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AMD A6-4400M vs AMD A8-4557M vs AMD A4-4355M

AMD A6-4400M

► remove from comparison AMD A6-4400M

The AMD A6-4400M is a mobile dual-core processor based on the Trinity architecture. Officially introduced in Q2 2012, it is the direct successor to the Llano A-series of APUs (Accelerated Processing Unit). The processing unit is manufactured in 32nm SOI and integrates a 2.7 GHz CPU (up to 3.2 GHz w/ Turbo Core) with a Radeon HD 7520G GPU alongside a dual-channel memory controller, video de- and encoders and a northbridge.

The CPU cores are based on a reworked Bulldozer architecture, called Piledriver. Although marketed as a dual-core processor, the A6-4400M includes only one module with two integer-cores and one floating-point core. As a result, the CPU is not a true dual-core processor.

When compared to previous Bulldozer cores, AMD has managed to improve upon the IPC (instructions per clock) performance of Trinity cores while allowing for higher clock frequencies. However, when compared to its Llano predecessor, the multithreaded performance of Trinity has only been slightly improved. The enhanced Turbo Core 3.0 feature functions well in speeding up single threaded performance, although it is still not on the same level as Intel’s Turbo Boost equivalent. Regardless, AMD has managed to include other features as well, such as the AVX extension (including FMA) and support for AES encryption.

In terms of raw general performance, the A6-4400M performs similar to the Llano-based A4-3330MX. Single-threaded workloads can especially benefit from the new architecture and the updated Turbo Core functionality. If compared to Intels Pentium-series, the A6-4400M offers less performance in most cases. Nonetheless, CPU performance from the AMD processor should be sufficient for all daily workloads like Office and Internet browsing, but will reach its limits in more demanding applications.

The integrated DirectX 11-compatible Radeon HD 7520G offers only 192 shader cores of the Trinity chip (7660G: 384) and, thanks to Turbo Core, will operate anywhere between 497 to 686 MHz depending on the current application demand. On average, the performance of the HD 7520G GPU should be somewhere between the Llano-based Radeon HD 6620G and the HD Graphics 4000 as found in Intel’s Ivy Bridge.

The power consumption of the A6-4400M APU is rated at 35 Watt TDP and is therefore comparable to dual-core Ivy Bridge processors. Consequently, the A6-4400M is best suited for 14-inch notebooks or larger.

AMD A8-4557M

► remove from comparison AMD A8-4557M

The AMD A8-4557M is a mobile quad-core processor based on the Trinity architecture and the direct successor to the Llano A-series of APUs (Accelerated Processing Unit). The processing unit is manufactured in 32nm SOI and integrates a 1.9 GHz CPU (up to 2.8 GHz w/ Turbo Core) with a relatively fast Radeon HD 7640G GPU alongside a dual-channel memory controller, video decoders and a northbridge. The A8-4557M is the BGA version of the A8-4500M.

The CPU cores are based on a reworked Bulldozer architecture called Piledriver. Although marketed as a quad-core processor, the A8-4557M includes only two modules with four integer-cores and two floating-point cores total. As a result, the CPU is not a true quad-core processor.

When compared to previous Bulldozer cores, AMD has managed to improve upon the IPC (instructions per clock) performance of Trinity cores while allowing for higher clock frequencies. However, when compared to its Llano predecessor, the multithreaded performance of Trinity has only been slightly improved. The enhanced Turbo Core 3.0 feature performs well in speeding up single-threaded applications, although it still underperforms compared to Intel’s Turbo Boost equivalent. Regardless, AMD has managed to include other features as well, such as the AVX extension (including FMA) and support for AES encryption.

In terms of raw general performance, the A8-4557M performs similarly to the Llano-based A8-3500M. Single-threaded workloads can especially benefit from the new architecture and the updated Turbo Core functionality. If compared to Intel's Core-i3 series, the A8-4557M offers less performance in most cases. Nonetheless, CPU performance from the AMD processor should be sufficient for all daily workloads like Office, Internet browsing and even light video editing or gaming.

The integrated DirectX 11-compatible Radeon HD 7640G offers only 256 shader cores of the Trinity chip (7660G: 384) and, thanks to Turbo Core, will operate anywhere between 497 to 686 MHz depending on the current application demand. On average, the performance of the HD 7640G GPU is comparable to a dedicated Radeon HD 7610M and is faster than the HD Graphics 4000 as found on Intel’s Ivy Bridge platform.

The power consumption of the A8-4557M APU is rated at 35 Watt TDP and is therefore comparable to mid-range dual-core Ivy Bridge processors. Consequently, the A8-4557M is best suited for 14-inch notebooks or larger.

AMD A4-4355M

► remove from comparison AMD A4-4355M

The AMD A4-4355M is a mobile ultra-low-voltage (ULV) dual-core processor based on the Trinity architecture. Officially introduced in Q4 2012, it is the direct successor to the Llano A-series of APUs (Accelerated Processing Unit). The processing unit is manufactured in 32nm SOI and integrates a 1.9 GHz CPU (up to 2.4 GHz w/ Turbo Core) with a Radeon HD 7400G GPU alongside a dual-channel memory controller, video de- and encoders and a northbridge.

The CPU cores are based on a reworked Bulldozer architecture, called Piledriver. Although marketed as a dual-core processor, the A4-4355M includes only one module with two integer-cores and a floating-point core. As a result, the CPU is not a true dual-core processor.

When compared to previous Bulldozer cores, AMD has managed to improve upon the IPC (instructions per clock) performance of Trinity cores while allowing for higher clock frequencies. However, when compared to its Llano predecessor, the multithreaded performance of Trinity has only been slightly improved. The enhanced Turbo Core 3.0 feature functions well in speeding up single threaded performance, although it is still not on the same level as Intel’s Turbo Boost equivalent. Regardless, AMD has managed to include other features as well, such as the AVX extension (including FMA) and support for AES encryption.

In terms of raw general performance, the A4-4355M performs significantly faster than the E-Series (e.g. E2-1800) and competes with Intels Celeron and Pentium ULV processors. CPU performance from the AMD processor should be sufficient for all daily workloads like Office and Internet browsing, but will reach its limits in more demanding applications and multitasking.

The APU integrates a DirectX 11-compatible GPU called Radeon HD 7400G.

The power consumption of the A4-4355M APU is rated at 17 Watt TDP and is therefore comparable to Intels ULV-processors. Consequently, the A4-4355M is best suited for thin-and-light notebooks.

ModelAMD A6-4400MAMD A8-4557MAMD A4-4355M
CodenameTrinityTrinityTrinity
SeriesAMD AMD A-SeriesAMD AMD A-SeriesAMD AMD A-Series
Series: AMD A-Series Trinity
AMD A10-4600M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4657M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4655M2 - 2.8 GHz4 / 4 cores
AMD A8-4500M1.9 - 2.8 GHz4 / 4 cores
AMD A8-4557M1.9 - 2.8 GHz4 / 4 cores
AMD A8-4555M1.6 - 2.4 GHz4 / 4 cores
AMD A6-4400M « 2.7 - 3.2 GHzcores
AMD A4-4300M2.5 - 3 GHzcores
AMD A6-4455M2.1 - 2.6 GHzcores
AMD A4-4355M1.9 - 2.4 GHzcores
AMD A10-4600M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4657M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4655M2 - 2.8 GHz4 / 4 cores
AMD A8-4500M1.9 - 2.8 GHz4 / 4 cores
AMD A8-4557M « 1.9 - 2.8 GHz4 / 4 cores
AMD A8-4555M1.6 - 2.4 GHz4 / 4 cores
AMD A6-4400M2.7 - 3.2 GHzcores
AMD A4-4300M2.5 - 3 GHzcores
AMD A6-4455M2.1 - 2.6 GHzcores
AMD A4-4355M1.9 - 2.4 GHzcores
AMD A10-4600M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4657M2.3 - 3.2 GHz4 / 4 cores
AMD A10-4655M2 - 2.8 GHz4 / 4 cores
AMD A8-4500M1.9 - 2.8 GHz4 / 4 cores
AMD A8-4557M1.9 - 2.8 GHz4 / 4 cores
AMD A8-4555M1.6 - 2.4 GHz4 / 4 cores
AMD A6-4400M2.7 - 3.2 GHzcores
AMD A4-4300M2.5 - 3 GHzcores
AMD A6-4455M2.1 - 2.6 GHzcores
AMD A4-4355M « 1.9 - 2.4 GHzcores
Clock2700 - 3200 MHz1900 - 2800 MHz1900 - 2400 MHz
L2 Cache1 MB4 MB2 MB
Cores / Threads24 / 42
TDP35 Watt35 Watt17 Watt
Transistors1303 Million1303 Million1303 Million
Technology32 nm32 nm32 nm
Die Size246 mm2246 mm2246 mm2
FeaturesSSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMASSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMASSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMA
iGPUAMD Radeon HD 7520G (496 - 685 MHz)AMD Radeon HD 7640G (497 - 655 MHz)AMD Radeon HD 7400G (327 - 424 MHz)
Architecturex86x86x86
Announced
SocketBGA

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 0.98     avg: 1.1     median: 1.1 (1%)     max: 1.14 Points
0.7 Points (1%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
0.8 Points (19%)
0.5 Points (12%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 1829     avg: 2225     median: 2292 (14%)     max: 2384 Points
1690 Points (10%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 3096     avg: 3344     median: 3407 (2%)     max: 3413 Points
2318 Points (2%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 4161     avg: 4482     median: 4589 (3%)     max: 4590 Points
3120 Points (2%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 2948     avg: 3063     median: 3069.5 (4%)     max: 3165 Points
2108 Points (3%)
wPrime 2.10 - wPrime 2.0 1024m *
min: 1399     avg: 1528     median: 1520.5 (18%)     max: 1673 s
2128 s (25%)
wPrime 2.10 - wPrime 2.0 32m *
min: 42     avg: 47.1     median: 46.8 (9%)     max: 52.9 s
63.5 s (13%)
WinRAR - WinRAR 4.0
min: 1070     avg: 1353     median: 1353 (2%)     max: 1636 Points
884 Points (1%)
X264 HD Benchmark 4.0 - x264 Pass 2
7.6 fps (3%)
X264 HD Benchmark 4.0 - x264 Pass 1
38.8 fps (9%)
TrueCrypt - TrueCrypt Serpent
min: 0.072     avg: 0.1     median: 0.1 (2%)     max: 0.0778 GB/s
0.1 GB/s (2%)
TrueCrypt - TrueCrypt Twofish
min: 0.128     avg: 0.1     median: 0.1 (2%)     max: 0.135 GB/s
0.1 GB/s (2%)
TrueCrypt - TrueCrypt AES
min: 0.63     avg: 0.7     median: 0.7 (2%)     max: 0.689 GB/s
0.5 GB/s (1%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 1781     avg: 1800     median: 1804 (4%)     max: 1811 Points
1239 Points (3%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 31     avg: 32.7     median: 31.6 (7%)     max: 36.48 s
22 s (5%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 70     avg: 73.3     median: 70.9 (3%)     max: 81.3 s
95 s (4%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 1798     avg: 1848     median: 1806.5 (8%)     max: 1980 s
2448 s (11%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
18210 MIPS (9%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
12380 MFLOPS (9%)
Windows 7 Experience Index - Win7 CPU
min: 5.5     avg: 5.6     median: 5.6 (72%)     max: 5.6 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 3183     avg: 3308     median: 3304 (3%)     max: 3451 Points
3DMark 11 - 3DM11 Performance Physics
min: 1193     avg: 1380     median: 1403 (4%)     max: 1512 Points
994 Points (3%)
3DMark - 3DMark Ice Storm Physics
13531 Points (11%)
9328 Points (8%)
3DMark - 3DMark Cloud Gate Physics
1004 Points (3%)
718 Points (2%)
3DMark - 3DMark Fire Strike Standard Physics
922 Points (2%)

Average Benchmarks AMD A6-4400M → 0% n=0

Average Benchmarks AMD A4-4355M → 0% n=0

- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

v1.28
log 07. 08:50:39

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 3101 +0s ... 0s

#2 checking url part for id 3949 +0s ... 0s

#3 checking url part for id 3517 +0s ... 0s

#4 redirected to Ajax server, took 1733557839s time from redirect:0 +0s ... 0s

#5 did not recreate cache, as it is less than 5 days old! Created at Sat, 07 Dec 2024 05:18:31 +0100 +0s ... 0s

#6 composed specs +0.008s ... 0.008s

#7 did output specs +0s ... 0.008s

#8 getting avg benchmarks for device 3101 +0.001s ... 0.009s

#9 got single benchmarks 3101 +0.008s ... 0.017s

#10 getting avg benchmarks for device 3949 +0.001s ... 0.017s

#11 got single benchmarks 3949 +0s ... 0.017s

#12 getting avg benchmarks for device 3517 +0.001s ... 0.018s

#13 got single benchmarks 3517 +0.003s ... 0.021s

#14 got avg benchmarks for devices +0s ... 0.021s

#15 min, max, avg, median took s +0.019s ... 0.04s

#16 return log +0s ... 0.04s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)