AMD Athlon II X4 740 vs AMD Phenom II X2 555

Last updated:

CPU comparison with benchmarks


AMD Athlon II X4 740 CPU1 vs CPU2 AMD Phenom II X2 555
AMD Athlon II X4 740 AMD Phenom II X2 555

CPU comparison

In this CPU comparison, we compare the AMD Athlon II X4 740 and the AMD Phenom II X2 555 and use benchmarks to check which processor is faster.

We compare the AMD Athlon II X4 740 4 core processor released in Q4/2012 with the AMD Phenom II X2 555 which has 2 CPU cores and was introduced in Q2/2010.
AMD Athlon II (52) Family AMD Phenom II (52)
AMD Athlon II X4 (Trinity) (2) CPU group AMD Phenom II - 545 (9)
3 Generation 2
Trinity Architecture Callisto (K10)
Desktop Segment Desktop
AMD Athlon II X4 640 Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Athlon II X4 740 is a 4 core processor with a clock frequency of 3.20 GHz (3.70 GHz). The processor can compute 4 threads at the same time. The AMD Phenom II X2 555 clocks with 3.20 GHz, has 2 CPU cores and can calculate 2 threads in parallel.

AMD Athlon II X4 740 Characteristic AMD Phenom II X2 555
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
3.20 GHz Frequency 3.20 GHz
3.70 GHz Turbo Frequency (1 Core) --
3.70 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 X4 740 Characteristic AMD Phenom II X2 555
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

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 no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

Up to 16 GB of memory in a maximum of 2 memory channels is supported by the AMD Athlon II X4 740, while the AMD Phenom II X2 555 supports a maximum of GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled.

AMD Athlon II X4 740 Characteristic AMD Phenom II X2 555
DDR3-1866 Memory DDR3-1333, DDR2-1066
16 GB Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
29.9 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
4.00 MB L2 Cache --
-- L3 Cache 6.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The AMD Athlon II X4 740 has a TDP of 65 W. The TDP of the AMD Phenom II X2 555 is 80 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Athlon II X4 740 Characteristic AMD Phenom II X2 555
65 W TDP (PL1 / PBP) 80 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD Athlon II X4 740 has 4.00 MB cache and is manufactured in 32 nm. The cache of AMD Phenom II X2 555 is at 6.00 MB. The processor is manufactured in 45 nm.

AMD Athlon II X4 740 Characteristic AMD Phenom II X2 555
32 nm Technology 45 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, 3DNow!, SSE3, SSE4a ISA extensions SSE3, SSE4a
FM2 Socket AM3
AMD-V Virtualization AMD-V
No AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q4/2012 Release date Q2/2010
60 $ Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Athlon II X4 740 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (2 ratings). Rate now:
Here you can rate the AMD Phenom II X2 555 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (4 ratings). Rate now:

Average performance in benchmarks

Single core performance in 2 CPU benchmarks
AMD Athlon II X4 740 (98%)
AMD Phenom II X2 555 (95%)
Multi core performance in 4 CPU benchmarks
AMD Athlon II X4 740 (100%)
AMD Phenom II X2 555 (58%)

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.
AMD Athlon II X4 740 AMD Athlon II X4 740
4C 4T @ 3.70 GHz
461 (100%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
409 (89%)

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.
AMD Athlon II X4 740 AMD Athlon II X4 740
4C 4T @ 3.70 GHz
1391 (100%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
767 (55%)

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 X4 740 AMD Athlon II X4 740
4C 4T @ 3.70 GHz
2705 (100%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
2060 (76%)

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.
AMD Athlon II X4 740 AMD Athlon II X4 740
4C 4T @ 3.20 GHz
651 (100%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
290 (45%)

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 X4 740 AMD Athlon II X4 740
4C 4T @ 3.70 GHz
80 (95%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
84 (100%)

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 X4 740 AMD Athlon II X4 740
4C 4T @ 3.70 GHz
288 (100%)
AMD Phenom II X2 555 AMD Phenom II X2 555
2C 2T @ 3.20 GHz
162 (56%)

Devices using this processor

AMD Athlon II X4 740 AMD Phenom II X2 555
Unknown Unknown

Popular comparisons containing this CPUs

1. AMD Phenom II X2 555AMD Phenom II X4 955 AMD Phenom II X2 555 vs AMD Phenom II X4 955
2. AMD Athlon II X4 740AMD Phenom II X4 840 AMD Athlon II X4 740 vs AMD Phenom II X4 840
3. AMD Athlon II X4 740AMD Phenom II X4 955 AMD Athlon II X4 740 vs AMD Phenom II X4 955
4. AMD Phenom II X2 555AMD Phenom II X6 1055T AMD Phenom II X2 555 vs AMD Phenom II X6 1055T
5. AMD Phenom II X2 555AMD Sempron 2650 AMD Phenom II X2 555 vs AMD Sempron 2650
6. AMD A8-5500AMD Athlon II X4 740 AMD A8-5500 vs AMD Athlon II X4 740
7. AMD Phenom II X2 555AMD FX-6300 AMD Phenom II X2 555 vs AMD FX-6300
8. AMD Phenom II X6 1055TAMD Athlon II X4 740 AMD Phenom II X6 1055T vs AMD Athlon II X4 740
9. AMD Phenom II X2 555Intel Core i5-4570 AMD Phenom II X2 555 vs Intel Core i5-4570
10. AMD Phenom II X2 555Intel Core i3-4130 AMD Phenom II X2 555 vs Intel Core i3-4130


back to index