Core i9-12900K vs Core i9-13900HX: specs and benchmark comparison
AIntel · Alder Lake
Intel Core i9-12900K
- 16 cores / 24 threads
- up to 5.2 GHz
- LGA1700
2021 · $589 at launch
Multi-thread performance
depends on the taskBenchmark results disagree, so the choice depends on the specific task.
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 i9-12900K is better0
No advantages found in our data.
Where Core i9-13900HX is better6
Cores 8 more24 (8P + 16E) vs 16 (8P + 8E)
Threads 8 more32 vs 24
L3 cache 6 MB more36 MB vs 30 MB
Official memory speed 800 MT/s more5,600 MT/s vs 4,800 MT/s
Max memory capacity 64 GB more192 GB vs 128 GB
Processor Base Power (Intel) 70 W lower55 W vs 125 W
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.
- 3.8% difference, within the threshold
Blender Benchmark 4.5.0
CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better
Core i9-12900K356.2 samples/minCore i9-13900HX369.6 samples/minPosition among tested models (89)
A · 356B · 3700200400600800Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min. The 3.8% difference is below the noticeable threshold (5%).
About the measurement and source
- A · Intel Core i9-12900K
356.2 samples/min · community measurement, sample 65 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 65 submissions (3 outliers excluded), interquartile range 339–381.03; submissions 2025-07-24 to 2026-03-10; CPU backend. Snapshot 2026-11-14.
- B · Intel Core i9-13900HX
369.6 samples/min · community measurement, sample 103 · November 15, 2026
Blender Open Data (Blender Foundation)
Median of 103 submissions (2 outliers excluded), interquartile range 298.56–427.56; submissions 2025-07-26 to 2026-02-15; 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.
Other comparable benchmarks (7)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom | 349.6 | 321.2 | A +8.8% |
| Blender Benchmark 3.5.0CPU, sum of scenes monster + junkshop + classroom | 361 | 421.3 | B +16.7% |
| Blender Benchmark 3.6.0CPU, sum of scenes monster + junkshop + classroom | 345.6 | 353.5 | B +2.3% |
| Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom | 346.7 | 363.4 | B +4.8% |
| Blender Benchmark 4.1.0CPU, sum of scenes monster + junkshop + classroom | 342.2 | 313.3 | A +9.2% |
| Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom | 331.4 | 295.5 | A +12.2% |
| Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom | 334.6 | 330.7 | A +1.2% |
Each benchmark version has its own scale: numbers are compared only within a row.
Reference results (11)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom | 375.6 | 381.9 | reference |
| Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom | 341.3 | 392 | reference |
| Blender Benchmark 3.0.1CPU, sum of scenes monster + junkshop + classroom | 390.1 | — | no pair |
| Blender Benchmark 3.1.0CPU, sum of scenes monster + junkshop + classroom | 368 | — | no pair |
| Blender Benchmark 3.2.0CPU, sum of scenes monster + junkshop + classroom | 362.5 | — | no pair |
| Blender Benchmark 3.2.1CPU, sum of scenes monster + junkshop + classroom | 373.7 | 293 | reference |
| Blender Benchmark 3.3.0CPU, sum of scenes monster + junkshop + classroom | 392.4 | 392.8 | reference |
| Blender Benchmark 3.4.0CPU, sum of scenes monster + junkshop + classroom | 370 | 400.4 | reference |
| Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom | 346.9 | 396.8 | reference |
| Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom | 364.6 | 364.9 | reference |
| Blender Benchmark 5.3.0CPU, sum of scenes monster + junkshop + classroom | 364.4 | 251.5 | reference |
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 i9-12900K | B · Core i9-13900HX | Difference |
|---|---|---|---|
| Cores and clocks | |||
| CoresCores of different types may differ in performance. | 16 (8P + 8E) | 24 (8P + 16E) | B: 8 more |
| Threads | 24 | 32 | B: 8 more |
| Base clockFor hybrid Intel CPUs, the P-core base clock is shown. | 3.2 GHz | no data | no data for B |
| Max clock (Boost/Turbo) | 5.2 GHz | 5.4 GHz | B: 0.2 GHz more |
| Cache | |||
| L2 cache | 14 MB | no data | no data for B |
| L3 cache | 30 MB | 36 MB | B: 6 MB more |
| Platform | |||
| Socket | LGA1700 | FCBGA1964 | differs |
| Process node | Intel 7 | Intel 7 | equal |
| Memory and interfaces | |||
| Memory type | DDR4, DDR5 | DDR4, DDR5 | equal |
| Memory channels | 2 | 2 | equal |
| Official memory speedFor controllers that support two generations, the speed for the newer memory type is shown. | 4,800 MT/s | 5,600 MT/s | B: 800 MT/s more |
| Max memory capacity | 128 GB | 192 GB | B: 64 GB more |
| PCI Express | PCIe 5.0 and 4.0, 20 lanes | PCIe 5.0 and 4.0, 20 lanes | equal |
| Integrated graphics | Intel UHD Graphics 770 | Intel UHD Graphics (13th gen) | differs |
| Power | |||
| Processor Base Power (Intel) | 125 W | 55 W | A: 70 W higher |
| Maximum Turbo Power (Intel) | 241 W | 157 W | A: 84 W higher |
| Minimum Assured Power (Intel)The lower bound to which the laptop maker can reduce the CPU’s base power. | no data | 45 W | no data for A |
Cores and clocks
Cores
A16 (8P + 8E)
B24 (8P + 16E)
B: 8 moreCores of different types may differ in performance.
Threads
A24
B32
B: 8 moreBase clock
A3.2 GHz
Bno data
no data for BFor hybrid Intel CPUs, the P-core base clock is shown.
Max clock (Boost/Turbo)
A5.2 GHz
B5.4 GHz
B: 0.2 GHz more
Cache
L2 cache
A14 MB
Bno data
no data for BL3 cache
A30 MB
B36 MB
B: 6 MB more
Platform
Socket
ALGA1700
BFCBGA1964
differsProcess node
AIntel 7
BIntel 7
equal
Memory and interfaces
Memory type
ADDR4, DDR5
BDDR4, DDR5
equalMemory channels
A2
B2
equalOfficial memory speed
A4,800 MT/s
B5,600 MT/s
B: 800 MT/s moreFor controllers that support two generations, the speed for the newer memory type is shown.
Max memory capacity
A128 GB
B192 GB
B: 64 GB morePCI Express
APCIe 5.0 and 4.0, 20 lanes
BPCIe 5.0 and 4.0, 20 lanes
equalIntegrated graphics
AIntel UHD Graphics 770
BIntel UHD Graphics (13th gen)
differs
Power
Processor Base Power (Intel)
A125 W
B55 W
A: 70 W higherMaximum Turbo Power (Intel)
A241 W
B157 W
A: 84 W higherMinimum Assured Power (Intel)
Ano data
B45 W
no data for AThe 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 i9-12900K and Intel Core i9-13900HX fit the same motherboard?
No: Intel Core i9-12900K uses LGA1700, while Intel Core i9-13900HX uses FCBGA1964.
How many cores and threads do Intel Core i9-12900K and Intel Core i9-13900HX have?
Intel Core i9-12900K: 16 cores / 24 threads. Intel Core i9-13900HX: 24 cores / 32 threads (manufacturer data).
Do these CPUs have integrated graphics?
Intel Core i9-12900K: Intel UHD Graphics 770. Intel Core i9-13900HX: Intel UHD Graphics (13th gen).
Which is faster: Intel Core i9-12900K or Intel Core i9-13900HX?
It depends on the task: multi-thread performance: results disagree.
See also
Data sources (3)
- Intel — specifications of Intel Core i9-12900K, specifications of Intel Core i9-13900HXchecked 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 3.0.1, benchmark Blender Benchmark 3.1.0, benchmark Blender Benchmark 3.2.0, benchmark Blender Benchmark 3.2.1, benchmark Blender Benchmark 3.3.0, 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 5.0.0, benchmark Blender Benchmark 5.1.0, 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.