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 #151
Rank #1,693
Core i9-7940X wins by 33.5% (Rank #151 vs #1693)
Out of 2,060 results in the database
Rank #237
Rank #1,718
Core i9-7940X wins by 33.3% (Rank #237 vs #1718)
Out of 2,060 results in the database
Rank #141
Rank #1,499
Core i9-7940X wins by 33.7% (Rank #141 vs #1499)
Out of 1,771 results in the database
Rank #216
Rank #1,442
Core i9-7940X wins by 16.1% (Rank #216 vs #1442)
Out of 1,771 results in the database
Rank #195
Rank #1,399
Core i9-7940X wins by 18.9% (Rank #195 vs #1399)
Out of 1,771 results in the database
Rank #170
Rank #1,459
Core i9-7940X wins by 19.3% (Rank #170 vs #1459)
Side-by-side comparison of key specifications
| Specification | Core i9-7940X | Phenom II X3 705e | Diff |
|---|---|---|---|
| Cores |
14
|
3
|
+78.6% |
| Threads |
28
|
3
|
+89.3% |
| Base Frequency |
3,100 MHz
|
2,500 MHz
|
+19.4% |
| Turbo Frequency (1 core) |
4,300 MHz
|
-- | |
| Turbo Frequency (2 cores) |
4,300 MHz
|
-- | |
| Clock Multiplier |
31x
|
13x
|
+59.7% |
| L1 Cache |
896 KB
|
125 KB
|
+86.1% |
| L2 Cache |
14 MiB
|
0 MiB
|
+96.5% |
| L3 Cache |
19 MiB
|
6 MiB
|
+70.3% |
| Memory Channels |
4
|
-- | |
| Maximum Memory |
128 GB
|
-- | |
| Max Bandwidth |
79 GB/s
|
-- | |
| PCIe Lanes |
44
|
-- | |
| Max CPUs |
1
|
-- | |
| TDP (lower is better) |
165 W
|
65 W
|
60.6% more |
| Process (lower is better) |
14 nm
|
45 nm
|
68.9% less |
| Specification | Core i9-7940X | Phenom II X3 705e |
|---|---|---|
| Designer | Intel | AMD |
| Family | Core | -- |
| Series | i9-7900 | -- |
| Model Number | i9-7940X | -- |
| Microarchitecture | Skylake | -- |
| Core Name | Skylake | Heka |
| Core Family | 6 | -- |
| Core Model | 85 | -- |
| Socket | Socket | Socket AM3 |
| Package | FCLGA-2066 | µPGA |
| Chipset | Lewisburg | -- |
| Memory Type | DDR4-2666 | DDR3 |
| ECC Support | No | -- |
| PCIe Revision | 3.0 | -- |
| PCIe Configuration | x16, x8, x4 | -- |
| Market Segment | Desktop | Desktop |
| Release Price | $1,399.00 | -- |
| Locked Multiplier | No | Yes |
Designer
Family
Series
Model Number
Microarchitecture
Core Name
Core Family
Core Model
Socket
Package
Chipset
Memory Type
ECC Support
PCIe Revision
PCIe Configuration
Market Segment
Release Price
Locked Multiplier
Manufacturing process and die characteristics
| Specification | Core i9-7940X | Phenom II X3 705e |
|---|---|---|
| Process | 14 nm | 45 nm |
| Die Area | 484 mm² | 258 mm² |
| Transistor Count | -- | 0.00 billion |
| Manufacturer | Intel | GlobalFoundries |
| 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 | Core i9-7940X | Phenom II X3 705e |
|---|---|---|
| 3DNow! | ||
| ABM | ||
| ADX | ||
| AES | ||
| AMD-V | ||
| AVX | ||
| AVX-512 | ||
| AVX-512 | ||
| AVX2 | ||
| AVX512BW | ||
| AVX512CD | ||
| AVX512DQ | ||
| AVX512F | ||
| AVX512VL | ||
| BMI1 | ||
| BMI2 | ||
| CLMUL | ||
| EIST | ||
| EMMX | ||
| EPT | ||
| F16C | ||
| FMA | ||
| FMA3 | ||
| FPU | ||
| Flex Memory | ||
| HT | ||
| MMX | ||
| NX | ||
| Protected | ||
| RdRand | ||
| Real | ||
| SMM | ||
| SSE | ||
| SSE2 | ||
| SSE3 | ||
| SSE4.1 | ||
| SSE4.2 | ||
| SSE4a | ||
| SSSE3 | ||
| TBMT 3.0 | ||
| TBT 1.0 | ||
| TBT 2.0 | ||
| TSX | ||
| TXT | ||
| VT-d | ||
| VT-x | ||
| x86-16 | ||
| x86-32 | ||
| x86-64 |
Your experience on this site will be improved by allowing cookies.