Intel Core Ultra 5 225T vs Intel Core Ultra 7 256V Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep: the Intel Core Ultra 5 225T wins all 17 head-to-head benchmark comparisons against the Intel Core Ultra 7 256V, with zero wins for the mobile chip. The margin is not uniform, so the pattern of victories tells the real story.

The largest single gap appears in Cinebench R23 multi-core, where the Ultra 5 225T scores 21,971 versus 10,399 for the Ultra 7 256V, a delta of 111.3%. That is more than double the output in a sustained all-core rendering workload. In Cinebench R20 multi-core, the lead narrows to 32.6%, with scores of 9,227 and 6,958. Cinebench R15 multi-core shows a 39.8% advantage (2,214 versus 1,583.5). The multi-core scaling advantage is consistent, but the R23 result stands out as the most extreme outlier in the set.

Single-core results are closer but still favor the desktop part. Cinebench R23 single-core shows 3,101 versus 1,877.5, a 65.2% gap. Cinebench R20 single-core delivers 1,302 versus 982, also a 32.6% delta. Cinebench R15 single-core is the tightest Cinebench comparison at 9.3% (312 versus 285.5). PassMark single-thread confirms the narrower single-core spread: 4,348 versus 4,029, a 7.9% delta.

The PassMark suite mirrors the multi-core dominance. Floating point math gives the Ultra 5 225T an 41.3% lead (82,751 versus 58,576). Integer math shows 59,543 versus 43,358, a 37.3% gap. Find prime numbers is the second-largest margin overall at 47.9% (284 versus 192). Data compression shows 233,998 versus 184,985, a 26.5% delta. Data encryption lands at 18,289 versus 13,998, a 30.7% gap. Extended instructions produce 20,083 versus 15,643, a 28.4% lead. Random string sorting rounds out with 28,774 versus 22,481, a 28% delta. Multithread, physics, and single-thread tests show 29.8%, 28.7%, and 7.9% advantages respectively.

The overall average benchmark score reflects the same hierarchy: the Ultra 5 225T averages 30,468 against 21,112 for the Ultra 7 256V. The desktop chip sits at the 82nd percentile of all CPUs, while the mobile part sits at the 75th percentile. The nearest rivals confirm the positioning. The Ultra 5 225T trades nearly evenly with the Intel Core i9-11980HK (0.2% delta), the AMD Ryzen 5 7640HS (0.3%), and the AMD Ryzen 7 7736U (0.3%), while trailing the Intel Core i5-13600H by 0.3%. The Ultra 7 256V sits within 0.3% of the AMD Ryzen 5 7530U, the AMD Ryzen 5 5600G, the Intel Core i3-1220P, and the Intel Core Ultra 7 155U.

Architecture Differences

The two processors come from different dies within the same Core Ultra Series 2 family. The Ultra 5 225T uses the Arrow Lake architecture with the Arrow Lake-S codename, built for the desktop market on Intel Socket 1851. The Ultra 7 256V uses the Lunar Lake architecture, also codename Lunar Lake, aimed at mobile systems on Intel BGA 2833. Both are fabricated by TSMC on a 3 nm process node, so the manufacturing process is identical.

The core counts diverge. The Ultra 5 225T has 10 cores and 10 threads, meaning no hyper-threading. The Ultra 7 256V has 8 cores and 8 threads, also without hyper-threading. The desktop chip has two additional physical cores, and that difference drives much of the multi-core performance gap.

Cache hierarchies differ in the L2 and L3 levels. Both parts allocate 192 KB of L1 per core. The Ultra 5 225T provides 3 MB of L2 per core and 20 MB of shared L3. The Ultra 7 256V provides 2.5 MB of L2 per core and 12 MB of shared L3. The desktop part has both more per-core L2 and substantially more shared L3.

The transistor counts and die sizes are not fully recorded for both parts. The Ultra 5 225T lists 17,800 million transistors on a 243 mm² die. The Ultra 7 256V does not have recorded transistor or die size data in the database.

Memory support differs. The Ultra 5 225T uses DDR5 with dual-channel memory bus and 102.4 GB/s of memory bandwidth. The Ultra 7 256V also uses dual-channel memory, but its memory type is listed as dependent on the motherboard, and its bandwidth is not recorded.

PCIe lanes differ significantly. The Ultra 5 225T provides Gen 5 with 20 lanes from the CPU. The Ultra 7 256V provides Gen 5 with only 4 lanes from the CPU. This reflects the desktop versus mobile positioning.

Integrated graphics differ. The Ultra 5 225T carries Arc Xe-LPG Graphics with 16 execution units. The Ultra 7 256V carries the Arc 140V, a more capable integrated GPU. The database does not record graphical benchmark scores for either part, so the comparison remains limited to CPU workloads.

Clock speeds favor the desktop chip. The Ultra 5 225T has a 2.50 GHz base clock and a 4.90 GHz boost clock. The Ultra 7 256V has a 2.20 GHz base clock and a 4.80 GHz boost clock. The desktop part is higher at both ends.

Power envelopes are very different. The Ultra 5 225T is rated at 65 W TDP, while the Ultra 7 256V is rated at 17 W TDP. That 48 W difference explains much of the performance spread, as the desktop part can sustain higher clocks under load.

Where Each One Wins

The data shows 17 wins for the Ultra 5 225T and zero for the Ultra 7 256V, so the desktop part wins every measured category. That does not mean the mobile chip has no utility, but within the recorded benchmarks it does not lead in any workload.

The Ultra 5 225T wins decisively in multi-threaded rendering. Cinebench R23 multi-core shows the largest margin at 111.3%, and Cinebench R15 and R20 multi-core both exceed 30%. This makes the desktop part the clear choice for CPU-bound rendering tasks that scale across cores.

The Ultra 5 225T also wins in all PassMark compute categories. The largest margins appear in find prime numbers (47.9%) and floating point math (41.3%), followed by integer math (37.3%). These are heavily multi-threaded workloads that benefit from the extra two cores and the higher power budget.

Single-thread performance still favors the Ultra 5 225T, but by smaller margins. PassMark single-thread shows only 7.9% separation, and Cinebench R15 single-core shows 9.3%. The Ultra 7 256V is closer in lightly threaded tasks, suggesting its architecture is competitive on a per-core basis despite the lower base clock.

The Ultra 7 256V has no benchmark wins to claim. Its advantage lies outside the CPU compute metrics: an integrated Arc 140V GPU, a 17 W TDP, and a mobile socket. For workloads that depend primarily on the integrated graphics or on battery-powered operation, the data does not provide direct measurements, but the TDP and form factor differences are recorded.

Specification Differences

The two processors differ across several recorded specification fields. The Ultra 5 225T has 10 cores and 10 threads; the Ultra 7 256V has 8 cores and 8 threads. Base clocks are 2.50 GHz versus 2.20 GHz. Boost clocks are 4.90 GHz versus 4.80 GHz. TDP is 65 W versus 17 W. Sockets are Intel Socket 1851 versus Intel BGA 2833. Architecture and codename are Arrow Lake / Arrow Lake-S versus Lunar Lake / Lunar Lake.

Cache differs: L2 is 3 MB per core versus 2.5 MB per core, and L3 is 20 MB shared versus 12 MB shared. L1 is identical at 192 KB per core. Memory bandwidth is recorded only for the Ultra 5 225T at 102.4 GB/s; the Ultra 7 256V has no recorded bandwidth. PCIe lanes are 20 versus 4, both Gen 5. Integrated graphics are Arc Xe-LPG Graphics 16EU versus Arc 140V. Market segment is Desktop versus Mobile. Release dates differ: the Ultra 5 225T released on 2024-12-31, the Ultra 7 256V on 2024-09-23. Both have no launch MSRP recorded and neither has an unlocked multiplier.

Transistor count and die size are recorded only for the Ultra 5 225T (17,800 million transistors, 243 mm²). The Ultra 7 256V has null values for both. Memory support is DDR5 for the desktop part, while the mobile part is listed as dependent on the motherboard.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 225T has 10 cores and 10 threads, while the Intel Core Ultra 7 256V has 8 cores and 8 threads.

Q: What is the largest performance gap between the two?

A: The largest recorded gap is in Cinebench R23 multi-core, where the Ultra 5 225T scores 21,971 versus 10,399, a delta of 111.3%.

Q: How close are the two in single-thread performance?

A: PassMark single-thread shows 4,348 versus 4,029, a 7.9% lead for the Ultra 5 225T. Cinebench R15 single-core shows 312 versus 285.5, a 9.3% lead.

Q: Which processor uses a smaller power envelope?

A: The Intel Core Ultra 7 256V is rated at 17 W TDP, compared to 65 W for the Intel Core Ultra 5 225T.

Q: Do both processors use the same manufacturing node?

A: Yes, both are fabricated by TSMC on a 3 nm process node.

Q: Which processor has more PCIe lanes?

A: The Intel Core Ultra 5 225T provides Gen 5 with 20 lanes from the CPU, while the Intel Core Ultra 7 256V provides Gen 5 with 4 lanes from the CPU.

The Verdict

The benchmark data clearly separates these two processors by market segment and workload. The Intel Core Ultra 5 225T is the stronger CPU in every recorded test. Its 10 cores, 65 W TDP, and 4.90 GHz boost clock produce substantial multi-threaded advantages, with Cinebench R23 multi-core more than doubling the Ultra 7 256V score. The average benchmark score of 30,468 versus 21,112 places the desktop part at the 82nd percentile of all CPUs, compared to the 75th percentile for the mobile part.

The Intel Core Ultra 7 256V does not win any benchmark, but its recorded specifications target a different environment. The 17 W TDP, mobile BGA 2833 socket, and Arc 140V integrated graphics indicate a low-power mobile design. The database does not include graphics benchmarks, so the comparison is limited to CPU compute. Within that scope, the Ultra 5 225T is the correct choice for desktop workloads that demand multi-core throughput, particularly rendering and compute-intensive PassMark tasks. The Ultra 7 256V is suited for systems where the 17 W power envelope and mobile form factor are priorities, accepting the significant CPU performance trade-off. The selection depends on whether the workload favors the 65 W desktop part's raw compute or the 17 W mobile part's efficiency profile. The recorded data supports the Ultra 5 225T for any CPU-bound application.