Core Ultra 5 245K vs Core Ultra 7 265K: specs and benchmark comparison
AIntel · Arrow Lake
Intel Core Ultra 5 245K
- 14 cores / 14 threads
- up to 5.2 GHz
- LGA1851
October 24, 2024 · $309 at launch
BIntel · Arrow Lake
Intel Core Ultra 7 265K
- 20 cores / 20 threads
- up to 5.5 GHz
- LGA1851
October 24, 2024 · $394 at launch
Short verdict
Intel Core Ultra 7 265K leads in every scenario with comparable benchmarks: multi-thread performance. This does not imply an advantage in tasks without benchmarks.
Compare with AIMulti-thread performance
B +77.5%Intel Core Ultra 7 265K leads in this scenario (up to 77.5% in comparable benchmarks).
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 5 245K is better1
Launch price $85 lower$309 vs $394
Where Core Ultra 7 265K is better5
Blender Benchmark 4.5.0 48.8% faster478 samples/min vs 321 samples/min
Cores 6 more20 (8P + 12E) vs 14 (6P + 8E)
Threads 6 more20 vs 14
L2 cache 10 MB more36 MB vs 26 MB
L3 cache 6 MB more30 MB vs 24 MB
Benchmarks
Results are compared within one benchmark, one version and the same conditions.
- B ahead by 48.8%
Blender Benchmark 4.5.0
CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better
Core Ultra 5 245K321.4 samples/minCore Ultra 7 265K478.1 samples/minPosition among tested models (89)
A · 321B · 4780200400600800Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min. Intel Core Ultra 7 265K is ahead by 48.8% in this benchmark.
About the measurement and source
- A · Intel Core Ultra 5 245K
321.4 samples/min · community measurement, sample 22 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 22 submissions (3 outliers excluded), interquartile range 310.8–336.58; submissions 2025-07-18 to 2026-03-20; CPU backend. Snapshot 2026-11-14.
- B · Intel Core Ultra 7 265K
478.1 samples/min · community measurement, sample 259 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 259 submissions (20 outliers excluded), interquartile range 461.67–491.45; submissions 2025-07-17 to 2026-06-08; CPU backend. Snapshot 2026-11-14.
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.
Other comparable benchmarks (1)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom | 271.6 | 482.1 | B +77.5% |
Each benchmark version has its own scale: numbers are compared only within a row.
Reference results (8)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom | 322.2 | 465.4 | reference |
| Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom | 356 | 520.7 | reference |
| Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom | 311.7 | 460 | reference |
| Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom | 315.8 | 468.3 | reference |
| Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom | 316.9 | 449.8 | reference |
| Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom | 362.7 | 537.4 | reference |
| Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom | — | 537.2 | no pair |
| Blender Benchmark 5.3.0CPU, sum of scenes monster + junkshop + classroom | — | 514.6 | no pair |
Each benchmark version has its own scale: numbers are compared only within a row.
Specifications
| Specification | A · Core Ultra 5 245K | B · Core Ultra 7 265K | Difference |
|---|---|---|---|
| Cores and clocks | |||
| CoresCores of different types may differ in performance. | 14 (6P + 8E) | 20 (8P + 12E) | B: 6 more |
| Threads | 14 | 20 | B: 6 more |
| Base clockFor hybrid Intel CPUs, the P-core base clock is shown. | 4.2 GHz | 3.9 GHz | A: 0.3 GHz more |
| Max clock (Boost/Turbo) | 5.2 GHz | 5.5 GHz | B: 0.3 GHz more |
| Cache | |||
| L2 cache | 26 MB | 36 MB | B: 10 MB more |
| L3 cache | 24 MB | 30 MB | B: 6 MB more |
| Platform | |||
| Socket | LGA1851 | LGA1851 | equal |
| Memory and interfaces | |||
| Memory type | DDR5 | DDR5 | 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 | 6,400 MT/s | equal |
| Max memory capacity | 256 GB | 256 GB | equal |
| PCI Express | PCIe 5.0 and 4.0, 24 lanes | PCIe 5.0 and 4.0, 24 lanes | equal |
| Integrated graphics | Intel Graphics (4 Xe cores) | Intel Graphics (4 Xe cores) | equal |
| Power | |||
| Processor Base Power (Intel) | 125 W | 125 W | equal |
| Maximum Turbo Power (Intel) | 159 W | 250 W | B: 91 W higher |
Cores and clocks
Cores
A14 (6P + 8E)
B20 (8P + 12E)
B: 6 moreCores of different types may differ in performance.
Threads
A14
B20
B: 6 moreBase clock
A4.2 GHz
B3.9 GHz
A: 0.3 GHz moreFor hybrid Intel CPUs, the P-core base clock is shown.
Max clock (Boost/Turbo)
A5.2 GHz
B5.5 GHz
B: 0.3 GHz more
Cache
L2 cache
A26 MB
B36 MB
B: 10 MB moreL3 cache
A24 MB
B30 MB
B: 6 MB more
Platform
Socket
ALGA1851
BLGA1851
equal
Memory and interfaces
Memory type
ADDR5
BDDR5
equalMemory channels
A2
B2
equalOfficial memory speed
A6,400 MT/s
B6,400 MT/s
equalFor controllers that support two generations, the speed for the newer memory type is shown.
Max memory capacity
A256 GB
B256 GB
equalPCI Express
APCIe 5.0 and 4.0, 24 lanes
BPCIe 5.0 and 4.0, 24 lanes
equalIntegrated graphics
AIntel Graphics (4 Xe cores)
BIntel Graphics (4 Xe cores)
equal
Power
Processor Base Power (Intel)
A125 W
B125 W
equalMaximum Turbo Power (Intel)
A159 W
B250 W
B: 91 W higher
“More” does not always mean “better”: higher power draw or size is a system requirement, not an advantage (such bars are dimmed).
Platform compatibility
Socket and BIOS support Needs checking
Both models use LGA1851, but support on a specific motherboard depends on the chipset and BIOS version. Check the board maker’s CPU support list.
Memory Needs checking
Both controllers support DDR5. The motherboard determines the memory type, so check its specification.
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 5 245K and Intel Core Ultra 7 265K fit the same motherboard?
Both CPUs use the LGA1851 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 5 245K and Intel Core Ultra 7 265K have?
Intel Core Ultra 5 245K: 14 cores / 14 threads. Intel Core Ultra 7 265K: 20 cores / 20 threads (manufacturer data).
Do these CPUs have integrated graphics?
Intel Core Ultra 5 245K: Intel Graphics (4 Xe cores). Intel Core Ultra 7 265K: Intel Graphics (4 Xe cores).
Which is faster: Intel Core Ultra 5 245K or Intel Core Ultra 7 265K?
Intel Core Ultra 7 265K leads in every scenario with comparable benchmarks: multi-thread performance. This does not imply an advantage in tasks without benchmarks.
See also
Data sources (3)
- Intel — specifications of Intel Core Ultra 5 245K, specifications of Intel Core Ultra 7 265Kchecked 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 4.3.0, benchmark Blender Benchmark 4.4.0, benchmark Blender Benchmark 5.0.0, benchmark Blender Benchmark 5.1.0, benchmark Blender Benchmark 4.0.0, benchmark Blender Benchmark 5.3.0checked November 14, 2026
- Wikipedia (English) — release date and launch pricechecked November 14, 2026
How we compare: methodology. Where the data comes from: sources.