Intel Core i7 6700K vs i5 6600K: performance comparison
VS
Intel Core i7 6700K
Intel Core i5 6600K
We compared two 4-core desktop CPUs: the 4.0 GHz Intel Core i7 6700K against the 3.5 GHz i5 6600K. On this page, you’ll find out which processor has better performance in benchmarks, games and other useful information.
- Review
- Differences
- Performance
- Specs
- Comments
Review
General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Core i7 6700K
52
Core i5 6600K
50
Multi-Core Performance
Measure performance when all cores are involved
Core i7 6700K
19
Core i5 6600K
15
Power Efficiency
The efficiency score of electricity consumption
Core i7 6700K
44
Core i5 6600K
44
NanoReview Final Score
Generic CPU rating
Core i7 6700K
38
Core i5 6600K
36
Key Differences
What are the key differences between 6600K and 6700K
Advantages of Intel Core i7 6700K
- Unlocked multiplier
- Has 2048 KB larger L3 cache size
- 8% higher Turbo Boost frequency (4.
2 GHz vs 3.9 GHz)
Promotion
Benchmarks
Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Core i7 6700K
+9%
1140
Core i5 6600K
1048
Cinebench R23 (Multi-Core)
Core i7 6700K
+43%
5673
Core i5 6600K
3968
Passmark CPU (Single-Core)
Core i7 6700K
+7%
2521
Core i5 6600K
2354
Passmark CPU (Multi-Core)
Core i7 6700K
+40%
8965
Core i5 6600K
6392
Geekbench 5 (Single-Core)
Core i7 6700K
1106
Core i5 6600K
+3%
1137
Geekbench 5 (Multi-Core)
Core i7 6700K
+14%
4317
Core i5 6600K
3801
Submit your Cinebench R23 result
Specifications
Full technical specification of Intel Core i7 6700K and i5 6600K
General
| Vendor | Intel | Intel |
| Released | August 5, 2015 | August 5, 2015 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Skylake | Skylake |
| Model number | i7-6700K | i5-6600K |
| Integrated GPU | HD Graphics 530 | HD Graphics 530 |
| P-Cores | 4 | 4 |
| P-Threads | 8 | 4 |
| Base Frequency (P) | 4. 0 GHz |
3.5 GHz |
| Turbo Boost Frequency (P) | 4.2 GHz | 3.9 GHz |
| Total Cores | 4 | 4 |
| Total Threads | 8 | 4 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 40x | 35x |
| Bus Bandwidth | 8 GT/s | 8 GT/s |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 256K (per core) | 256K (per core) |
| L3 Cache | 8MB (shared) | 6MB (shared) |
| Unlocked Multiplier | Yes | No |
Package
| Transistors | 1. 75 billions |
— |
| Fabrication process | 14 nm | 14 nm |
| TDP (PL1) | 91 W | 91 W |
| Socket | LGA-1151 | LGA-1151 |
| Integrated Graphics | Intel HD Graphics 530 | Intel HD Graphics 530 |
| GPU Boost Clock | 1150 MHz | 1150 MHz |
Memory Support
| Memory types | — DDR4-2133 — DDR3L-1600 |
— DDR4-2133 — DDR3L-1600 |
| Memory Size | 64 GB | 64 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 34.1 GB/s | 34. 1 GB/s |
| ECC Support | No | No |
| Official site | Intel Core i7 6700K official page | Intel Core i5 6600K official page |
| PCI Express Version | 3.0 | 3.0 |
| PCI Express Lanes | 16 | 16 |
| Extended instructions | SSE4.1, SSE4.2, AVX-2 | SSE4.1, SSE4.2, AVX-2 |
Cast your vote
Choose between two processors
Core i7 6700K
14 (51.9%)
Core i5 6600K
13 (48.1%)
Total votes: 27
Сompetitors
1.
Intel Core i5 8400 vs i7 6700K
2.
AMD Ryzen 5 5600X vs Intel Core i7 6700K
3.
Intel Core i5 12600K vs i7 6700K
4.
Intel Core i5 12400F vs i7 6700K
Compare other CPUs (540+)
So which CPU will you choose: Intel Core i5 6600K or i7 6700K?
Name
Message
Promotion
i5-6600K vs i7-6700K — Call of Duty Modern Warfare with GTX 1660 Benchmarks 1080p, 1440p, Ultrawide, 4K Comparison
GTX 1660 with
Intel Core i5-6600K @ 3.50GHz
Call of Duty Modern Warfare
GTX 1660 with
Intel Core i7-6700K @ 4.00GHz
i5-6600K
i7-6700K
Multi-Thread Performance
8053 Pts
11112 Pts
Single-Thread Performance
2147 Pts
2352 Pts
Call of Duty Modern Warfare
i5-6600K vs i7-6700K in Call of Duty Modern Warfare using GTX 1660 — CPU Performance comparison at Ultra, High, Medium, and Low Quality Settings with 1080p, 1440p, Ultrawide, 4K resolutions
i5-6600K
i7-6700K
Ultra Quality
| Resolution | Frames Per Second |
|---|---|
| 1080p |
92. |
| 1080p |
98.8 FPS |
| 1440p |
66.4 FPS |
| 1440p |
71.2 FPS |
| 2160p |
39.7 FPS |
| 2160p |
42.5 FPS |
| w1440p |
56.8 FPS |
| w1440p |
60.8 FPS |
3 FPSHigh Quality
| Resolution | Frames Per Second |
|---|---|
| 1080p |
147.3 FPS |
| 1080p |
156.0 FPS |
| 1440p |
111.4 FPS |
| 1440p |
118.2 FPS |
| 2160p |
71. |
| 2160p |
76.1 FPS |
| w1440p |
97.5 FPS |
| w1440p |
103.4 FPS |
7 FPSMedium Quality
| Resolution | Frames Per Second |
|---|---|
| 1080p |
202.3 FPS |
| 1080p |
213.1 FPS |
| 1440p |
156.4 FPS |
| 1440p |
165.3 FPS |
| 2160p |
103.7 FPS |
| 2160p |
109.6 FPS |
| w1440p |
138.3 FPS |
| w1440p |
145. |
9 FPSLow Quality
| Resolution | Frames Per Second |
|---|---|
| 1080p |
312.2 FPS |
| 1080p |
327.5 FPS |
| 1440p |
246.5 FPS |
| 1440p |
259.3 FPS |
| 2160p |
167.8 FPS |
| 2160p |
176.7 FPS |
| w1440p |
219.7 FPS |
| w1440p |
231.1 FPS |
i5-6600K
i7-6700K
- The i7-6700K has higher Level 3 Cache. This is useful when you have substantial multiprocessing workloads, many computationally intense simultaneous processes.
More likely on a server, less on a personally used computer for interactive desktop workloads. - The i7-6700K has more threads. Larger programs are divided into threads (small sections) so that the processor can execute them simultaneously to get faster execution.
- For some games, a cpu with a higher clock speed, or in a technical name IPC (Instructions per clock), has better results than other CPU’s with higher core count and lower core speed.
- The i7-6700K has a higher turbo clock boost. Turbo Boost is a CPU feature that will run CPU clock speed faster than its base clock, if certain conditions are present. It will enable older software that runs on fewer cores, to perform better on newer hardware. Since games are software too, it is also applicable to them.
Compare i5-6600K vs i7-6700K specifications
i5-6600K vs i7-6700K Architecture
| i5-6600K | i7-6700K | |
|---|---|---|
| Codename | Skylake | Skylake |
| Generation | Core i5 (Skylake) |
Core i7 (Skylake) |
| Market | Desktop | Desktop |
| Memory Support | DDR4 | DDR4 |
| Part# | SR2BV | SR2L0 |
| Production Status | unknown | Active |
| Released | Jul 2015 | Aug 2015 |
i5-6600K vs i7-6700K Cache
| i5-6600K | i7-6700K | |
|---|---|---|
| Cache L1 | 64K (per core) | 64K (per core) |
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 6MB (shared) | 8MB (shared) |
i5-6600K vs i7-6700K Cores
| i5-6600K | i7-6700K | |
|---|---|---|
| # of Cores | 4 | 4 |
| # of Threads | 4 | 8 |
| Integrated Graphics | N/A | HD Graphics 530 |
| SMP # CPUs | 1 | 1 |
i5-6600K vs i7-6700K Features
| i5-6600K | i7-6700K | |
|---|---|---|
| MMX SSE SSE2 SSE3 SSSE3 SSE4.  2AVX AVX2 EIST Intel 64 XD bit VT-x AES-NI CLMUL FMA3 F16C BMI1 BMI2 Boost 2.0 |
MMX SSE SSE2 SSE3 SSSE3 SSE4.2 AVX AVX2 EIST Intel 64 XD bit VT-x VT-d HTT AES-NI TSX TXT CLMUL FMA3 F16C BMI1 BMI2 Boost 2.0 |
i5-6600K vs i7-6700K Notes
| i5-6600K | i7-6700K |
|---|
i5-6600K vs i7-6700K Performance
| i5-6600K | i7-6700K | |
|---|---|---|
| Base Clock | 100 MHz | 100 MHz |
| Frequency | 3.5 GHz | 4 GHz |
| Multiplier | 35.0x | 40.0x |
| Multiplier Unlocked | Yes | No |
| TDP | 95 W | 95 W |
| Turbo Clock | up to 3.9 GHz | up to 4.2 GHz |
| Voltage | unknown | unknown |
i5-6600K vs i7-6700K Physical
| i5-6600K | i7-6700K | |
|---|---|---|
| Die Size | unknown | unknown |
| Foundry | Intel | Intel |
| Package | FC-LGA12C | |
| Process Size | 14 nm | 14 nm |
| Socket | Intel Socket 1151 | Intel Socket 1151 |
| Transistors | unknown | unknown |
| tCaseMax | 72°C | 72°C |
Share Your Comments 95
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Intel Core i7 6700K vs i5 6600K:
performance comparison
VS
Intel Core i7 6700K
Intel Core i5 6600K
Which is better: Intel Core i7 6700K at 4.
0 GHz (with Turbo Boost up to 4.2) or i5 6600K at 3.5 GHz (with Turbo Boost up to 3.9)? To find out, read our comparative testing of these 4-core desktop processors in popular benchmarks, games and heavy applications.
- Review
- Differences
- Performance
- Features
- Comments
Overview
Overview and comparison of the main metrics from NanoReview
Single-threaded performance
Single-core rating
Core i7 6700K
52
Core i5 6600K
50
Multi-threaded performance
All-core benchmarks
Core i7 6700K
19
Core i5 6600K
15
Power Efficiency
Chip Power Efficiency
Core i7 6700K
44
Core i5 6600K
44
NanoReview rating
Final processor score
Core i7 6700K
38
Core i5 6600K
36
Key differences
What are the main differences between 6600K and 6700K
Reasons to choose Intel Core i7 6700K
- Unlocked multiplier
- Has 2048 KB more L3 cache
- 8% higher Turbo Boost frequency (4.
2 GHz vs 3.9 GHz)
Benchmark tests
Compare the results of processor tests in benchmarks
Cinebench R23 (single core)
Core i7 6700K
+9%
1140
Core i5 6600K
1048
Cinebench R23 (multi-core)
Core i7 6700K
+43%
5673
Core i5 6600K
3968
Passmark CPU (single core)
Core i7 6700K
+7%
2521
Core i5 6600K
2354
Passmark CPU (multi-core)
Core i7 6700K
+40%
8965
Core i5 6600K
6392
Geekbench 5 (single core)
Core i7 6700K
1106
Core i5 6600K
+3%
1137
Geekbench 5 (multi-core)
Core i7 6700K
+14%
4317
Core i5 6600K
3801
Add your Cinebench R23 results
Specifications
List of full specifications of Intel Core i7 6700K and i5 6600K
General information
| Manufacturer | Intel | Intel |
| Release date | August 5, 2015 | August 5, 2015 |
| Type | Desktop | Desktop |
| Instruction set architecture | x86-64 | x86-64 |
| Codename | Skylake | Skylake |
| Model number | i7-6700K | i5-6600K |
| Integrated graphics | HD Graphics 530 | HD Graphics 530 |
Processor
| cores | 4 | 4 |
| Threads | 8 | 4 |
| Frequency | 4. 0 GHz |
3.5 GHz |
| Max. frequency in Turbo Boost | 4.2 GHz | 3.9 GHz |
| Number of cores | 4 | 4 |
| Number of threads | 8 | 4 |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 40x | 35x |
| Tire speed | 8 GT/s | 8 GT/s |
| Level 1 cache | 64KB (per core) | 64KB (per core) |
| Level 2 cache | 256KB (per core) | 256KB (per core) |
| Level 3 cache | 8MB (shared) | 6MB (shared) |
| Unlocked multiplier | Yes | No |
| Number of transistors | 1.75 billion | — |
| Process | 14 nanometers | 14 nanometers |
| Power consumption (TDP) | 91W | 91W |
| Socket | LGA-1151 | LGA-1151 |
| Integrated graphics | Intel HD Graphics 530 | Intel HD Graphics 530 |
| Boost GPU frequency | 1150 MHz | 1150 MHz |
Memory support
| Memory type | — DDR4-2133 — DDR3L-1600 |
— DDR4-2133 — DDR3L-1600 |
Max.
|