AMD A6-6400K vs Intel Core i9-11900KB

VS
Performance
A6-6400K
1,9985% of 36,991
Core i9-11900KB791% better
17,80348% of 36,991

The Core i9-11900KB has 791% better performance than the A6-6400K for the 3DMark 11 Performance Physics benchmark.

Performance per dollar
A6-6400K
No data available
Core i9-11900KB
33.0327% of 121.53

The Core i9-11900KB has 27% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: Intel Core i5-13400F.

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Summary

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About the AMD A6-6400K CPU

The AMD A6-6400K is an end-of-life 2-core (2-thread) processor built for the desktop CPU market. It launched in Q2 2013. It is part of AMD's A6 lineup, which is based on the Richland microarchitecture. The A6-6400K is compatible with AMD Socket FM2 motherboards and is fabricated on GlobalFoundries's 32 nm manufacturing process. It features the Radeon HD 8470D integrated graphics solution.

Memory and Cache

The A6-6400K supports DDR3 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the A6-6400K has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 96 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 1 MB, is larger but slower than the L1.

Cores and Clock Speeds

The A6-6400K features 2 total cores which can process 2 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3.9 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 unlocked, enabling overclocking for those seeking to push the CPU's performance further.

Integrated Graphics

The A6-6400K includes an integrated graphics solution called Radeon HD 8470D. 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

The A6-6400K has the 615th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 5.40% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.

About the Intel Core i9-11900KB CPU

The Intel Core i9-11900KB is a 8-core (16-thread) processor built for the desktop CPU market. It launched in Q2 2021 with a suggested retail price of $539. It is part of Intel's Core i9 lineup, which is based on the Tiger Lake-H microarchitecture. The i9-11900KB is compatible with Intel BGA 1787 motherboards and is fabricated on Intel's 10 nm manufacturing process. It features the UHD Graphics 750 integrated graphics solution.

Memory and Cache

The Core i9-11900KB supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i9-11900KB has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 80 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 1.25 MB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 24 MB.

Cores and Clock Speeds

The Core i9-11900KB features 8 total cores which can process 16 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3.3 GHz, and it can boost up to 5.3 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 i9-11900KB includes an integrated graphics solution called UHD Graphics 750. 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 i9-11900KB has the 96th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 48.13% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 17,803 score and $539 launch price (MSRP) gives it a performance per dollar of 33.03. This is the 110th best in value for the 3DMark 11 Perf. Physics benchmark.

General Info

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

InfoA6-6400KCore i9-11900KB
ManufacturerAMDIntel
SeriesA6Core i9
Market SegmentDesktopDesktop
Release DateQ2 2013Q2 2021
Launch Price (MSRP)--$539
Production StatusEnd-of-lifeActive
ShopCheck PriceCheck Price

Benchmark Performance

#
Performance
A6-6400K
1,9985% of 36,991
Core i9-11900KB791% better
17,80348% of 36,991

The Core i9-11900KB has 791% better performance than the A6-6400K for the 3DMark 11 Performance Physics benchmark.

The A6-6400K is ranked 615th with a score of 1,998, and the Core i9-11900KB is ranked 96th with a score of 17,803.

Performance per dollar
A6-6400K
No data available
Core i9-11900KB
33.0327% of 121.53

The Core i9-11900KB has 62% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: AMD Ryzen 9 7950X3D.

Core i9-11900KB's 33.03 performance per dollar ranks it 0th 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:A6-6400K or
CPUBenchmark Performance
Core i7-1170018,083+805%
Ryzen Threadripper 1950X17,834+793%
Core i9-11900KB17,803+791%
Core i7-11700K17,324+767%
Core i9-9900K17,264+764%
A10-7700K3,853+93%
A8-7650K3,745+87%
A6-6400K1,998
A4-53001,924-4%
E2-1800736-63%

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:A6-6400K orCore i9-11900KB
CPUPerformance Per Dollar
Core i7-9700K38.07+15%
Ryzen 9 3900X37.94+15%
Core i9-9900KS36.44+10%
Core i9-9900K35.38+7%
Ryzen 9 390033.67+2%
Core i9-11900KB33.03
Ryzen 9 3950X28.06-15%
Ryzen 7 1800X27.62-16%
Core i9-10980XE19.01-42%
Ryzen Threadripper 1950X17.85-46%

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
BenchmarkA6-6400KCore i9-11900KB
3DMark 11 Performance Physics
1,998
17,803
(+791.04%)
3DMark Time Spy CPU
--
10,035
Cinebench R15 Multi-Core
149
2,027
(+1,260.4%)
Cinebench R15 Single-Core
88
247
(+180.68%)
Geekbench 6.2 Multi-Core
576
--
Geekbench 6.2 Single-Core
410
--
CPU Mark Multi-Thread
1,497
22,890
(+1,429.06%)
CPU Mark Single-Thread
1,449
3,304
(+128.02%)
Benchmarks Source: Notebookcheck

Technical Specs

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Manufacturing Details

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

SpecA6-6400KCore i9-11900KB
ManufacturerAMDIntel
FoundryGlobalFoundriesIntel
Process Size32 nm10 nm
Transistors1,303 million--

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.

SpecA6-6400KCore i9-11900KB
SeriesA6Core i9
MicroarchitectureRichlandTiger Lake-H
CodenameRichlandTiger Lake-H
Memory SupportDDR3DDR4
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.

SpecA6-6400KCore i9-11900KB
Cores28
Threads216
Clock Speed3.9 GHz3.3 GHz
Turbo Clock4.1 GHz5.3 GHz
Base Clock100 MHz100 MHz
Multiplier39.0x33.0x
Multiplier UnlockedYesYes

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.

SpecA6-6400KCore i9-11900KB
L1 Cache96 KB80 KB
L2 Cache1 MB1.25 MB
L3 Cache--24 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.

SpecA6-6400KCore i9-11900KB
SocketAMD Socket FM2Intel BGA 1787
PCI ExpressPCIe 2.0PCIe 4.0 x20
Thermal Design Power (TDP)65 W65 W
Tcase Max70 °C72 °C
TJ Max--100 °C

Graphics, Features, & Extensions

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

SpecA6-6400KCore i9-11900KB
Integrated GraphicsRadeon HD 8470DUHD Graphics 750
Extensions / TechnologiesMMX, 3DNow!, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, BMI1, FMA3, FMA4, AMD64, CLMUL, CnQ, NX bit, AMD-V, XOP, ABM, TBM, F16C, PowerNow!, Turbo Core 3.0MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, AVX-512, EIST, Intel 64, XD bit, VT-x, VT-d, HTT, AES-NI, TSX, TXT, CLMUL, FMA3, F16C, BMI1, BMI2, Boost 3.0, TVB

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