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 #365
Rank #1,347
Core i7-6700K wins by 22.1% (Rank #365 vs #1347)
Out of 2,060 results in the database
Rank #322
Rank #1,354
Core i7-6700K wins by 24.4% (Rank #322 vs #1354)
Out of 2,060 results in the database
Rank #416
Rank #1,337
Core i7-6700K wins by 18.4% (Rank #416 vs #1337)
Out of 1,771 results in the database
Rank #609
Number Crunching not available for both processors.
Out of 1,771 results in the database
Rank #609
Data Processing not available for both processors.
Out of 1,771 results in the database
Rank #573
Physics & Compute not available for both processors.
Side-by-side comparison of key specifications
| Specification | Core i7-6700K | Intel Core i7-640M | Diff |
|---|---|---|---|
| Cores |
4
|
2
|
+50% |
| Threads |
8
|
4
|
+50% |
| Base Frequency |
4,000 MHz
|
2,800 MHz
|
+30% |
| Turbo Frequency (1 core) |
4,200 MHz
|
3,467 MHz
|
+17.5% |
| Turbo Frequency (2 cores) |
4,000 MHz
|
3,200 MHz
|
+20% |
| Turbo Frequency (3 cores) |
4,000 MHz
|
-- | |
| Turbo Frequency (4 cores) |
4,000 MHz
|
-- | |
| Clock Multiplier |
40x
|
21x
|
+47.5% |
| L1 Cache |
256 KB
|
128 KB
|
+50% |
| L2 Cache |
1 MiB
|
1 MiB
|
+50% |
| L3 Cache |
8 MiB
|
4 MiB
|
+50% |
| Memory Channels |
2
|
2
|
0% |
| Maximum Memory |
64 GB
|
8 GB
|
+87.5% |
| Max Bandwidth |
32 GB/s
|
16 GB/s
|
+50% |
| Max CPUs |
1
|
1
|
0% |
| TDP (lower is better) |
91 W
|
35 W
|
61.5% more |
| Process (lower is better) |
14 nm
|
32 nm
|
56.3% less |
| Specification | Core i7-6700K | Intel Core i7-640M |
|---|---|---|
| Designer | Intel | Intel |
| Family | Core | Core |
| Series | i7-6000 | i7-600 |
| Model Number | i7-6700K | i7-640M |
| Microarchitecture | Skylake | Westmere |
| Core Name | Skylake | Arrandale |
| Core Family | 6 | 6 |
| Core Model | 94 | 37 |
| Socket | LGA-1151 | -- |
| Package | FCLGA-1151 | rPGA-988A and BGA-1288 |
| Chipset | Sunrise | Ibex |
| Memory Type | DDR3L-1600 and DDR4-2133 | DDR3-1066 |
| ECC Support | No | No |
| Market Segment | Desktop | Mobile |
| Release Price | $350.00 | $346.00 |
| Locked Multiplier | No | Yes |
Designer
Family
Series
Model Number
Microarchitecture
Core Name
Core Family
Core Model
Socket
Package
Chipset
Memory Type
ECC Support
Market Segment
Release Price
Locked Multiplier
Manufacturing process and die characteristics
| Specification | Core i7-6700K | Intel Core i7-640M |
|---|---|---|
| Process | 14 nm | 32 nm |
| Die Area | 122 mm² | 81 mm² |
| Transistor Count | -- | 0.38 billion |
| Manufacturer | Intel | Intel |
| Technology | CMOS | CMOS |
| Word Size | 64-bit | 64-bit |
| ISA | x86-64 (x86) | x86-64 (x86) |
Process
Die Area
Transistor Count
Manufacturer
Technology
Word Size
ISA
Integrated GPU specifications comparison
| Specification | Core i7-6700K | Intel Core i7-640M |
|---|---|---|
| GPU | HD Graphics 530 | HD |
| GPU Designer | Intel | Intel |
| GPU Max Frequency | 1150 MHz | 766 MHz |
| Execution Units | 24 | 12 |
GPU
GPU Designer
GPU Max Frequency
Execution Units
Supported instruction set extensions comparison
| Extension | Core i7-6700K | Intel Core i7-640M |
|---|---|---|
| ABM | ||
| ADX | ||
| AES | ||
| AVX | ||
| AVX2 | ||
| BMI1 | ||
| BMI2 | ||
| BPT | ||
| CLMUL | ||
| EIST | ||
| EMMX | ||
| EPT | ||
| F16C | ||
| FMA | ||
| FMA3 | ||
| FPU | ||
| Flex Memory | ||
| HT | ||
| IPT | ||
| MMX | ||
| MPX | ||
| NX | ||
| Protected | ||
| RdRand | ||
| Real | ||
| SGX | ||
| SMEP | ||
| SMM | ||
| SSE | ||
| SSE2 | ||
| SSE3 | ||
| SSE4.1 | ||
| SSE4.2 | ||
| SSSE3 | ||
| Secure Key | ||
| TBT 1.0 | ||
| TBT 2.0 | ||
| TSX | ||
| TXT | ||
| VT-d | ||
| VT-x | ||
| vPro | ||
| x86-16 | ||
| x86-32 | ||
| x86-64 |
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