AMD Athlon II X2 370K vs AMD Opteron X3421

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CPU comparison with benchmarks


AMD Athlon II X2 370K CPU1 vs CPU2 AMD Opteron X3421
AMD Athlon II X2 370K AMD Opteron X3421

CPU comparison

AMD Athlon II X2 370K or AMD Opteron X3421 - 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 AMD Athlon II X2 370K has 2 cores with 2 threads and clocks with a maximum frequency of 4.20 GHz. Up to GB of memory is supported in 1 memory channels. The AMD Athlon II X2 370K was released in Q2/2013.

The AMD Opteron X3421 has 4 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Opteron X3421 was released in Q2/2015.
AMD Athlon II (52) Family AMD Opteron (4)
AMD Athlon II X2 (Richland) (1) CPU group AMD Opteron X3000 (3)
4 Generation 0
Richland Architecture Toronto (Excavator)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Athlon II X2 370K has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD Athlon II X2 370K is 4.00 GHz (4.20 GHz) while the AMD Opteron X3421 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Opteron X3421 is at 2.10 GHz (3.40 GHz).
AMD Athlon II X2 370K Characteristic AMD Opteron X3421
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
4.00 GHz Frequency 2.10 GHz
4.20 GHz Turbo Frequency (1 Core) 3.40 GHz
4.20 GHz Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
AMD Athlon II X2 370K Characteristic AMD Opteron X3421
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD Athlon II X2 370K or AMD Opteron X3421 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 R7 - 512 (Toronto)
GPU frequency 0.80 GHz
-- GPU (Turbo) --
-- GPU Generation 0
Technology
Max. displays 3
-- Compute units 8
-- Shader 512
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version 12

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 R7 - 512 (Toronto)
No Codec h265 / HEVC (8 bit) Decode
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG Decode

Memory & PCIe

The AMD Athlon II X2 370K can use up to GB of memory in 1 memory channels. The maximum memory bandwidth is 14.9 GB/s. The AMD Opteron X3421 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s.
AMD Athlon II X2 370K Characteristic AMD Opteron X3421
DDR3-1866 Memory DDR4-2400
Max. Memory
1 (Single Channel) Memory channels 2 (Dual Channel)
14.9 GB/s Max. Bandwidth 38.4 GB/s
No ECC Yes
-- L2 Cache 2.00 MB
1.00 MB L3 Cache --
-- PCIe version 3.0
-- PCIe lanes 8
-- PCIe Bandwidth 7.9 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD Athlon II X2 370K is 65 W, while the AMD Opteron X3421 has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD Athlon II X2 370K Characteristic AMD Opteron X3421
65 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up 35 W
-- TDP down 12 W
-- Tjunction max. --

Technical details

The AMD Athlon II X2 370K is manufactured in 32 nm and has 1.00 MB cache. The AMD Opteron X3421 is manufactured in 28 nm and has a 2.00 MB cache.
AMD Athlon II X2 370K Characteristic AMD Opteron X3421
32 nm Technology 28 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, 3DNow!, SSE3, SSE4a ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2
FM2 Socket FP4
AMD-V Virtualization AMD-V, AMD-Vt
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2013 Release date Q2/2015
45 $ Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Athlon II X2 370K to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the AMD Opteron X3421 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


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.
AMD Athlon II X2 370K AMD Athlon II X2 370K
@ 0.00 GHz
0 (0%)
AMD Opteron X3421 AMD Opteron X3421
AMD Radeon R7 - 512 (Toronto) @ 0.80 GHz
820 (100%)

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.
AMD Athlon II X2 370K AMD Athlon II X2 370K
2C 2T @ 4.20 GHz
1505 (100%)
AMD Opteron X3421 AMD Opteron X3421
4C 4T @ 2.10 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.
AMD Athlon II X2 370K AMD Athlon II X2 370K
2C 2T @ 4.20 GHz
90 (100%)
AMD Opteron X3421 AMD Opteron X3421
4C 4T @ 3.40 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.
AMD Athlon II X2 370K AMD Athlon II X2 370K
2C 2T @ 4.20 GHz
147 (100%)
AMD Opteron X3421 AMD Opteron X3421
4C 4T @ 2.10 GHz
0 (0%)

Devices using this processor
AMD Athlon II X2 370K AMD Opteron X3421
Unknown Unknown

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