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AMD A4-4355M

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.

SeriesAMD A-Series
CodenameTrinity
Clock Rate1900 - 2400 MHz
Level 2 Cache2048 KB
Number of Cores / Threads2
Max. Power Consumption (TDP = Thermal Design Power)17 Watt
Transistor Count1303 Million
Manufacturing Technology32 nm
Die Size246 mm2
FeaturesSSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMA
64 Bit64 Bit support
Hardware VirtualizationAMD-V
Announcement Date10/01/2012

Benchmarks

3DMark (2013) - Fire Strike Standard Physics 1920x1080
0% 100%
min: 922      avg: 922 (6%)     median: 922 (6%)     max: 922 Points
3DMark (2013) - Cloud Gate Standard Physics 1280x720
0% 100%
min: 718      avg: 718 (2%)     median: 718 (2%)     max: 718 Points
3DMark (2013) - Ice Storm Standard Physics 1280x720
0% 100%
min: 9328      avg: 9328 (6%)     median: 9328 (6%)     max: 9328 Points
TrueCrypt - Serpent Mean 100MB
0% 100%
min: 0.052      avg: 0.1 (3%)     median: 0.1 (3%)     max: 0.052 GB/s
TrueCrypt - AES Mean 100MB
0% 100%
min: 0.456      avg: 0.5 (5%)     median: 0.5 (5%)     max: 0.456 GB/s
wPrime 2.0x - 1024m
0% 100%
min: 2128      avg: 2128 (25%)     median: 2128 (25%)     max: 2128 seconds
3DMark 06 - CPU -
0% 100%
min: 1239      avg: 1239 (14%)     median: 1239 (14%)     max: 1239 Points
Cinebench R11.5 - CPU Single 64Bit
0% 100%
min: 0.52      avg: 0.5 (26%)     median: 0.5 (26%)     max: 0.52 Points
Cinebench R10 - Rendering Single CPUs 64Bit
0% 100%
min: 2108      avg: 2108 (25%)     median: 2108 (25%)     max: 2108 Points
Cinebench R10 - Rendering Single 32Bit
0% 100%
min: 1690      avg: 1690 (25%)     median: 1690 (25%)     max: 1690 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
0% 100%
min: 2318      avg: 2318 (7%)     median: 2318 (7%)     max: 2318 Points
Super Pi mod 1.5 XS 1M -
0% 100%
min: 22      avg: 22 (5%)     median: 22 (5%)     max: 22 Seconds
Super Pi Mod 1.5 XS 32M -
0% 100%
min: 2448      avg: 2448 (0%)     median: 2448 (0%)     max: 2448 Seconds
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

#0 Did not recreate cache, as it is less than 5 days old +0.016s ... 0.016s

#1 min, max, avg, median took 0.0002129077911377s +1.205s ... 1.22s

#2 return log +0s ... 1.221s

Reviews for the AMD A-Series A4-4355M processor

HP Pavilion Sleekbook TouchSmart 15-b151ef (AMD Radeon HD 7400G, 15.6")
» HP Pavilion Sleekbook TouchSmart 15-b151ef - External Review

HP Pavilion Sleekbook TouchSmart 15-b153sg (AMD Radeon HD 7400G, 15.6")
» Review HP Pavilion Sleekbook TouchSmart 15-b153sg Notebook - Review
» HP Pavilion Sleekbook TouchSmart 15-b153sg - External Review

HP Pavilion Touchsmart 15-b129ea (AMD Radeon HD 7400G, 15.6")
» HP Pavilion Touchsmart 15-b129ea - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series AMD A-Series

» AMD A-Series A10-5750M
   2.5 GHz / 4 MB
» AMD A-Series A10-5757M
   2.5 GHz / 4 MB
» AMD A-Series A10-4600M
   2.3 GHz / 4 MB
» AMD A-Series A10-4657M
   2.3 GHz / 4 MB
» AMD A-Series A10-5745M
   2.1 GHz / 4 MB
» AMD A-Series A8-5550M
   2.1 GHz / 4 MB
» AMD A-Series A8-5557M
   2.1 GHz / 4 MB
» AMD A-Series A8-3550MX
   2 GHz / 4 MB
» AMD A-Series A8-6410
   2 GHz / 2 MB
» AMD A-Series A6-6310
   1.8 GHz / 2 MB
» AMD A-Series A8-3530MX
   1.9 GHz / 4 MB
» AMD A-Series A8-3510MX
   1.8 GHz / 4 MB
» AMD A-Series A6-3430MX
   1.7 GHz / 4 MB
» AMD A-Series A8-3520M
   1.6 GHz / 4 MB
» AMD A-Series A10-4655M
   2 GHz / 4 MB
» AMD A-Series A8-4500M
   1.9 GHz / 4 MB
» AMD A-Series A8-4557M
   1.9 GHz / 4 MB
» AMD A-Series A6-3410MX
   1.6 GHz / 4 MB
» AMD A-Series A8-3500M
   1.5 GHz / 4 MB
» AMD A-Series A6-3420M
   1.5 GHz / 4 MB
» AMD A-Series A8-5545M
   1.7 GHz / 4 MB
» AMD A-Series A6-3400M
   1.4 GHz / 4 MB
» AMD A-Series A8-4555M
   1.6 GHz / 4 MB
» AMD A-Series A6-5350M
   2.9 GHz / 1 MB
» AMD A-Series A6-5357M
   2.9 GHz / 1 MB
» AMD A-Series A6-5200
   2 GHz / 2 MB
» AMD A-Series A4-3330MX
   2.2 GHz / 2 MB
» AMD A-Series A4-5150M
   2.7 GHz / 1 MB
» AMD A-Series A6-4400M
   2.7 GHz / 1 MB
» AMD A-Series A4-4300M
   2.5 GHz / 1 MB
» AMD A-Series A4-6210
   1.8 GHz / 2 MB
» AMD A-Series A4-5100
   1.55 GHz / 2 MB
» AMD A-Series A4-5050
   1.55 GHz / 2 MB
» AMD A-Series A4-5000
   1.5 GHz / 2 MB
» AMD A-Series A10 Micro-6700T
   1.2 GHz / 2 MB
» AMD A-Series A4-3310MX
   2.1 GHz / 2 MB
» AMD A-Series A4-3320M
   2 GHz / 2 MB
» AMD A-Series E2-3800
   1.3 GHz / 2 MB
» AMD A-Series A4-3300M
   1.9 GHz / 2 MB
» AMD A-Series A4-3305M
   1.9 GHz / 1 MB
» AMD A-Series A6-5345M
   2.2 GHz / 1 MB
» AMD A-Series A6-1450
   1 GHz / 2 MB
» AMD A-Series A4 Micro-6400T
   1 GHz / 2 MB
» AMD A-Series A6-4455M
   2.1 GHz / 2 MB
» AMD A-Series A4-5145M
   2 GHz / 1 MB
» AMD A-Series A4-4355M
   1.9 GHz / 2 MB
» AMD A-Series A4-1350
   1 GHz / 2 MB
» AMD A-Series A4-1250
   1 GHz / 1 MB
» AMD A-Series A4-1200
   1 GHz / 1 MB

Surrounding CPUs

- Intel Core 2 Duo T5500
   1.66 GHz / 2 MB
- Intel Core i5 430UM
   1.2 GHz / 0.5 MB + 3 MB
- Qualcomm Snapdragon 801 MSM8974AC
   2.45 GHz / 2 MB
- AMD A-Series A6-4455M
   2.1 GHz / 2 MB
- AMD A-Series A4-5145M
   2 GHz / 1 MB
» AMD A-Series A4-4355M
   1.9 GHz / 2 MB
+ Samsung Exynos 5430 Octa
   1.8 GHz / 512 + 2048 KB
+ Mediatek MT6595
   2.2 GHz / 2048 KB
+ Intel Celeron N2830
   2.16 GHz / 1024 KB
+ Qualcomm Snapdragon 801 APQ8074AB
   2.36 GHz / 2048 KB
+ Qualcomm Snapdragon 801 MSM8974AB
   2.36 GHz / 2048 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > AMD A-Series A4-4355M Notebook Processor
Author: Klaus Hinum (Update: 2012-09-18)