Intel Xeon E5-1660 v3 vs AMD A6-3400M

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CPU comparison with benchmarks


Intel Xeon E5-1660 v3 CPU1 vs CPU2 AMD A6-3400M
Intel Xeon E5-1660 v3 AMD A6-3400M

CPU comparison

Intel Xeon E5-1660 v3 or AMD A6-3400M - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Xeon E5-1660 v3 has 8 cores with 16 threads and clocks with a maximum frequency of 3.50 GHz. Up to 768 GB of memory is supported in 4 memory channels. The Intel Xeon E5-1660 v3 was released in Q3/2014.

The AMD A6-3400M has 4 cores with 4 threads and clocks with a maximum frequency of 2.30 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A6-3400M was released in Q2/2011.
Intel Xeon E5 (71) Family AMD A (112)
Intel Xeon E5 v3 (32) CPU group AMD A6-3000M (9)
5 Generation 1
Haswell E Architecture Llano (K10)
Desktop / Server Segment Mobile
Intel Xeon E5-1660 v2 Predecessor --
Intel Xeon E5-1660 v4 Successor --

CPU Cores and Base Frequency

The Intel Xeon E5-1660 v3 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Xeon E5-1660 v3 is 3.00 GHz (3.50 GHz) while the AMD A6-3400M has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD A6-3400M is at 1.40 GHz (2.30 GHz).

Intel Xeon E5-1660 v3 Characteristic AMD A6-3400M
8 Cores 4
16 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? Yes
3.00 GHz Frequency 1.40 GHz
3.50 GHz Turbo Frequency (1 Core) 2.30 GHz
3.20 GHz Turbo Frequency (All Cores) 2.30 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Xeon E5-1660 v3 Characteristic AMD A6-3400M
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Xeon E5-1660 v3 or AMD A6-3400M has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU AMD Radeon HD 6520G
GPU frequency 0.40 GHz
-- GPU (Turbo) --
-- GPU Generation 3
Technology 32 nm
Max. displays 2
-- Compute units 5
-- Shader 320
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 1 GB
-- DirectX Version 11

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU AMD Radeon HD 6520G
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Xeon E5-1660 v3 can use up to 768 GB of memory in 4 memory channels. The maximum memory bandwidth is 68.2 GB/s. The AMD A6-3400M supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

Intel Xeon E5-1660 v3 Characteristic AMD A6-3400M
DDR4-2133 Memory DDR3-1333
768 GB Max. Memory
4 (Quad Channel) Memory channels 2 (Dual Channel)
68.2 GB/s Max. Bandwidth 21.3 GB/s
Yes ECC No
-- L2 Cache --
20.00 MB L3 Cache 4.00 MB
3.0 PCIe version --
40 PCIe lanes --
39.4 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Xeon E5-1660 v3 is 140 W, while the AMD A6-3400M has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Xeon E5-1660 v3 Characteristic AMD A6-3400M
140 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Xeon E5-1660 v3 is manufactured in 22 nm and has 20.00 MB cache. The AMD A6-3400M is manufactured in 32 nm and has a 4.00 MB cache.

Intel Xeon E5-1660 v3 Characteristic AMD A6-3400M
22 nm Technology 32 nm
Monolithic Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE3, SSE4a
LGA 2011-3 Socket FS1
VT-x, VT-x EPT, VT-d Virtualization AMD-V
Yes AES-NI No
Windows 10, Linux Operating systems
Q3/2014 Release date Q2/2011
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.50 GHz
1088 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
234 (22%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.20 GHz
8622 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
726 (8%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.20 GHz
12608 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
1964 (16%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.50 GHz
1448 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.20 GHz
8769 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
@ 0.00 GHz
0 (0%)
AMD A6-3400M AMD A6-3400M
AMD Radeon HD 6520G @ 0.40 GHz
256 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.00 GHz
4301 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 1.40 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.50 GHz
177 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Xeon E5-1660 v3 Intel Xeon E5-1660 v3
8C 16T @ 3.20 GHz
1360 (100%)
AMD A6-3400M AMD A6-3400M
4C 4T @ 2.30 GHz
0 (0%)

Devices using this processor

Intel Xeon E5-1660 v3 AMD A6-3400M
Unknown Unknown

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