Core i9-13900K vs Ryzen 9 7945HX: specs and benchmark comparison
AIntel · Raptor Lake
Intel Core i9-13900K
- 24 cores / 32 threads
- up to 5.8 GHz
- LGA1700
October 20, 2022 · $589 at launch
Short verdict
Intel Core i9-13900K 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
A +11.5%Intel Core i9-13900K leads in this scenario (up to 11.5% 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 i9-13900K is better4
Cores 8 more24 (8P + 16E) vs 16
L2 cache 16 MB more32 MB vs 16 MB
Official memory speed 400 MT/s more5,600 MT/s vs 5,200 MT/s
Max memory capacity 128 GB more192 GB vs 64 GB
Where Ryzen 9 7945HX is better1
L3 cache 28 MB more64 MB vs 36 MB
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.
- 1.6% difference, within the threshold
Blender Benchmark 4.5.0
CPU, sum of scenes monster + junkshop + classroom · samples/min, higher is better
Core i9-13900K485.5 samples/minRyzen 9 7945HX493.5 samples/minPosition among tested models (89)
A · 485B · 4930200400600800Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min. The 1.6% difference is below the noticeable threshold (5%).
About the measurement and source
- A · Intel Core i9-13900K
485.5 samples/min · community measurement, sample 78 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 78 submissions (6 outliers excluded), interquartile range 454.31–520.78; submissions 2025-07-21 to 2026-11-11; CPU backend. Snapshot 2026-11-14.
- B · AMD Ryzen 9 7945HX
493.5 samples/min · community measurement, sample 51 · November 15, 2026
Blender Open Data (Blender Foundation)
Median of 51 submissions (3 outliers excluded), interquartile range 453.05–558.01; submissions 2025-07-19 to 2026-03-07; 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 (6)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0CPU, sum of scenes monster + junkshop + classroom | 487.3 | 443.1 | A +10% |
| Blender Benchmark 3.5.0CPU, sum of scenes monster + junkshop + classroom | 539.7 | 500.5 | A +7.8% |
| Blender Benchmark 3.6.0CPU, sum of scenes monster + junkshop + classroom | 519.7 | 475.7 | A +9.3% |
| Blender Benchmark 4.0.0CPU, sum of scenes monster + junkshop + classroom | 508.4 | 455.9 | A +11.5% |
| Blender Benchmark 4.3.0CPU, sum of scenes monster + junkshop + classroom | 469.3 | 465.5 | A +0.8% |
| Blender Benchmark 4.4.0CPU, sum of scenes monster + junkshop + classroom | 474.1 | 477.2 | B +0.7% |
Each benchmark version has its own scale: numbers are compared only within a row.
Reference results (9)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 5.1.1CPU, sum of scenes monster + junkshop + classroom | 534.1 | 521.7 | reference |
| Blender Benchmark 5.2.0CPU, sum of scenes monster + junkshop + classroom | 513.1 | 473.9 | reference |
| Blender Benchmark 3.2.1CPU, sum of scenes monster + junkshop + classroom | 546.6 | — | no pair |
| Blender Benchmark 3.3.0CPU, sum of scenes monster + junkshop + classroom | 570.5 | — | no pair |
| Blender Benchmark 3.4.0CPU, sum of scenes monster + junkshop + classroom | 553.5 | 521.6 | reference |
| Blender Benchmark 4.1.0CPU, sum of scenes monster + junkshop + classroom | 499.7 | 481.1 | reference |
| Blender Benchmark 5.0.0CPU, sum of scenes monster + junkshop + classroom | 486.7 | 211.8 | reference |
| Blender Benchmark 5.1.0CPU, sum of scenes monster + junkshop + classroom | 524 | 552.5 | reference |
| Blender Benchmark 5.3.0CPU, sum of scenes monster + junkshop + classroom | 506 | — | 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 i9-13900K | B · Ryzen 9 7945HX | Difference |
|---|---|---|---|
| Cores and clocks | |||
| CoresCores of different types may differ in performance. | 24 (8P + 16E) | 16 | A: 8 more |
| Threads | 32 | 32 | equal |
| Base clockFor hybrid Intel CPUs, the P-core base clock is shown. | 3 GHz | 2.5 GHz | A: 0.5 GHz more |
| Max clock (Boost/Turbo) | 5.8 GHz | 5.4 GHz | A: 0.4 GHz more |
| Cache | |||
| L1 cache | no data | 1,024 KB | no data for A |
| L2 cache | 32 MB | 16 MB | A: 16 MB more |
| L3 cache | 36 MB | 64 MB | B: 28 MB more |
| Platform | |||
| Socket | LGA1700 | FL1 | differs |
| Process node | Intel 7 | TSMC 5 nm FinFET | differs |
| Memory and interfaces | |||
| Memory type | DDR4, DDR5 | DDR5 | differs |
| Memory channels | 2 | 2 | equal |
| Official memory speedFor controllers that support two generations, the speed for the newer memory type is shown. | 5,600 MT/s | 5,200 MT/s | A: 400 MT/s more |
| Max memory capacity | 192 GB | 64 GB | A: 128 GB more |
| PCI Express | PCIe 5.0 and 4.0, 20 lanes | PCIe 5.0 | differs |
| Integrated graphics | Intel UHD Graphics 770 | AMD Radeon 610M | differs |
| Power | |||
| TDP (AMD method)AMD TDP, AMD PPT, Intel Base Power (PL1) and Max Turbo Power (PL2) are different metrics and are not compared with each other. For laptop CPUs, the laptop maker configures the TDP. | no data | 55 W (configurable: 55–75 W) | no data for A |
| Processor Base Power (Intel) | 125 W | no data | no data for B |
| Maximum Turbo Power (Intel) | 253 W | no data | no data for B |
Cores and clocks
Cores
A24 (8P + 16E)
B16
A: 8 moreCores of different types may differ in performance.
Threads
A32
B32
equalBase clock
A3 GHz
B2.5 GHz
A: 0.5 GHz moreFor hybrid Intel CPUs, the P-core base clock is shown.
Max clock (Boost/Turbo)
A5.8 GHz
B5.4 GHz
A: 0.4 GHz more
Cache
L1 cache
Ano data
B1,024 KB
no data for AL2 cache
A32 MB
B16 MB
A: 16 MB moreL3 cache
A36 MB
B64 MB
B: 28 MB more
Platform
Socket
ALGA1700
BFL1
differsProcess node
AIntel 7
BTSMC 5 nm FinFET
differs
Memory and interfaces
Memory type
ADDR4, DDR5
BDDR5
differsMemory channels
A2
B2
equalOfficial memory speed
A5,600 MT/s
B5,200 MT/s
A: 400 MT/s moreFor controllers that support two generations, the speed for the newer memory type is shown.
Max memory capacity
A192 GB
B64 GB
A: 128 GB morePCI Express
APCIe 5.0 and 4.0, 20 lanes
BPCIe 5.0
differsIntegrated graphics
AIntel UHD Graphics 770
BAMD Radeon 610M
differs
Power
TDP (AMD method)
Ano data
B55 W (configurable: 55–75 W)
no data for AAMD TDP, AMD PPT, Intel Base Power (PL1) and Max Turbo Power (PL2) are different metrics and are not compared with each other. For laptop CPUs, the laptop maker configures the TDP.
Processor Base Power (Intel)
A125 W
Bno data
no data for BMaximum Turbo Power (Intel)
A253 W
Bno data
no data for B
“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 i9-13900K and AMD Ryzen 9 7945HX fit the same motherboard?
No: Intel Core i9-13900K uses LGA1700, while AMD Ryzen 9 7945HX uses FL1.
How many cores and threads do Intel Core i9-13900K and AMD Ryzen 9 7945HX have?
Intel Core i9-13900K: 24 cores / 32 threads. AMD Ryzen 9 7945HX: 16 cores / 32 threads (manufacturer data).
Do these CPUs have integrated graphics?
Intel Core i9-13900K: Intel UHD Graphics 770. AMD Ryzen 9 7945HX: AMD Radeon 610M.
Which is faster: Intel Core i9-13900K or AMD Ryzen 9 7945HX?
Intel Core i9-13900K leads in every scenario with comparable benchmarks: multi-thread performance. This does not imply an advantage in tasks without benchmarks.
See also
Data sources (4)
- Intel — specifications of Intel Core i9-13900Kchecked November 7, 2026
- AMD — specifications of AMD Ryzen 9 7945HXchecked 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 3.3.0, 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.