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AMD A6-4455M vs AMD A4-4355M

AMD A6-4455M

► remove from comparison AMD A6-4455M

The AMD A6-4455M is a mobile ultra-low-voltage (ULV) 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 2.1 GHz CPU (up to 2.6 GHz w/ Turbo Core) with a Radeon HD 7500G 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 A6-4455M includes only one module with two integer-cores and and 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 A6-4455M performs significantly faster than the E-Series (e.g. E2-1800), but cannot compete with Intels ULV processors. 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 and multitasking.

The integrated DirectX 11-compatible Radeon HD 7500G offers only 256 shader cores of the Trinity chip (7660G: 384) and, thanks to Turbo Core, will operate anywhere between 360 to 497 MHz depending on the current application demand. On average, the performance of the HD 7500G 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 A6-4455M APU is rated at 17 Watt TDP and is therefore comparable to Intels ULV-processors. Consequently, the A6-4455M is best suited for thin-and-light notebooks.

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 A6-4455MAMD A4-4355M
SeriesAMD A-SeriesAMD A-Series
CodenameTrinityTrinity
Series: A-Series Trinity
AMD A10-4600M compare2.3 - 3.2 GHz4 / 4 cores
AMD A10-4657M compare2.3 - 3.2 GHz4 / 4 cores
AMD A10-4655M compare2 - 2.8 GHz4 / 4 cores
AMD A8-4500M compare1.9 - 2.8 GHz4 / 4 cores
AMD A8-4557M compare1.9 - 2.8 GHz4 / 4 cores
AMD A8-4555M compare1.6 - 2.4 GHz4 / 4 cores
AMD A6-4400M compare2.7 - 3.2 GHzcores
AMD A4-4300M compare2.5 - 3 GHzcores
AMD A6-4455M « 2.1 - 2.6 GHzcores
AMD A4-4355M1.9 - 2.4 GHzcores
AMD A10-4600M compare2.3 - 3.2 GHz4 / 4 cores
AMD A10-4657M compare2.3 - 3.2 GHz4 / 4 cores
AMD A10-4655M compare2 - 2.8 GHz4 / 4 cores
AMD A8-4500M compare1.9 - 2.8 GHz4 / 4 cores
AMD A8-4557M compare1.9 - 2.8 GHz4 / 4 cores
AMD A8-4555M compare1.6 - 2.4 GHz4 / 4 cores
AMD A6-4400M compare2.7 - 3.2 GHzcores
AMD A4-4300M compare2.5 - 3 GHzcores
AMD A6-4455M2.1 - 2.6 GHzcores
AMD A4-4355M « 1.9 - 2.4 GHzcores
Clock2100 - 2600 MHz1900 - 2400 MHz
L2 Cache2 MB2 MB
Cores / Threads22
TDP17 Watt17 Watt
Transistors1303 Million1303 Million
Technology32 nm32 nm
Die Size246 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, FMA
iGPUAMD Radeon HD 7500G (327 - 424 MHz)AMD Radeon HD 7400G (327 - 424 MHz)
Architecturex86x86
Announced

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 0.85     avg: 0.9     median: 0.9 (1%)     max: 0.87 Points
0.7 Points (1%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.53     avg: 0.6     median: 0.6 (2%)     max: 0.63 Points
0.5 Points (2%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 1594     avg: 1742     median: 1689 (14%)     max: 1943 Points
1690 Points (14%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 2578     avg: 2594     median: 2601 (3%)     max: 2602 Points
2318 Points (3%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 3578     avg: 3596     median: 3593.5 (3%)     max: 3620 Points
3120 Points (2%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 2172     avg: 2459     median: 2602 (14%)     max: 2603 Points
2108 Points (11%)
wPrime 2.10 - wPrime 2.0 1024m *
min: 1950     avg: 2010     median: 1975 (23%)     max: 2104 s
2128 s (25%)
wPrime 2.10 - wPrime 2.0 32m *
min: 58.9     avg: 62     median: 61.8 (12%)     max: 65.2 s
63.5 s (13%)
WinRAR - WinRAR 4.0
865 Points (5%)
884 Points (5%)
X264 HD Benchmark 4.0 - x264 Pass 2
5.7 fps (2%)
X264 HD Benchmark 4.0 - x264 Pass 1
30.7 fps (7%)
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (0%)
0.1 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
0.1 GB/s (0%)
0.1 GB/s (0%)
TrueCrypt - TrueCrypt AES
0.5 GB/s (0%)
0.5 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 1348     avg: 1359     median: 1358.5 (3%)     max: 1372 Points
1239 Points (3%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 37.11     avg: 39.8     median: 37.3 (8%)     max: 45 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 84.5     avg: 90.7     median: 85.7 (4%)     max: 102 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 2194     avg: 2349     median: 2196 (10%)     max: 2658 s
2448 s (11%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 15.46     avg: 9615     median: 13880 (7%)     max: 14950 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 9.24     avg: 6386     median: 9400 (7%)     max: 9748 MFLOPS
Windows 7 Experience Index - Win7 CPU
min: 4.7     avg: 4.8     median: 4.8 (61%)     max: 4.8 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 2596     avg: 2683     median: 2690.5 (3%)     max: 2756 Points
3DMark 11 - 3DM11 Performance Physics
min: 1127     avg: 1184     median: 1212 (3%)     max: 1214 Points
994 Points (3%)
3DMark - 3DMark Ice Storm Physics
9415 Points (6%)
9328 Points (6%)
3DMark - 3DMark Cloud Gate Physics
738 Points (2%)
718 Points (2%)
3DMark - 3DMark Fire Strike Standard Physics
957 Points (2%)
922 Points (2%)
Geekbench 2 - 32 Bit - Geekbench Stream
3442 Points (28%)
Geekbench 2 - 32 Bit - Geekbench Memory
2618 Points (24%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
3030 Points (6%)
Geekbench 2 - 32 Bit - Geekbench Integer
2374 Points (5%)
Geekbench 2 - 32 Bit - Geekbench Total Score
min: 2697     avg: 2728     median: 2728 (7%)     max: 2759 Points

Average Benchmarks AMD A6-4455M → 100% n=20

Average Benchmarks AMD A4-4355M → 93% n=20

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

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v1.22
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#3 did not recreate cache, as it is less than 5 days old! Created at Wed, 25 Jan 2023 08:57:11 +0100 +0.001s ... 0.001s

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#6 getting avg benchmarks for device 3320 +0.002s ... 0.023s

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#8 getting avg benchmarks for device 3517 +0.001s ... 0.042s

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#11 min, max, avg, median took s +0.109s ... 0.158s

#12 return log +0.02s ... 0.178s

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)