Intel Core 7 251E vs Intel Core Ultra 7 270K Plus Comparison

Head-to-Head Benchmarks

The Intel Core Ultra 7 270K Plus enters the database with a substantial benchmark footprint, while the Intel Core 7 251E has no recorded benchmark scores. The data shows that the Core Ultra 7 270K Plus sits at the 96th percentile among all CPUs tracked, with an average benchmark score of 93,785. The Core 7 251E, by contrast, holds only the 50th percentile with an average score of zero, indicating that no standardized measurements have been recorded for it yet.

Because the Core 7 251E lacks any benchmark entries, all head-to-head comparisons must rely on the Core Ultra 7 270K Plus's recorded performance and its position against other processors. The Intel Core Ultra 7 270K Plus delivers a Cinebench R23 multi-core score of 44,253 and a single-core score of 2,439. In Cinebench R20, it records 24,461 multi-core and 3,453 single-core. The older Cinebench R15 test shows 6,656 multi-core and 354 single-core.

PassMark results further characterize the Core Ultra 7 270K Plus. The multithread score is 68,574, while single-thread performance registers at 5,068. Data compression work scores 804,322, and data encryption reaches 59,097. Extended instruction performance hits 63,506, floating point math scores 229,491, and integer math scores 175,986. The processor also records 4,064 in physics tests, 96,945 in random string sorting, and 615 in prime number finding.

The nearest rivals in the database for the Core Ultra 7 270K Plus include the Intel Xeon 6520P, which scores 93,786 and matches the Core Ultra at a 0 percent delta. The AMD EPYC 4564P scores 95,183, which is 1.5 percent higher. The AMD EPYC 9175F scores 95,615, 1.9 percent higher, and the AMD EPYC 4565P scores 95,764, 2.1 percent higher. These deltas place the Core Ultra 7 270K Plus slightly behind a cluster of high-end server processors, but the differences are narrow, all within roughly two percent.

The Core 7 251E has no head-to-head benchmark wins, and the Core Ultra 7 270K Plus also has no recorded wins in this specific pairing because no comparative benchmarks exist. The practical interpretation is straightforward: the database contains no performance data for the Core 7 251E, so any quantitative comparison between these two specific parts is impossible from the recorded information. The Core Ultra 7 270K Plus stands as the only one of the two with verified workload results.

Architecture Differences

The two processors diverge sharply at the architectural level. The Intel Core 7 251E uses the Bartlett Lake codename and is built on a 10 nm process by Intel, with a die size of 257 mm². The Intel Core Ultra 7 270K Plus, part of the Core Ultra Series 2, uses the Arrow Lake Refresh codename and is manufactured on a 3 nm process by TSMC, with a die size of 243 mm² and 17,800 million transistors. The process node difference is significant: 10 nm versus 3 nm indicates a much denser, more advanced manufacturing technology for the Core Ultra part.

Both CPUs have 24 cores, but thread counts differ. The Core 7 251E supports 32 threads, while the Core Ultra 7 270K Plus supports 24 threads. This means the Core 7 251E enables simultaneous multithreading, effectively adding eight extra logical threads, whereas the Core Ultra 7 270K Plus does not appear to enable SMT, leaving it with one thread per core.

Cache hierarchies also differ. The Core 7 251E has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 36 MB of shared L3 cache. The Core Ultra 7 270K Plus has 192 KB of L1 per core, 3 MB of L2 per core, and the same 36 MB of shared L3. The Core Ultra part provides more than double the L1 cache per core and 50 percent more L2 per core, which can benefit latency-sensitive workloads.

Memory support shows another split. The Core 7 251E supports both DDR4 and DDR5 memory, while the Core Ultra 7 270K Plus supports only DDR5. Both use a dual-channel memory bus. Memory bandwidth differs: the Core 7 251E records 89.6 GB/s, while the Core Ultra 7 270K Plus records 115.2 GB/s, a 28.6 percent higher figure. Both support ECC memory.

PCIe connectivity also differs. The Core 7 251E provides Gen 5 with 16 lanes from the CPU, while the Core Ultra 7 270K Plus provides Gen 5 with 20 lanes from the CPU, giving the latter four additional CPU-attached lanes.

Integrated graphics represent a notable generational shift. The Core 7 251E uses UHD Graphics 770, while the Core Ultra 7 270K Plus uses Arc Xe-LPG Graphics 64EU. The Arc branding indicates a newer graphics architecture with dedicated execution units, though the database provides no direct performance comparison between these iGPUs.

Clock speeds differ as well. The Core 7 251E has a base clock of 2.10 GHz and a boost clock of 5.60 GHz. The Core Ultra 7 270K Plus has a base clock of 3.70 GHz and a boost clock of 5.50 GHz. The Core Ultra part has a 76 percent higher base clock, while the Core 7 part has a slightly higher boost clock by 0.10 GHz.

Power and socket configurations are distinct. The Core 7 251E has a TDP of 65 watts and fits Intel Socket 1700. The Core Ultra 7 270K Plus has a TDP of 125 watts and fits Intel Socket 1851. The Core Ultra part draws nearly double the thermal budget, consistent with its higher base clock and larger thread-independent core design. The Core Ultra 7 270K Plus has an unlocked multiplier, while the Core 7 251E does not.

Release timing also separates the two. The Core 7 251E entered production with an active status and a release date of 2025-01-12. The Core Ultra 7 270K Plus also holds active production status with a release date of 2026-03-10. Both are current products, but the Core 7 251E precedes the Core Ultra 7 270K Plus by roughly 14 months.

The Verdict

The recorded data supports a clear distinction. The Intel Core Ultra 7 270K Plus is the only one of the two with any benchmark results, and those results place it at the 96th percentile of all CPUs in the database. The Intel Core 7 251E has no benchmark scores at all, leaving it at the 50th percentile by default, which is not a meaningful performance position but simply reflects missing data.

For multi-threaded and single-threaded workloads alike, the Core Ultra 7 270K Plus delivers verified scores across Cinebench and PassMark suites. Its nearest rivals, including the Intel Xeon 6520P, AMD EPYC 4564P, AMD EPYC 9175F, and AMD EPYC 4565P, are all close in average score, with the Core Ultra trailing by between 1.5 and 2.1 percent against the AMD parts and matching the Xeon exactly. This indicates the Core Ultra 7 270K Plus performs in the upper echelon of desktop-class processors, competitive with server-grade silicon in aggregate workload throughput.

The Core 7 251E offers a lower TDP of 65 watts versus 125 watts, and it supports DDR4 memory in addition to DDR5, which could make it more flexible for older platforms. It also has a higher boost clock of 5.60 GHz versus 5.50 GHz, and more threads at 32 versus 24. However, without any benchmark scores in the database, these specifications cannot be translated into measured performance. The Core 7 251E also uses an older 10 nm process, while the Core Ultra 7 270K Plus uses 3 nm, and the latter has more L1 and L2 cache per core, higher memory bandwidth, more PCIe lanes, and a newer integrated graphics solution.

The database indicates that a user prioritizing measured performance, newer architecture, higher memory bandwidth, and unlocked overclocking would look to the Core Ultra 7 270K Plus. A user prioritizing lower power draw, DDR4 compatibility, and a higher boost clock would consider the Core 7 251E, but with the caveat that no benchmark data exists to support its performance claims. The Core Ultra 7 270K Plus also carries a launch MSRP of $299, while the Core 7 251E carries a launch MSRP of $384, though the pricing context is limited to those stated figures.

Specification Differences

The two processors differ across several recorded specification fields.

Cores and threads: Both have 24 cores. The Core 7 251E has 32 threads, the Core Ultra 7 270K Plus has 24 threads.

Base clock: The Core 7 251E runs at 2.10 GHz, the Core Ultra 7 270K Plus at 3.70 GHz.

Boost clock: The Core 7 251E boosts to 5.60 GHz, the Core Ultra 7 270K Plus to 5.50 GHz.

TDP: The Core 7 251E is rated at 65 watts, the Core Ultra 7 270K Plus at 125 watts.

Socket: The Core 7 251E uses Intel Socket 1700, the Core Ultra 7 270K Plus uses Intel Socket 1851.

Codename: The Core 7 251E is Bartlett Lake, the Core Ultra 7 270K Plus is Arrow Lake Refresh.

Process node: The Core 7 251E is 10 nm, the Core Ultra 7 270K Plus is 3 nm.

Foundry: The Core 7 251E is fabricated by Intel, the Core Ultra 7 270K Plus by TSMC.

Transistors: The Core 7 251E has no recorded transistor count, the Core Ultra 7 270K Plus has 17,800 million.

Die size: The Core 7 251E measures 257 mm², the Core Ultra 7 270K Plus measures 243 mm².

L1 cache: The Core 7 251E has 80 KB per core, the Core Ultra 7 270K Plus has 192 KB per core.

L2 cache: The Core 7 251E has 2 MB per core, the Core Ultra 7 270K Plus has 3 MB per core.

L3 cache: Both have 36 MB shared.

Memory support: The Core 7 251E supports DDR4 and DDR5, the Core Ultra 7 270K Plus supports DDR5 only.

Memory bandwidth: The Core 7 251E records 89.6 GB/s, the Core Ultra 7 270K Plus records 115.2 GB/s.

PCIe: The Core 7 251E provides Gen 5, 16 lanes, the Core Ultra 7 270K Plus provides Gen 5, 20 lanes.

Integrated graphics: The Core 7 251E uses UHD Graphics 770, the Core Ultra 7 270K Plus uses Arc Xe-LPG Graphics 64EU.

Multiplier unlocked: The Core 7 251E is locked, the Core Ultra 7 270K Plus is unlocked.

Release date: The Core 7 251E released 2025-01-12, the Core Ultra 7 270K Plus released 2026-03-10.

Launch MSRP: The Core 7 251E has a launch MSRP of $384, the Core Ultra 7 270K Plus has a launch MSRP of $299.

Part number: The Core 7 251E is SRQDUQ657, the Core Ultra 7 270K Plus is SA4V6.

FAQ

Q: Which processor has more threads?

A: The Intel Core 7 251E has 32 threads, while the Intel Core Ultra 7 270K Plus has 24 threads, despite both having 24 cores.

Q: What benchmark scores does the Core 7 251E have?

A: The database records no benchmark scores for the Core 7 251E. Its average benchmark score is zero, and it holds the 50th percentile among all CPUs.

Q: How does the Core Ultra 7 270K Plus compare to its nearest rivals?

A: The Core Ultra 7 270K Plus has an average benchmark score of 93,785. It matches the Intel Xeon 6520P at a 0 percent delta, trails the AMD EPYC 4564P by 1.5 percent, the AMD EPYC 9175F by 1.9 percent, and the AMD EPYC 4565P by 2.1 percent.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core 7 251E and the Intel Core Ultra 7 270K Plus support ECC memory.

Q: What is the process node difference between the two?

A: The Intel Core 7 251E is built on a 10 nm process by Intel, while the Intel Core Ultra 7 270K Plus is built on a 3 nm process by TSMC.

Q: What integrated graphics does each processor use?

A: The Intel Core 7 251E uses UHD Graphics 770, while the Intel Core Ultra 7 270K Plus uses Arc Xe-LPG Graphics 64EU.

Q: Which processor has a higher boost clock?

A: The Intel Core 7 251E has a boost clock of 5.60 GHz, which is 0.10 GHz higher than the Intel Core Ultra 7 270K Plus's boost clock of 5.50 GHz.