Core i5-1335U vs Core Ultra 7 255H: specs and benchmark comparison
Short verdict
Not enough data for a performance conclusion: the database has no comparable benchmarks for this pair. Below are the key differences in official specifications.
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Only measured and rated values: a noticeable benchmark gap and specs where more is better.
Where Core i5-1335U is better1
Processor Base Power (Intel) 13 W lower15 W vs 28 W
Where Core Ultra 7 255H is better5
Cores 6 more16 (6P + 10E) vs 10 (2P + 8E)
Threads 4 more16 vs 12
L3 cache 12 MB more24 MB vs 12 MB
Official memory speed 1,200 MT/s more6,400 MT/s vs 5,200 MT/s
Max memory capacity 32 GB more128 GB vs 96 GB
Benchmarks
Results are compared within one benchmark, one version and the same conditions. Laptop chip results depend on the laptop model: its maker sets the power limit and cooling.
Blender Benchmark 4.5.0
CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better
Core i5-1335U77.9 samples/minCore Ultra 7 255H212.9 samples/minNo advantage conclusion: small sample in one of the results.
About the measurement and source
- A · Intel Core i5-1335U
77.9 samples/min · community measurement, sample 4 · November 15, 2026
Blender Open Data (Blender Foundation)
Median of 4 submissions (0 outliers excluded), interquartile range 66.01–89.94; submissions 2025-08-04 to 2026-01-27; CPU backend. Snapshot 2026-11-15.
- B · Intel Core Ultra 7 255H
212.9 samples/min · community measurement, sample 30 · November 15, 2026
Blender Open Data (Blender Foundation)
Median of 30 submissions (0 outliers excluded), interquartile range 161.85–248.57; submissions 2025-07-17 to 2026-03-08; CPU backend. Snapshot 2026-11-15.
difference = |A − B| ÷ the smaller value × 100%. The 5% noticeable threshold is a UX heuristic, not statistical significance.
Cycles render in Blender Benchmark. Median of the sum of samples per minute over three scenes after removing outliers.
Reference results (13)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom | 95.6 | 245.8 | reference |
| Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom | 108.8 | 175.1 | reference |
| Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom | 39 | 207.5 | reference |
| Blender Benchmark 3.2.1CPU, sum of scenes monster + junkshop + classroom | 65.3 | — | no pair |
| Blender Benchmark 3.4.0CPU, sum of scenes monster + junkshop + classroom | 83.9 | — | no pair |
| Blender Benchmark 3.5.0CPU, sum of scenes monster + junkshop + classroom | 75.7 | — | no pair |
| Blender Benchmark 3.6.0CPU, sum of scenes monster + junkshop + classroom | 82.6 | 247.6 | reference |
| Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom | 76.7 | — | no pair |
| Blender Benchmark 4.1.0CPU, sum of scenes monster + junkshop + classroom | 77.1 | — | no pair |
| Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom | 53.4 | 274.5 | reference |
| Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom | 67.6 | 212 | reference |
| Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom | 45.7 | 234.7 | reference |
| Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom | — | 199.1 | no pair |
Each benchmark version has its own scale: numbers are compared only within a row.
Specifications
Chip maker values. The laptop maker sets the power limit and clocks in each laptop.
| Specification | A · Core i5-1335U | B · Core Ultra 7 255H | Difference |
|---|---|---|---|
| Cores and clocks | |||
| CoresCores of different types may differ in performance. | 10 (2P + 8E) | 16 (6P + 10E) | B: 6 more |
| Threads | 12 | 16 | B: 4 more |
| Base clockFor hybrid Intel CPUs, the P-core base clock is shown. | no data | 2 GHz | no data for A |
| Max clock (Boost/Turbo) | 4.6 GHz | 5.1 GHz | B: 0.5 GHz more |
| Cache | |||
| L3 cache | 12 MB | 24 MB | B: 12 MB more |
| Platform | |||
| Socket | FCBGA1744 | FCBGA2049 | differs |
| Process node | Intel 7 | no data | no data for B |
| Memory and interfaces | |||
| Memory type | DDR4, DDR5, LPDDR4x, LPDDR5/x | DDR5, LPDDR5/x | differs |
| Memory channels | 2 | 2 | equal |
| Official memory speedFor controllers that support two generations, the speed for the newer memory type is shown. | 5,200 MT/s | 6,400 MT/s | B: 1,200 MT/s more |
| Max memory capacity | 96 GB | 128 GB | B: 32 GB more |
| PCI Express | PCIe 4.0, 20 lanes | PCIe 5.0 and 4.0, 28 lanes | differs |
| Integrated graphics | Intel Iris Xe Graphics (eligible) | Intel Arc 140T GPU | differs |
| Power | |||
| Processor Base Power (Intel) | 15 W | 28 W | B: 13 W higher |
| Maximum Turbo Power (Intel) | 55 W | 115 W | B: 60 W higher |
| Minimum Assured Power (Intel)The lower bound to which the laptop maker can reduce the CPU’s base power. | 12 W | 20 W | B: 8 W higher |
Cores and clocks
Cores
A10 (2P + 8E)
B16 (6P + 10E)
B: 6 moreCores of different types may differ in performance.
Threads
A12
B16
B: 4 moreBase clock
Ano data
B2 GHz
no data for AFor hybrid Intel CPUs, the P-core base clock is shown.
Max clock (Boost/Turbo)
A4.6 GHz
B5.1 GHz
B: 0.5 GHz more
Cache
L3 cache
A12 MB
B24 MB
B: 12 MB more
Platform
Socket
AFCBGA1744
BFCBGA2049
differsProcess node
AIntel 7
Bno data
no data for B
Memory and interfaces
Memory type
ADDR4, DDR5, LPDDR4x, LPDDR5/x
BDDR5, LPDDR5/x
differsMemory channels
A2
B2
equalOfficial memory speed
A5,200 MT/s
B6,400 MT/s
B: 1,200 MT/s moreFor controllers that support two generations, the speed for the newer memory type is shown.
Max memory capacity
A96 GB
B128 GB
B: 32 GB morePCI Express
APCIe 4.0, 20 lanes
BPCIe 5.0 and 4.0, 28 lanes
differsIntegrated graphics
AIntel Iris Xe Graphics (eligible)
BIntel Arc 140T GPU
differs
Power
Processor Base Power (Intel)
A15 W
B28 W
B: 13 W higherMaximum Turbo Power (Intel)
A55 W
B115 W
B: 60 W higherMinimum Assured Power (Intel)
A12 W
B20 W
B: 8 W higherThe lower bound to which the laptop maker can reduce the CPU’s base power.
“More” does not always mean “better”: higher power draw or size is a system requirement, not an advantage (such bars are dimmed).
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An AI model reviews the specs and benchmarks of this pair and gives a plain-language verdict on who each model suits.
Questions and answers
Do Intel Core i5-1335U and Intel Core Ultra 7 255H fit the same motherboard?
No: Intel Core i5-1335U uses FCBGA1744, while Intel Core Ultra 7 255H uses FCBGA2049.
How many cores and threads do Intel Core i5-1335U and Intel Core Ultra 7 255H have?
Intel Core i5-1335U: 10 cores / 12 threads. Intel Core Ultra 7 255H: 16 cores / 16 threads (manufacturer data).
Do these CPUs have integrated graphics?
Intel Core i5-1335U: Intel Iris Xe Graphics (eligible). Intel Core Ultra 7 255H: Intel Arc 140T GPU.
See also
Data sources (2)
- Intel — specifications of Intel Core i5-1335U, specifications of Intel Core Ultra 7 255Hchecked November 7, 2026
- Blender Open Data (Blender Foundation) — benchmark Blender Benchmark 4.2.0, benchmark Blender Benchmark 4.5.0, benchmark Blender Benchmark 5.1.1, benchmark Blender Benchmark 5.2.0, benchmark Blender Benchmark 3.2.1, benchmark Blender Benchmark 3.4.0, benchmark Blender Benchmark 3.5.0, benchmark Blender Benchmark 3.6.0, benchmark Blender Benchmark 4.0.0, benchmark Blender Benchmark 4.1.0, benchmark Blender Benchmark 4.3.0, benchmark Blender Benchmark 4.4.0, benchmark Blender Benchmark 5.1.0, benchmark Blender Benchmark 5.0.0checked November 14, 2026
How we compare: methodology. Where the data comes from: sources.