A6-6400K

Details and Benchmarks for AMD A6-6400K

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Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for A6-6400K based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,289 Rank: 1540
Rank Name Score Visual
1536 Core i3-5005U 4,292
+0.1%
1537 Pentium B960 4,291
+0%
1538 A6-5357M 4,291
+0%
1539 Core i7-2635QM 4,289
+0%
1540 A6-6400K 4,289
1541 Xeon E5420 4,289
+0%
1542 Phenom II X4 925 4,288
+-0%
1543 Pentium E6600 4,288
+-0%
1544 Core 2 Duo P9700 4,286
-0.1%
1545 Phenom II X2 555 4,284
-0.1%

View full ranking →

Multicore Score

Multicore performance score for A6-6400K based on multi-threaded benchmark results.

4,237 Rank: 1944
Rank Name Score Visual
1940 E1-2500 4,239
+0%
1941 Atom E3815 4,239
+0%
1942 Athlon LE-1640 4,238
+0%
1943 E2-2000 4,238
+0%
1944 A6-6400K 4,237
1945 Core 2 Duo P7570 4,237
+0%
1946 Core 2 Duo T6500 4,237
+0%
1947 Atom D425 4,237
+0%
1948 Core 2 Duo T6400 4,236
+-0%
1949 Intel Atom x5-Z8350 4,235
+-0%

View full ranking →

Singlecore Score

Single-core performance score for A6-6400K based on single-threaded benchmark results.

4,323 Rank: 1470
Rank Name Score Visual
1466 Core 2 Quad Q9650 4,328
+0.1%
1467 A12-9720P 4,326
+0.1%
1468 Core 2 Duo E8500 4,326
+0.1%
1469 A8-5500B 4,324
+0%
1470 A6-6400K 4,323
1471 Phenom II X6 1045T 4,321
+-0%
1472 Core i7-620M 4,321
+-0%
1473 Pentium 4 3.80GHz 4,320
-0.1%
1474 Pentium G2020T 4,314
-0.2%
1475 Core 2 Quad Q9550 4,313
-0.2%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for A6-6400K based on integer math, floating point math, and prime number computation benchmarks.

4,512 Rank: 1446
Rank Name Score Visual
1442 Core i5-2415M 4,512
+0%
1443 Celeron 3965U 4,512
+0%
1444 Pentium G860 4,512
+0%
1445 Athlon II X3 460 4,512
+0%
1446 A6-6400K 4,512
1447 A4-7210 4,512
+0%
1448 Phenom II X3 B73 4,512
+0%
1449 Phenom II X3 705e 4,512
+0%
1450 Athlon II X3 455 4,511
+-0%
1451 A6-7400K 4,511
+-0%

View full ranking →

Data Processing

Aggregated score for A6-6400K based on data encryption, data compression, and string sorting benchmarks.

4,472 Rank: 1515
Rank Name Score Visual
1511 Pentium 3825U 4,473
+0%
1512 Core i3-2328M 4,472
+0%
1513 Core i3-2310M 4,472
+0%
1514 Pentium G640 4,472
+0%
1515 A6-6400K 4,472
1516 A4-6320 4,472
+0%
1517 Pentium E6800 4,472
+0%
1518 A8-7100 4,472
+0%
1519 A6-3400M 4,472
+0%
1520 Phenom II X2 B57 4,472
+0%

View full ranking →

Physics & Compute

Aggregated score for A6-6400K based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,479 Rank: 1542
Rank Name Score Visual
1538 Pentium 2127U 4,480
+0%
1539 A8-3550MX 4,480
+0%
1540 Celeron 3855U 4,479
+0%
1541 Core i3-2365M 4,479
+0%
1542 A6-6400K 4,479
1543 A4-6320 4,479
+0%
1544 A8-7410 4,479
+0%
1545 Celeron 1000M 4,479
+0%
1546 A8-4555M 4,479
+0%
1547 Phenom II X2 B57 4,479
+0%

View full ranking →

A6-6400K Details

As of March 2026, the AMD A6-6400K remains a relic of the early 2010s, a desktop processor launched in June 2013 as part of AMD's Richland lineup. Designed for mainstream users seeking affordable integrated graphics, the A6-6400K was built on the 32 nm process node, using the Richland architecture and a Socket FM2 interface. While its 65 W TDP was typical for the era, the chip's performance now places it far behind modern processors, with its benchmark results reflecting its age. The A6-6400K features a dual-core design with four threads, a base clock of 1.1 GHz, and a maximum turbo frequency of 2.6 GHz, making it suitable for light office tasks and basic multimedia playback but inadequate for demanding applications.

The processor integrates the Radeon HD 8470D graphics solution, which operates at a base frequency of 200 MHz and can burst up to 1.1 GHz. It supports up to three displays and pairs with DDR3L/LPDDR3 memory, with a dual-channel interface capable of reaching 1866 MT/s. Despite its relatively modest memory bandwidth of 25.6 GB/s, the A6-6400K was designed for cost-effective systems where discrete graphics were unnecessary. It supports a range of technologies including AVX, SSE4.1, and AES-NI, and includes AMD-V virtualization for improved performance in virtualized environments.

In benchmark testing, the A6-6400K scores 4289 in the Overall Score, placing it at #1539 out of 2060 processors. Its single-core performance, measured at 4323, ranks it #1470, while its multicore score of 4237 places it at #1944. While it performs slightly better than some older dual-core Intel processors like the Core 2 Duo T6400, it falls well behind modern low-power CPUs and even several mid-range processors from the past decade. The A6-6400K's strongest attribute is its single-core performance, which still outperforms many older mobile and embedded chips, but its multicore efficiency is notably weaker, limiting its utility in multi-threaded workloads.

The A6-6400K is not a competitive option in today's computing landscape, where even budget processors from the last five years offer superior performance. Its low power consumption and integrated graphics make it suitable only for legacy systems or as a replacement in older machines where basic functionality is sufficient. As a result, the A6-6400K serves as a historical artifact of AMD's efforts to balance performance and affordability in the mid-2010s, but it is no longer viable for mainstream use.
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AMD A6-6400K

Main Specifications

Designer: AMD
Name: A6-6400K
Model Number: N4200
Cores: 4
Threads: 4
Base Frequency: 1100 MHz
Clock Multiplier: 39x (unlocked)
Core Name: Richland
Socket: FCBGA1296
Package: µPGA
Target Segment: Desktop
Max CPUs: 1
TDP: 6 W

Cache Specifications

L1 Cache: 124.928 KiB
L2 Cache: 0.954 MiB

Memory Specifications

Supported Memory Type: DDR3L/LPDDR3 1866 MT/s; LPDDR4 2400 MT/s
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 6
PCIe Configuration: 1x4 + 1x2 or 4x1 or 2x1+1x2 + 1x2

Integrated Graphics

GPU: HD Graphics 505
GPU Designer: Intel
GPU Max Frequency: 1100 MHz

Physical Specifications

Process: 14 nm
Die Area: 246 mm²
Manufacturer: GlobalFoundries
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 FMA3 AES CLMUL F16C x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT SSE4a FMA4 AMD-V TSX Flex Memory FMA 3DNow! TBM XOP PowerNow!
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