Intel Core 7 251E vs Intel Core Ultra 5 245T Comparison
Intel Core 7 251E
Core Ultra 5 245T
PERFORMANCE BENCHMARKS
Analysis: Intel Core 7 251E vs Intel Core Ultra 5 245T
Where Each One Wins
The recorded data draws a clean line between these two desktop processors. The Intel Core 7 251E is built around a 24-core, 32-thread configuration with a 5.60 GHz boost clock, while the Intel Core Ultra 5 245T uses 14 cores and 14 threads with a 5.10 GHz boost. That difference in thread count drives nearly every workload split.
For heavily parallel tasks, the Core 7 251E holds the structural advantage. Its 32 threads give it twice the logical concurrency of the Core Ultra 5 245T, which has no hyperthreading at all. Any workload that scales across cores will favor the 251E on paper. The Core Ultra 5 245T, by contrast, posts a higher base clock at 2.20 GHz versus 2.10 GHz, and it uses a newer 3 nm process from TSMC. The benchmark results show the Ultra 5 245T winning the single-threaded tests and the light-threaded PassMark suites, while the 251E has no recorded benchmark entries in the database to contest those scores.
The Core Ultra 5 245T sits at the 86th percentile of all CPUs, with an average benchmark score of 38,194. Its nearest rivals are tightly clustered: the AMD Ryzen 7 250 scores 38,221 for a delta of -0.1%, the Intel Core i5-14490F scores 38,149 for a delta of 0.1%, the Intel Core i5-13600HX scores 38,261 for a delta of -0.2%, and the Intel Core i5-13600KF scores 38,103 for a delta of 0.2%. That places the Ultra 5 245T in a very competitive band, effectively trading blows with those four chips within a fraction of a percent.
The Core 7 251E has no benchmarks and no nearest rivals recorded, so it cannot be ranked against the Ultra 5 245T in the database. The only quantitative comparison comes from the specification sheet and the Ultra 5 245T's own benchmark results.
FAQ
Q: Which processor has more cores and threads?
A: The Intel Core 7 251E has 24 cores and 32 threads. The Intel Core Ultra 5 245T has 14 cores and 14 threads, meaning it does not use simultaneous multithreading.
Q: What are the boost clock speeds of each chip?
A: The Core 7 251E boosts to 5.60 GHz, while the Core Ultra 5 245T boosts to 5.10 GHz. The Ultra 5 245T has a higher base clock at 2.20 GHz versus 2.10 GHz for the 251E.
Q: How does the Core Ultra 5 245T compare to its nearest rivals?
A: The Core Ultra 5 245T has an average benchmark score of 38,194. The AMD Ryzen 7 250 scores 38,221 (-0.1%), the Intel Core i5-14490F scores 38,149 (+0.1%), the Intel Core i5-13600HX scores 38,261 (-0.2%), and the Intel Core i5-13600KF scores 38,103 (+0.2%).
Q: Which processor has a larger L3 cache?
A: The Core 7 251E has 36 MB of shared L3 cache. The Core Ultra 5 245T has 24 MB of shared L3 cache.
Q: Do both processors support ECC memory?
A: Yes, both the Core 7 251E and the Core Ultra 5 245T support ECC memory.
Q: What integrated graphics do these processors use?
A: The Core 7 251E uses Intel UHD Graphics 770. The Core Ultra 5 245T uses Arc Xe-LPG Graphics 64EU.
Head-to-Head Benchmarks
The database contains no direct head-to-head benchmark entries between the Core 7 251E and the Core Ultra 5 245T. The Core 7 251E has no recorded benchmark scores at all. All comparative analysis must therefore rely on the Core Ultra 5 245T's full benchmark suite, which covers Cinebench and PassMark workloads.
The Core Ultra 5 245T delivers a Cinebench R23 multi-core score of 26,208 and a single-core score of 3,699. In Cinebench R20, it scores 11,007 multi-core and 1,553 single-core. The older Cinebench R15 run shows 2,641 multi-core and 372 single-core. These results place it among mainstream desktop parts, and the percentile data confirms that: 86th percentile among all CPUs.
PassMark results for the Ultra 5 245T show 30,833 in multithread, 4,367 in single-thread, 88,676 in integer math, 108,499 in floating point math, 22,071 in extended instructions, 23,656 in data encryption, 283,812 in data compression, 34,931 in random string sorting, 324 in find prime numbers, and 2,278 in physics. The data compression score stands out as the strongest relative result, while the prime number search is the weakest.
Since the Core 7 251E has no benchmark scores in the database, the only measurable wins belong to the Core Ultra 5 245T. The 251E's advantage is entirely speculative, based on its 32 threads and higher boost clock. Without recorded measurements, the database cannot confirm any workload where the 251E would outperform the Ultra 5 245T.
What the data does show is that the Ultra 5 245T is a well-rounded performer in its peer group. Its average benchmark score of 38,194 puts it within 0.2% of four different rivals, which indicates that small application-level differences will decide wins in real workloads. The Core 7 251E, with no score and no percentile rank, cannot be positioned on the same scale.
Specification Differences
The two processors differ across nearly every major specification field. The Core 7 251E uses 24 cores and 32 threads, while the Core Ultra 5 245T uses 14 cores and 14 threads. Base clocks are close: 2.10 GHz for the 251E and 2.20 GHz for the Ultra 5 245T. Boost clocks favor the 251E at 5.60 GHz versus 5.10 GHz.
Both chips carry a 65 W TDP. Sockets differ completely: the 251E uses Intel Socket 1700, while the Ultra 5 245T uses Intel Socket 1851. The 251E supports both DDR4 and DDR5 memory, while the Ultra 5 245T supports DDR5 only. Both use dual-channel memory buses, but the memory bandwidth differs: 89.6 GB/s for the 251E and 102.4 GB/s for the Ultra 5 245T.
PCIe lanes also differ. The 251E provides Gen 5 with 16 lanes (CPU only), while the Ultra 5 245T provides Gen 5 with 20 lanes (CPU only). Integrated graphics are different as well: UHD Graphics 770 on the 251E versus Arc Xe-LPG Graphics 64EU on the Ultra 5 245T.
Cache hierarchies diverge significantly. The 251E has 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The Ultra 5 245T has 192 KB of L1 per core, 3 MB of L2 per core, and 24 MB of shared L3. The larger L3 on the 251E contrasts with the larger per-core L1 and L2 on the Ultra 5 245T.
Die size and process node are also distinct. The 251E uses a 10 nm Intel process with a 257 mm² die. The Ultra 5 245T uses a 3 nm TSMC process with a 243 mm² die and a transistor count of 17,800 million. The Ultra 5 245T also has a different part number (SRVFF) and release date (2025-01-06) compared to the 251E (release date 2025-01-12, part number SRQDUQ657).
Neither processor has an unlocked multiplier. Both are listed as Active in production status and are aimed at the Desktop market segment. Launch MSRP for the Core 7 251E is $384. Launch MSRP for the Core Ultra 5 245T is $270.
Architecture Differences
The Core 7 251E is built on Bartlett Lake, a 10 nm Intel process with a 257 mm² die. The Core Ultra 5 245T is built on Arrow Lake-S, which is part of the Core Ultra Series 2 and uses a 3 nm TSMC process with a 243 mm² die and 17,800 million transistors. This is a fundamental split in foundry and node generation: Intel's older node for the 251E versus TSMC's advanced 3 nm node for the Ultra 5 245T.
The core count difference reflects a design philosophy shift. The 251E offers 24 cores and 32 threads, relying on simultaneous multithreading to boost throughput. The Ultra 5 245T offers 14 cores and 14 threads, with no multithreading, meaning each core handles exactly one thread. The newer process node on the Ultra 5 245T allows for higher per-core efficiency, which shows in its single-thread benchmark results.
Cache architecture also reflects the generational change. The Ultra 5 245T uses a larger per-core L1 (192 KB) and L2 (3 MB), while the 251E uses smaller per-core allocations (80 KB L1, 2 MB L2) but a larger shared L3 pool (36 MB versus 24 MB). This suggests the Ultra 5 245T is optimized for per-core locality and low-latency access, while the 251E leans on a bigger last-level cache for its many threads.
Memory support differs in kind, not just capacity. The 251E retains DDR4 compatibility alongside DDR5, which makes it a drop-in option for older Socket 1700 platforms. The Ultra 5 245T commits to DDR5 only, matching its newer Socket 1851 platform. Memory bandwidth favors the Ultra 5 245T at 102.4 GB/s versus 89.6 GB/s for the 251E.
PCIe connectivity also moves forward with the Ultra 5 245T, which exposes 20 Gen 5 lanes versus 16 on the 251E. The integrated graphics differ as well: the 251E uses the older UHD Graphics 770, while the Ultra 5 245T uses Arc Xe-LPG Graphics 64EU, which represents a newer GPU architecture.
The production status for both is Active, and both were released in January 2025, with the Ultra 5 245T arriving on January 6 and the 251E on January 12. Neither processor has an unlocked multiplier, so overclocking is not a supported feature on either part. The architecture split is clear: Bartlett Lake on Intel 10 nm for the 251E, Arrow Lake on TSMC 3 nm for the Ultra 5 245T, with the newer node delivering higher memory bandwidth, more PCIe lanes, and a more modern integrated GPU on the Ultra 5 245T.