AMD Ryzen 7 PRO 8840U vs Intel Core 7 251E Comparison

FAQ

Q: How does the AMD Ryzen 7 PRO 8840U compare to the Intel Core 7 251E in core count?

A: The AMD Ryzen 7 PRO 8840U has 8 cores and 16 threads, while the Intel Core 7 251E has 24 cores and 32 threads. This gives the Intel part a 3x advantage in core count and a 2x advantage in thread count.

Q: Which processor has the higher boost clock speed?

A: The Intel Core 7 251E boosts to 5.60 GHz, which is higher than the AMD Ryzen 7 PRO 8840U's 5.10 GHz boost. The AMD part has a higher base clock at 3.30 GHz versus 2.10 GHz for Intel.

Q: What process nodes do these CPUs use?

A: The AMD Ryzen 7 PRO 8840U is built on TSMC's 4 nm process, while the Intel Core 7 251E uses Intel's 10 nm process. The AMD part also has a smaller die size at 178 mm² versus 257 mm² for Intel.

Q: Which processor supports PCIe Gen 5?

A: The Intel Core 7 251E supports PCIe Gen 5 with 16 lanes (CPU only), while the AMD Ryzen 7 PRO 8840U uses PCIe Gen 4 with 20 lanes (CPU only). This gives Intel a newer PCIe generation but fewer lanes.

Q: What is the market segment for each chip?

A: The AMD Ryzen 7 PRO 8840U is a mobile processor, while the Intel Core 7 251E is a desktop processor. The Intel part has a 65 W TDP versus 28 W for the AMD chip.

Q: Do both CPUs support ECC memory?

A: Yes, both the AMD Ryzen 7 PRO 8840U and the Intel Core 7 251E support ECC memory. Both also use dual-channel memory with 89.6 GB/s bandwidth, though AMD supports only DDR5 while Intel supports both DDR4 and DDR5.

Where Each One Wins

The AMD Ryzen 7 PRO 8840U has a decisive advantage in the recorded benchmark data. It holds an 83rd percentile ranking among all CPUs, while the Intel Core 7 251E sits at the 50th percentile. The AMD part's average benchmark score is 32,233, whereas the Intel chip's average benchmark score is 0, meaning no benchmark results are recorded for it in the database.

The AMD Ryzen 7 PRO 8840U wins in every single-core and multi-core workload that has been measured. Its Cinebench R23 multi-core score of 20,254 and single-core score of 2,859 demonstrate strong all-around compute capability. PassMark results reinforce this, with the AMD chip scoring 23,850 in multithread, 3,641 in single thread, 88,339 in integer math, and 50,746 in floating point math.

The Intel Core 7 251E has no recorded wins because there are no benchmark entries for it. The data shows the AMD part as the only measured performer between the two. The Intel chip's strengths are structural: it has more cores and threads, a higher boost clock, PCIe Gen 5 support, and a larger L3 cache. However, none of these advantages are verified by benchmark scores in the database.

For workloads that depend on raw core count and thread parallelism, the Intel Core 7 251E may have theoretical potential, but the lack of measured data means it cannot be confirmed. The AMD Ryzen 7 PRO 8840U is the only chip with actual performance numbers, and those numbers place it in the top 17% of all CPUs.

Architecture Differences

The AMD Ryzen 7 PRO 8840U uses Zen 4 architecture with the codename Hawk Point, part of the 8000 series. It is built on TSMC's 4 nm process with 25,000 million transistors on a 178 mm² die. Cache distribution is 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3.

The Intel Core 7 251E uses Bartlett Lake architecture with the codename Bartlett Lake, part of the Core 7 generation. It is built on Intel's 10 nm process with a 257 mm² die size. Cache distribution is 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3. The transistor count is not recorded for this chip.

The AMD part integrates Radeon 780M graphics, while the Intel chip uses UHD Graphics 770. Both support ECC memory, but the AMD chip supports only DDR5 while the Intel chip supports both DDR4 and DDR5. The AMD part uses AMD Socket FP7, and the Intel chip uses Intel Socket 1700.

The process node difference is significant: 4 nm for AMD versus 10 nm for Intel. The AMD die is smaller at 178 mm² versus 257 mm², and it packs 25,000 million transistors, a figure not recorded for Intel. The Intel part has larger L1 and L2 per core and more than double the L3 cache, which may help in cache-sensitive workloads.

The AMD chip is a mobile part with a 28 W TDP, while the Intel chip is a desktop part with a 65 W TDP. This reflects different design targets: the AMD chip prioritizes efficiency for laptops, and the Intel chip prioritizes desktop performance headroom.

Specification Differences

The two processors differ in nearly every core specification. The AMD Ryzen 7 PRO 8840U has 8 cores and 16 threads, while the Intel Core 7 251E has 24 cores and 32 threads. Base clocks are 3.30 GHz for AMD and 2.10 GHz for Intel. Boost clocks are 5.10 GHz for AMD and 5.60 GHz for Intel.

TDP differs substantially: 28 W for AMD versus 65 W for Intel. The AMD chip uses AMD Socket FP7, and the Intel chip uses Intel Socket 1700. Process nodes are 4 nm for AMD and 10 nm for Intel. The AMD foundry is TSMC, and the Intel foundry is Intel.

Cache configurations differ: AMD has 64 KB L1 per core, 1 MB L2 per core, and 16 MB shared L3. Intel has 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3. Memory support differs: AMD supports DDR5 only, Intel supports DDR4 and DDR5. Both have dual-channel memory buses with 89.6 GB/s bandwidth.

PCIe support differs: AMD has Gen 4 with 20 lanes (CPU only), Intel has Gen 5 with 16 lanes (CPU only). Integrated graphics differ: AMD uses Radeon 780M, Intel uses UHD Graphics 770. The AMD part is a mobile processor, and the Intel part is a desktop processor.

The AMD chip's release date is 2024-04-15, and the Intel chip's release date is 2025-01-12. The Intel part has a launch MSRP of $384, while the AMD part has no recorded launch MSRP. Both processors have locked multipliers, meaning they are not unlocked for overclocking. The AMD part number is 100-000001317(FP7r2),100-000001377(FP7), and the Intel part number is SRQDUQ657.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the AMD Ryzen 7 PRO 8840U and the Intel Core 7 251E. The Intel Core 7 251E has an empty benchmark array, an average benchmark score of 0, and no nearest rivals. The AMD Ryzen 7 PRO 8840U has 17 recorded benchmark scores covering Cinebench and PassMark workloads.

The AMD part's Cinebench results show strong performance across versions: R15 multi-core scores 2,041, R15 single-core scores 288, R20 multi-core scores 8,506, R20 single-core scores 1,200, R23 multi-core scores 20,254, and R23 single-core scores 2,859. These scores show consistent scaling from older to newer Cinebench versions.

PassMark results for the AMD chip cover a wide range of workloads. Data compression scores 272,664, data encryption scores 16,441, extended instructions score 19,132, find prime numbers scores 76, floating point math scores 50,746, integer math scores 88,339, multithread scores 23,850, physics scores 1,174, random string sorting scores 33,109, and single thread scores 3,641.

The AMD chip's nearest rivals in the database are all Intel parts: the Core i9-11900 with an average score of 32,226 and a delta of 0%, the Core i5-14400F with an average score of 32,279 and a delta of -0.1%, the Core i7-12800H with an average score of 32,121 and a delta of 0.3%, and the Core i5-14400 with an average score of 32,115 and a delta of 0.4%. These deltas indicate the AMD chip is within a fraction of a percent of these four Intel processors in average benchmark score.

Since the Intel Core 7 251E has no benchmark data, no direct comparison can be made. The recorded data only establishes the AMD Ryzen 7 PRO 8840U as a measurable performer with an 83rd percentile ranking. The Intel chip's 50th percentile ranking and zero average score indicate no verified performance data exists for it.

The Verdict

The data clearly favors the AMD Ryzen 7 PRO 8840U in terms of measured performance. It has a complete benchmark profile with an 83rd percentile ranking, while the Intel Core 7 251E has no recorded benchmarks and sits at the 50th percentile with an average score of zero. For any buyer or system builder relying on verified performance numbers, the AMD chip is the only option with evidence of capability.

The AMD Ryzen 7 PRO 8840U is a mobile processor with 8 cores, 16 threads, a 5.10 GHz boost clock, and a 28 W TDP. Its Cinebench R23 scores of 20,254 multi-core and 2,859 single-core place it among solid performers. PassMark scores confirm strength in integer math, floating point math, and multithread workloads. The chip's nearest rivals are all Intel desktop and mobile parts within 0.4% of its average score, which shows it competes effectively with several mainstream Intel options.

The Intel Core 7 251E has structural advantages on paper: 24 cores, 32 threads, a 5.60 GHz boost clock, PCIe Gen 5 support, and 36 MB of L3 cache. It is a desktop part with a 65 W TDP and a launch MSRP of $384. However, none of these specifications are validated by benchmark results in the database. The absence of measured performance means the Intel chip cannot be recommended on the basis of data.

For mobile workloads, the AMD Ryzen 7 PRO 8840U is the logical choice because it is the only chip with recorded performance and a mobile form factor. For desktop workloads, the Intel Core 7 251E has more cores and a higher boost clock, but without benchmark scores, its real-world performance remains unverified. The database shows one clear measured winner: the AMD Ryzen 7 PRO 8840U.