Intel Core i7-14701E vs Intel Core Ultra 7 256V Comparison

Head-to-Head Benchmarks

The benchmark data shows a decisive overall victory for the Intel Core i7-14701E, which wins 16 of the 17 recorded head-to-head comparisons. The Core Ultra 7 256V takes a single win, making the performance gap between these two processors both broad and deep.

The largest margin appears in Cinebench R23 multi-core, where the i7-14701E scores 22195 against 10399 for the Ultra 7 256V, a 113.4% advantage. This result indicates that the desktop part delivers more than double the sustained multi-threaded rendering performance of the mobile chip. The Cinebench R20 multi-core test tells a similar story: 9321 versus 6958, a 34% lead. Even in the lighter Cinebench R15 multi-core workload, the i7-14701E leads by 41.3%, with scores of 2237 and 1583.5.

Single-core results also favor the i7-14701E, though by smaller margins. In Cinebench R23 single-core, the desktop chip scores 3133 against 1877.5, a 66.9% advantage. Cinebench R20 single-core shows a 33.9% lead (1315 versus 982), while Cinebench R15 single-core shows a more modest 10.3% edge (315 versus 285.5). The PassMark single-thread test shows the narrowest gap among the single-core metrics: 4305 versus 4029, a 6.9% lead for the i7-14701E.

Integer math workloads expose another massive difference. The PassMark integer math score for the i7-14701E is 81325, versus 43358 for the Ultra 7 256V, a 87.6% advantage. Data compression also heavily favors the desktop part: 282939 versus 184985, a 53% lead. The physics test shows a 50.4% gap (2399 versus 1595), and random string sorting shows a 29.7% difference (29158 versus 22481).

The Ultra 7 256V's only victory comes in the PassMark find prime numbers test, where it scores 192 against 176 for the i7-14701E, an 8.3% edge. This single win suggests that the Lunar Lake architecture has a specific strength in prime number calculation, but it does not compensate for the broad deficits elsewhere. The closest overall margins are in data encryption (6.2% for the i7-14701E), floating-point math (5.6% for the i7-14701E), and single-thread performance (6.9% for the i7-14701E).

Where Each One Wins

The Intel Core i7-14701E is the clear winner in nearly every workload category recorded. Its 16 wins span rendering, math operations, compression, encryption, physics simulation, and general multi-threaded tasks. The Cinebench suite shows that the desktop part is particularly strong in all forms of CPU rendering, with the R23 multi-core result being the standout. For workloads that depend on integer arithmetic, such as database operations, financial modeling, or scientific computing, the 87.6% lead in integer math makes the i7-14701E the more capable processor.

The Ultra 7 256V wins only in the find prime numbers test, which typically exercises the CPU's ability to handle iterative divisibility checks with minimal data reuse. This suggests a specific architectural strength in certain algorithmic patterns, but the scope of this advantage is narrow. In every other measured category, the i7-14701E delivers higher scores, often by substantial margins.

The average benchmark score for the i7-14701E is 33206, placing it at the 83rd percentile among all CPUs. The Ultra 7 256V has an average score of 21112, placing it at the 75th percentile. The nearest rivals for the i7-14701E include the AMD Ryzen 9 PRO 6950H (average score 33201, 0% delta), the AMD Ryzen 5 8645HS (33244, -0.1%), the AMD Ryzen 7 7745HX (33091, 0.3%), and the Intel Core i7-13650HX (33089, 0.4%). For the Ultra 7 256V, the nearest rivals are the AMD Ryzen 5 7530U (21133, -0.1%), the AMD Ryzen 5 5600G (21088, 0.1%), the Intel Core i3-1220P (21066, 0.2%), and the Intel Core Ultra 7 155U (21174, -0.3%). These comparisons show that each processor is closely matched with its own competitive set, but the two chips occupy very different performance tiers.

Architecture Differences

The architectural gap between these two processors is substantial. The Intel Core i7-14701E uses the Raptor Lake architecture, specifically the Raptor Lake-R refresh, built on a 10 nm process node at Intel's own foundry. The Intel Core Ultra 7 256V uses the Lunar Lake architecture, built on a 3 nm process node at TSMC. This process difference is significant: the Lunar Lake chip uses a much more advanced manufacturing technology, which contributes to its dramatically lower power consumption.

The core counts are identical at 8, but the thread counts differ. The i7-14701E supports 16 threads, meaning it has hyperthreading enabled, while the Ultra 7 256V supports only 8 threads. This doubling of threads is a primary reason for the i7-14701E's large multi-core advantages. The desktop part also has a higher base clock of 2.60 GHz and a higher boost clock of 5.40 GHz, compared to 2.20 GHz base and 4.80 GHz boost for the mobile chip.

Cache hierarchies differ substantially. The i7-14701E has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 33 MB of shared L3 cache. The Ultra 7 256V has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, but only 12 MB of shared L3 cache. The larger L3 cache on the desktop part is notable for workloads with high data reuse across cores.

Memory support also differs. The i7-14701E supports both DDR4 and DDR5 memory, while the Ultra 7 256V's memory support is listed as unknown and dependent on the motherboard. Both use dual-channel memory buses. ECC memory is supported on the i7-14701E but not on the Ultra 7 256V.

PCIe lane counts differ significantly. The i7-14701E provides 16 Gen 5 lanes from the CPU, while the Ultra 7 256V provides only 4 Gen 5 lanes. This makes the desktop part much more suitable for setups with multiple high-bandwidth devices such as discrete GPUs and NVMe storage.

The integrated graphics differ as well. The i7-14701E uses UHD Graphics 770, while the Ultra 7 256V uses Arc 140V. The Arc 140V is a more modern GPU architecture, though the benchmark data in this database does not include graphics performance metrics.

Specification Differences

The two processors differ across several key specification fields. The i7-14701E has 16 threads versus 8 threads for the Ultra 7 256V. Base clocks are 2.60 GHz versus 2.20 GHz, and boost clocks are 5.40 GHz versus 4.80 GHz. The TDP ratings show a large gap: 65 watts for the i7-14701E versus 17 watts for the Ultra 7 256V. This power difference is expected given the desktop versus mobile market segments.

The sockets differ completely. The i7-14701E uses Intel Socket 1700, a desktop platform, while the Ultra 7 256V uses Intel BGA 2833, a soldered mobile package. The process nodes are 10 nm for the i7-14701E and 3 nm for the Ultra 7 256V, with the latter built by TSMC rather than Intel's own foundry.

Cache configurations differ in every level. L1 cache is 80 KB per core for the i7-14701E versus 192 KB per core for the Ultra 7 256V. L2 cache is 2 MB per core versus 2.5 MB per core. L3 cache is 33 MB shared versus 12 MB shared. The i7-14701E supports ECC memory; the Ultra 7 256V does not. The die size is 257 mm² for the i7-14701E, while the Ultra 7 256V has no recorded die size.

Release dates differ by several months. The i7-14701E was released on 2024-06-30, and the Ultra 7 256V on 2024-09-23. The market segments are Desktop for the i7-14701E and Mobile for the Ultra 7 256V. Both processors are actively in production, both have locked multipliers, and neither has a recorded launch MSRP.

FAQ

Q: Which processor has higher multi-core rendering performance?

A: The Intel Core i7-14701E dominates multi-core rendering. In Cinebench R23 multi-core, it scores 22195 versus 10399 for the Ultra 7 256V, a 113.4% advantage. Cinebench R20 multi-core shows a 34% lead (9321 versus 6958), and Cinebench R15 multi-core shows a 41.3% lead (2237 versus 1583.5).

Q: Does the Ultra 7 256V win any benchmark at all?

A: Yes, the Ultra 7 256V wins the PassMark find prime numbers test with a score of 192 against 176 for the i7-14701E, an 8.3% advantage. This is the only benchmark among the 17 recorded where the mobile chip comes out ahead.

Q: What is the performance gap in single-threaded workloads?

A: The i7-14701E leads in all single-thread tests. The margins range from 6.9% in PassMark single-thread (4305 versus 4029) to 66.9% in Cinebench R23 single-core (3133 versus 1877.5). The Cinebench R20 single-core test shows a 33.9% lead (1315 versus 982), and Cinebench R15 shows a 10.3% lead (315 versus 285.5).

Q: How do the thread counts affect the results?

A: The i7-14701E has 16 threads while the Ultra 7 256V has 8 threads. This doubling of thread count is a major factor in the multi-core benchmark results, where the i7-14701E leads by as much as 113.4% in Cinebench R23 multi-core.

Q: What are the power consumption differences?

A: The i7-14701E has a TDP of 65 watts, while the Ultra 7 256V has a TDP of 17 watts. This reflects the desktop versus mobile positioning of the two chips, with the Ultra 7 256V designed for much lower power draw.

Q: Which processor has more PCIe lanes?

A: The i7-14701E offers 16 Gen 5 lanes from the CPU, while the Ultra 7 256V offers only 4 Gen 5 lanes. This makes the desktop part more suitable for connecting multiple high-bandwidth components.

The Verdict

The data shows two processors with completely different design goals. The Intel Core i7-14701E is a desktop part built for maximum performance across a wide range of workloads. Its 16 threads, higher clock speeds, and larger L3 cache translate into decisive wins in rendering, math, compression, and physics simulations. The 113.4% lead in Cinebench R23 multi-core and the 87.6% lead in integer math are particularly strong indicators of its multi-threaded capability.

The Intel Core Ultra 7 256V is a mobile processor designed for efficiency. Its 17 watt TDP, 3 nm process node, and 8 threads make it suitable for battery-powered devices, but the benchmark data shows it cannot match the i7-14701E's performance output. The single win in prime number calculation is an interesting outlier but does not change the overall picture.

For users who need heavy compute performance, whether for rendering, scientific computation, or data processing, the i7-14701E is the clear choice based on the recorded scores. For users who need a low-power mobile processor, the Ultra 7 256V offers a specific advantage in power efficiency, but the benchmark data in this database does not quantify that advantage beyond the TDP specification. The choice between these two chips should be guided by the platform requirement: desktop users will find the i7-14701E far more capable, while the Ultra 7 256V is the only one of the two that fits a mobile form factor.