generational leap.

The Verdict

The data presents a clear hierarchy. The Intel Core i7-12700E is the superior processor in every head-to-head benchmark recorded. It wins all five tests with an 87.3% margin each time. It has 12 cores versus 2, 20 threads versus 4, 25 MB of L3 versus 4 MB, and a 4.80 GHz boost clock versus no boost clock at all. It supports newer memory and PCIe standards. Its launch MSRP is $344.

The Pentium Gold G6400 is not without merit. It has a higher base clock at 4.00 GHz, a lower TDP at 58 watts, and a higher average benchmark score due to its broader test set. It occupies the 63rd percentile of all CPUs, one point above the i7's 62nd percentile. For a basic desktop with light workloads, the Pentium gets the job done.

However, the recorded head-to-head data leaves no room for ambiguity. The i7-12700E is 87.3% ahead in every Cinebench test, both single-core and multi-core. That consistency across different Cinebench versions indicates a fundamental performance advantage, not a workload-specific fluke. The i7 also has a larger cache, more cores, and a more advanced 10 nm process node.

Buyers who need multi-threaded performance should choose the i7-12700E. Buyers who prioritize lower power consumption and are building on a tight thermal budget could consider the Pentium Gold G6400, but they should understand that it loses every recorded head-to-head benchmark. The database's percentile rankings place both chips within one point of each other, which suggests that for the average user, either CPU will perform adequately. For demanding workloads, the i7-12700E is the clear winner.