Combined benchmark scores for both processors
Head-to-head processor comparison
Combined benchmark scores for both processors
Out of 2,060 results in the database
Rank #106
Rank #41
Ryzen 9 7945HX wins by 11.2% (Rank #106 vs #41)
Out of 2,060 results in the database
Rank #92
Rank #29
Ryzen 9 7945HX wins by 13.2% (Rank #92 vs #29)
Out of 2,060 results in the database
Rank #145
Rank #88
Ryzen 9 7945HX wins by 8% (Rank #145 vs #88)
Out of 1,771 results in the database
Rank #141
Rank #61
Ryzen 9 7945HX wins by 14.4% (Rank #141 vs #61)
Out of 1,771 results in the database
Rank #129
Rank #62
Ryzen 9 7945HX wins by 12.6% (Rank #129 vs #62)
Out of 1,771 results in the database
Rank #158
Rank #78
Ryzen 9 7945HX wins by 11.2% (Rank #158 vs #78)
Side-by-side comparison of key specifications
| Specification | Ryzen 9 3900X | Ryzen 9 7945HX | Diff |
|---|---|---|---|
| Cores |
12
|
16
|
-25% |
| Threads |
24
|
32
|
-25% |
| Base Frequency |
3,800 MHz
|
2,500 MHz
|
+34.2% |
| Clock Multiplier |
38x
|
25x
|
+34.2% |
| L1 Cache |
768 KB
|
62 KB
|
+91.9% |
| L2 Cache |
6 MiB
|
1 MiB
|
+84.1% |
| L3 Cache |
64 MiB
|
61 MiB
|
+4.6% |
| Memory Channels |
2
|
-- | |
| Maximum Memory |
128 GB
|
-- | |
| Max Bandwidth |
48 GB/s
|
-- | |
| PCIe Lanes |
20
|
-- | |
| Max CPUs |
1
|
-- | |
| TDP (lower is better) |
105 W
|
55 W
|
47.6% more |
| Process (lower is better) |
7 nm
|
5 nm
|
28.6% more |
| Specification | Ryzen 9 3900X | Ryzen 9 7945HX |
|---|---|---|
| Designer | AMD | AMD |
| Family | Ryzen | -- |
| Series | 3000 | -- |
| Model Number | 3900X | -- |
| Microarchitecture | Zen 2 | -- |
| Core Name | Matisse | Dragon Range |
| Socket | Socket | Socket FL1 |
| Package | µOPGA-1331 | µFC-BGAFL1 |
| Memory Type | DDR4-3200 | DDR5 |
| ECC Support | Yes | -- |
| PCIe Revision | 4.0 | -- |
| PCIe Configuration | 1x16+x4, 2x8+x4, 1x8+2x4+x4 | -- |
| Market Segment | Desktop | Mobile |
| Release Price | $499.00 | -- |
| Locked Multiplier | No | No |
Designer
Family
Series
Model Number
Microarchitecture
Core Name
Socket
Package
Memory Type
ECC Support
PCIe Revision
PCIe Configuration
Market Segment
Release Price
Locked Multiplier
Manufacturing process and die characteristics
| Specification | Ryzen 9 3900X | Ryzen 9 7945HX |
|---|---|---|
| Process | 7 nm | 5 nm |
| Die Area | 74 mm² | 71 mm² |
| Transistor Count | 7,600 | 13,140 |
| Manufacturer | TSMC | TSMC |
| Technology | CMOS | -- |
| Word Size | 64-bit | -- |
| ISA | x86-64 (x86) | -- |
Process
Die Area
Transistor Count
Manufacturer
Technology
Word Size
ISA
Supported instruction set extensions comparison
| Extension | Ryzen 9 3900X | Ryzen 9 7945HX |
|---|---|---|
| ABM | ||
| ADX | ||
| AES | ||
| AMD-V | ||
| AMD-Vi | ||
| AVX | ||
| AVX-512 | ||
| AVX2 | ||
| BMI1 | ||
| BMI2 | ||
| Boost 2 | ||
| CLMUL | ||
| EMMX | ||
| F16C | ||
| FMA3 | ||
| FPU | ||
| MMX | ||
| NX | ||
| Protected | ||
| RdRand | ||
| Real | ||
| SHA | ||
| SMEP | ||
| SMM | ||
| SMT | ||
| SSE | ||
| SSE2 | ||
| SSE3 | ||
| SSE4.1 | ||
| SSE4.2 | ||
| SSE4a | ||
| SSSE3 | ||
| SenseMI | ||
| XFR 2 | ||
| x86-16 | ||
| x86-32 | ||
| x86-64 |
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