Core Ultra 7 255H vs Core Ultra 9 185H: specs and benchmark comparison
Short verdict
In the available comparable benchmarks the difference is below the noticeable threshold, so no significant advantage was found.
Compare with AIMulti-thread performance
≈ parityThe difference in available benchmarks is below the noticeable threshold, so there is no significant advantage.
No comparable benchmarks yet: single-thread performance, gaming (cpu-bound scenarios), power efficiency.
Advantages
Only measured and rated values: a noticeable benchmark gap and specs where more is better.
Where Core Ultra 7 255H is better3
Official memory speed 800 MT/s more6,400 MT/s vs 5,600 MT/s
Max memory capacity 32 GB more128 GB vs 96 GB
Processor Base Power (Intel) 17 W lower28 W vs 45 W
Where Core Ultra 9 185H is better1
Threads 6 more22 vs 16
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.
- 3% difference, within the threshold
Blender Benchmark 4.5.0
CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better
Core Ultra 7 255H212.9 samples/minCore Ultra 9 185H206.7 samples/minPosition among tested models (89)
B · 207A · 2130200400600800Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min. The 3% difference is below the noticeable threshold (5%).
About the measurement and source
- A · 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.
- B · Intel Core Ultra 9 185H
206.7 samples/min · community measurement, sample 32 · November 15, 2026
Blender Open Data (Blender Foundation)
Median of 32 submissions (0 outliers excluded), interquartile range 172.4–225.43; submissions 2025-07-18 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 (11)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom | 245.8 | 218.1 | reference |
| Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom | 175.1 | 178.6 | reference |
| Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom | 207.5 | 237.8 | reference |
| Blender Benchmark 3.6.0CPU, sum of scenes monster + junkshop + classroom | 247.6 | 236.1 | reference |
| Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom | 274.5 | 206.9 | reference |
| Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom | 212 | 233.2 | reference |
| Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom | 199.1 | — | no pair |
| Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom | 234.7 | — | no pair |
| Blender Benchmark 3.2.1CPU, sum of scenes monster + junkshop + classroom | — | 196.4 | no pair |
| Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom | — | 208.5 | no pair |
| Blender Benchmark 4.1.0CPU, sum of scenes monster + junkshop + classroom | — | 185 | 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 Ultra 7 255H | B · Core Ultra 9 185H | Difference |
|---|---|---|---|
| Cores and clocks | |||
| CoresCores of different types may differ in performance. | 16 (6P + 10E) | 16 (6P + 10E) | equal |
| Threads | 16 | 22 | B: 6 more |
| Base clockFor hybrid Intel CPUs, the P-core base clock is shown. | 2 GHz | 2.3 GHz | B: 0.3 GHz more |
| Max clock (Boost/Turbo) | 5.1 GHz | 5.1 GHz | equal |
| Cache | |||
| L3 cache | 24 MB | 24 MB | equal |
| Platform | |||
| Socket | FCBGA2049 | FCBGA2049 | equal |
| Memory and interfaces | |||
| Memory type | DDR5, LPDDR5/x | DDR5, LPDDR5/x | equal |
| Memory channels | 2 | 2 | equal |
| Official memory speedFor controllers that support two generations, the speed for the newer memory type is shown. | 6,400 MT/s | 5,600 MT/s | A: 800 MT/s more |
| Max memory capacity | 128 GB | 96 GB | A: 32 GB more |
| PCI Express | PCIe 5.0 and 4.0, 28 lanes | PCIe 5.0 and 4.0, 28 lanes | equal |
| Integrated graphics | Intel Arc 140T GPU | Intel Arc graphics | differs |
| Power | |||
| Processor Base Power (Intel) | 28 W | 45 W | B: 17 W higher |
| Maximum Turbo Power (Intel) | 115 W | 115 W | equal |
| Minimum Assured Power (Intel)The lower bound to which the laptop maker can reduce the CPU’s base power. | 20 W | 35 W | B: 15 W higher |
Cores and clocks
Cores
A16 (6P + 10E)
B16 (6P + 10E)
equalCores of different types may differ in performance.
Threads
A16
B22
B: 6 moreBase clock
A2 GHz
B2.3 GHz
B: 0.3 GHz moreFor hybrid Intel CPUs, the P-core base clock is shown.
Max clock (Boost/Turbo)
A5.1 GHz
B5.1 GHz
equal
Cache
L3 cache
A24 MB
B24 MB
equal
Platform
Socket
AFCBGA2049
BFCBGA2049
equal
Memory and interfaces
Memory type
ADDR5, LPDDR5/x
BDDR5, LPDDR5/x
equalMemory channels
A2
B2
equalOfficial memory speed
A6,400 MT/s
B5,600 MT/s
A: 800 MT/s moreFor controllers that support two generations, the speed for the newer memory type is shown.
Max memory capacity
A128 GB
B96 GB
A: 32 GB morePCI Express
APCIe 5.0 and 4.0, 28 lanes
BPCIe 5.0 and 4.0, 28 lanes
equalIntegrated graphics
AIntel Arc 140T GPU
BIntel Arc graphics
differs
Power
Processor Base Power (Intel)
A28 W
B45 W
B: 17 W higherMaximum Turbo Power (Intel)
A115 W
B115 W
equalMinimum Assured Power (Intel)
A20 W
B35 W
B: 15 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).
Compare with AI
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 Ultra 7 255H and Intel Core Ultra 9 185H fit the same motherboard?
Both CPUs use the FCBGA2049 socket. Support on a specific board depends on the chipset and BIOS version, so check the board maker’s CPU support list.
How many cores and threads do Intel Core Ultra 7 255H and Intel Core Ultra 9 185H have?
Intel Core Ultra 7 255H: 16 cores / 16 threads. Intel Core Ultra 9 185H: 16 cores / 22 threads (manufacturer data).
Do these CPUs have integrated graphics?
Intel Core Ultra 7 255H: Intel Arc 140T GPU. Intel Core Ultra 9 185H: Intel Arc graphics.
Which is faster: Intel Core Ultra 7 255H or Intel Core Ultra 9 185H?
In the available comparable benchmarks the difference is below the noticeable threshold, so no significant advantage was found.
See also
Data sources (2)
- Intel — specifications of Intel Core Ultra 7 255H, specifications of Intel Core Ultra 9 185Hchecked 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 3.6.0, 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 5.0.0, benchmark Blender Benchmark 5.1.0checked November 14, 2026
How we compare: methodology. Where the data comes from: sources.