Intel Core i7-6700K vs Intel Core i5-9400F

VS
Performance
Core i7-6700K0% better
11,22830% of 36,991
Core i5-9400F
11,18530% of 36,991

The Core i7-6700K has 0% better performance than the Core i5-9400F for the 3DMark 11 Performance Physics benchmark.

Performance per dollar
Core i7-6700K
33.1227% of 121.53
Core i5-9400F
No data available

The Core i7-6700K has 27% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: Intel Core i5-13400F.

Shop Core i7-6700K
Shop Core i5-9400F
As an Amazon Associate I earn from qualifying purchases.

Summary

#

About the Intel Core i7-6700K CPU

The Intel Core i7-6700K is an end-of-life 4-core (8-thread) processor built for the desktop CPU market. It launched in Q3 2015 with a suggested retail price of $339. It is part of Intel's Core i7 lineup, which is based on the Skylake microarchitecture. The i7-6700K is compatible with Intel Socket 1151 motherboards and is fabricated on Intel's 14 nm manufacturing process. It features the HD Graphics 530 integrated graphics solution.

Memory and Cache

The Core i7-6700K supports DDR3, DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i7-6700K has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 256 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 8 MB.

Cores and Clock Speeds

The Core i7-6700K features 4 total cores which can process 8 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 4.0 GHz, and it can boost up to 4.2 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.

Integrated Graphics

The Core i7-6700K includes an integrated graphics solution called HD Graphics 530. This graphics processor is directly integrated into the CPU and is not as powerful as a dedicated graphics card. While integrated graphics can handle basic tasks like web browsing and office applications, it is not suitable for more demanding activities such as gaming or video editing, where a dedicated graphics card offers superior performance.

Benchmark Performance & Value

The Core i7-6700K has the 217th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 30.35% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 11,228 score and $339 launch price (MSRP) gives it a performance per dollar of 33.12. This is the 109th best in value for the 3DMark 11 Perf. Physics benchmark.

About the Intel Core i5-9400F CPU

The Intel Core i5-9400F is an end-of-life 6-core (6-thread) processor built for the desktop CPU market. It launched in Q1 2019. It is part of Intel's Core i5 lineup, which is based on the Coffee Lake Refresh microarchitecture. The i5-9400F is compatible with Intel Socket 1151 motherboards and is fabricated on Intel's 14 nm manufacturing process.

Memory and Cache

The Core i5-9400F supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i5-9400F has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 256 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 9 MB.

Cores and Clock Speeds

The Core i5-9400F features 6 total cores which can process 6 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 2.9 GHz, and it can boost up to 4.1 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.

Integrated Graphics

The Core i5-9400F does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.

Benchmark Performance

The Core i5-9400F has the 219th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 30.24% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.

General Info

General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.

InfoCore i7-6700KCore i5-9400F
ManufacturerIntelIntel
SeriesCore i7Core i5
Market SegmentDesktopDesktop
Release DateQ3 2015Q1 2019
Launch Price (MSRP)$339--
Production StatusEnd-of-lifeEnd-of-life
ShopCheck PriceCheck Price

Benchmark Performance

#
Performance
Core i7-6700K0% better
11,22830% of 36,991
Core i5-9400F
11,18530% of 36,991

The Core i7-6700K has 0% better performance than the Core i5-9400F for the 3DMark 11 Performance Physics benchmark.

The Core i7-6700K is ranked 217th with a score of 11,228, and the Core i5-9400F is ranked 219th with a score of 11,185.

Performance per dollar
Core i7-6700K
33.1227% of 121.53
Core i5-9400F
No data available

The Core i7-6700K has 63% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: AMD Ryzen 9 7950X3D.

Core i7-6700K's 33.12 performance per dollar ranks it 109th among the other benchmarked CPUs in our database.

Relative Performance

The average score in the benchmark test can be compared to similar CPUs to assess relative performance. Generally, powerful CPUs tend to have higher scores.

Choose Baseline CPU:Core i7-6700K or
CPUBenchmark Performance
Ryzen 5 2600X12,074+8%
Core i7-4960X11,992+7%
Core i7-7700K11,813+5%
Core i7-8086K11,554+3%
Core i7-6700K11,228
Core i5-9400F11,185-0%
Ryzen 5 160011,164-1%
Core i7-4790K10,886-3%
Core i5-8600K10,833-4%
Core i7-770010,739.5-4%

Relative Value For Money

The average performance per dollar in the benchmark test can be compared to similar CPUs to assess relative value. A higher score implies a better value for your money.

Choose Baseline CPU:Core i7-6700K orCore i5-9400F
CPUPerformance Per Dollar
Core i7-8700K41.13+24%
Core i5-11400T40.21+21%
Ryzen 7 170038.67+17%
Core i7-9700K38.07+15%
Core i7-377034.18+3%
Core i7-6700K33.12
Core i7-670032.45-2%
Core i7-4790K31.1-6%
Core i7-3770K29.45-11%
Core i7-479029.27-12%

Benchmark Scores

This table showcases the average performance scores achieved by both CPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful CPUs tend to have higher scores.

  • Popular
BenchmarkCore i7-6700KCore i5-9400F
3DMark 11 Performance Physics
11,228
(+0.38%)
11,185
3DMark Time Spy CPU
--
5,777
Cinebench R15 Multi-Core
880
984
(+11.82%)
Cinebench R15 Single-Core
177.5
(+2.6%)
173
Geekbench 6.2 Multi-Core
4,946
(+1.1%)
4,892
Geekbench 6.2 Single-Core
1,507
(+7.49%)
1,402
CPU Mark Multi-Thread
8,929
9,469
(+6.05%)
CPU Mark Single-Thread
2,505
(+2.75%)
2,438
Benchmarks Source: Notebookcheck

Technical Specs

#

Manufacturing Details

Information about the CPU's manufacturing like its foundry, process size, and transistor count.

SpecCore i7-6700KCore i5-9400F
ManufacturerIntelIntel
FoundryIntelIntel
Process Size14 nm14 nm

Architecture

CPU architecture specs like its memory channels, memory support, and microarchitecture. Newer CPU architectures can minimize bottlenecks and improve execution efficiency using more advanced techniques.

SpecCore i7-6700KCore i5-9400F
SeriesCore i7Core i5
MicroarchitectureSkylakeCoffee Lake Refresh
CodenameSkylakeCoffee Lake
Memory SupportDDR3, DDR4DDR4
Memory ChannelsDual-channelDual-channel
ECC MemoryNoNo

Cores & Clock Speeds

Processing power information like its cores and clock speed. These specs impact how fast they can handle instructions and tasks. These have a strong impact on the CPU's performance.

SpecCore i7-6700KCore i5-9400F
Cores46
Threads86
Clock Speed4.0 GHz2.9 GHz
Turbo Clock4.2 GHz4.1 GHz
Base Clock100 MHz100 MHz
Multiplier40.0x29.0x
Multiplier UnlockedYesNo

Cache

CPU cache specs like its L1 & L2 cache. These provide the CPU with a small, but super-fast memory access. A larger cache can improve a CPU's performance.

SpecCore i7-6700KCore i5-9400F
L1 Cache64 KB64 KB
L2 Cache256 KB256 KB
L3 Cache8 MB9 MB

Compatibility & Power Consumption

Compatibility and power consumption information like its socket type, thermal design power, power limits. These can help verify the CPU's compatibility with other PC components.

SpecCore i7-6700KCore i5-9400F
SocketIntel Socket 1151Intel Socket 1151
PCI ExpressPCIe 3.0 x16PCIe 3.0 x16
Thermal Design Power (TDP)91 W65 W
Tcase Max64 °C72 °C

Graphics, Features, & Extensions

Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.

SpecCore i7-6700KCore i5-9400F
Integrated GraphicsHD Graphics 530--
Extensions / TechnologiesMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, ABM, EIST, Intel 64, XD bit, VT-x, VT-d, HTT, EPT, AES-NI, TSX, TXT, MPX, SGX, CLMUL, FMA3, F16C, BMI1, BMI2, SMEP, TBT 2.0MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, EIST, Intel 64, XD bit, VT-x, VT-d, AES-NI, TSX, TXT, CLMUL, FMA3, F16C, BMI1, BMI2, Boost 2.0

Check out these comparisons for similar CPUs:

Looking for alternatives? Check out these similar CPUs:

* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.