AMD A6-4455M vs AMD A4-4300M

AMD A6-4455M

► remove 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 A4-4300M

► remove AMD A4-4300M

The AMD A4-4300M is a mobile dual-core processor based on the Trinity architecture. Officially introduced in 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 2.5 GHz CPU (up to 3.0 GHz w/ Turbo Core) with a Radeon HD 7420G 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 A4-4300M 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 A4-4300M performs similar to the Llano-based A4-3310MX. Single-threaded workloads can especially benefit from the new architecture and the updated Turbo Core functionality. If compared to Intels Pentium-series, the A4-4300M offers less performance in most cases. Nonetheless, CPU performance from the AMD processor is 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 7420G offers probably only 192 shader cores of the Trinity chip (7660G: 384) and, thanks to Turbo Core, will operate anywhere between 470 to 640 MHz depending on the current application demand. On average, the performance of the HD 7420G GPU is somewhere between the Llano-based Radeon HD 6520G and the HD Graphics 4000 as found in Intel’s Ivy Bridge.

The power consumption of the A4-4300M APU is rated at 35 Watt TDP and is therefore comparable to dual-core Ivy Bridge processors. Consequently, the A4-4300M is best suited for 14-inch notebooks or larger.

AMD A6-4455MAMD A4-4300M
AMD A-SeriesAMD A-Series
TrinityTrinity
: A-Series Trinity
AMD A10-4600M (compare)2300 - 3200 MHz4 / 4
AMD A10-4657M (compare)2300 - 3200 MHz4 / 4
AMD A10-4655M (compare)2000 - 2800 MHz4 / 4
AMD A8-4500M (compare)1900 - 2800 MHz4 / 4
AMD A8-4557M (compare)1900 - 2800 MHz4 / 4
AMD A8-4555M (compare)1600 - 2400 MHz4 / 4
AMD A6-4400M (compare)2700 - 3200 MHz2
AMD A4-4300M2500 - 3000 MHz2
» AMD A6-4455M2100 - 2600 MHz2
AMD A4-4355M (compare)1900 - 2400 MHz2
AMD A10-4600M (compare)2300 - 3200 MHz4 / 4
AMD A10-4657M (compare)2300 - 3200 MHz4 / 4
AMD A10-4655M (compare)2000 - 2800 MHz4 / 4
AMD A8-4500M (compare)1900 - 2800 MHz4 / 4
AMD A8-4557M (compare)1900 - 2800 MHz4 / 4
AMD A8-4555M (compare)1600 - 2400 MHz4 / 4
AMD A6-4400M (compare)2700 - 3200 MHz2
» AMD A4-4300M2500 - 3000 MHz2
AMD A6-4455M2100 - 2600 MHz2
AMD A4-4355M (compare)1900 - 2400 MHz2
2100 - 2600 MHz2500 - 3000 MHz
2 MB1 MB
22
17 35
1303 1303
32 32
246 mm2246 mm2
SSE (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 7420G (480 - 655 MHz)

Cinebench R15 - CPU Multi 64Bit
93 Points (2%)
Cinebench R15 - CPU Single 64Bit
60 Points (28%)
Cinebench R11.5 - CPU Multi 64Bit
min: 0.85     avg: 0.9     median: 0.9 (2%)     max: 0.87 Points
min: 1.03     avg: 1     median: 1 (3%)     max: 1.05 Points
Cinebench R11.5 - CPU Single 64Bit
min: 0.53     avg: 0.6     median: 0.6 (25%)     max: 0.63 Points
0.7 Points (28%)
Cinebench R10 - Rendering Single 32Bit
min: 1594     avg: 1742     median: 1689 (17%)     max: 1943 Points
min: 1779     avg: 1997     median: 1996.5 (21%)     max: 2214 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 2578     avg: 2594     median: 2601 (4%)     max: 2602 Points
min: 3140     avg: 3144     median: 3144 (5%)     max: 3148 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 3578     avg: 3596     median: 3593.5 (5%)     max: 3620 Points
min: 2127     avg: 3161     median: 3161 (4%)     max: 4195 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 2172     avg: 2459     median: 2602 (24%)     max: 2603 Points
min: 2283     avg: 2613     median: 2613 (24%)     max: 2943 Points
wPrime 2.0x - 1024m *
min: 1950     avg: 2009     median: 1974.7 (23%)     max: 2103.55 seconds
1619 seconds (19%)
wPrime 2.0x - 32m *
min: 58.9     avg: 62     median: 61.8 (12%)     max: 65.179 seconds
50.4 seconds (10%)
WinRAR - Result
865 KB/s (10%)
1072 KB/s (13%)
X264 HD Benchmark 4.0 - Pass 2
5.7 fps (4%)
7.1 fps (4%)
X264 HD Benchmark 4.0 - Pass 1
30.7 fps (11%)
36 fps (13%)
TrueCrypt - Serpent Mean 100MB
0.1 GB/s (3%)
0.1 GB/s (4%)
TrueCrypt - Twofish Mean 100MB
0.1 GB/s (3%)
0.1 GB/s (4%)
TrueCrypt - AES Mean 100MB
0.5 GB/s (3%)
0.6 GB/s (3%)
3DMark 06 - CPU
min: 1348     avg: 1359     median: 1358.5 (9%)     max: 1372 Points
min: 1671     avg: 1684     median: 1684 (11%)     max: 1697 Points
Super Pi mod 1.5 XS 1M *
min: 37.113     avg: 39.8     median: 37.3 (8%)     max: 45 Seconds
33.9 Seconds (7%)
Super Pi mod 1.5 XS 2M *
min: 84.537     avg: 90.7     median: 85.7 (4%)     max: 102 Seconds
75.6 Seconds (3%)
Super Pi Mod 1.5 XS 32M *
min: 2194.03     avg: 2349     median: 2196.1 (10%)     max: 2658 Seconds
2066 Seconds (9%)
SiSoft Sandra Dhrystone (MIPS)
min: 15.46     avg: 9615     median: 13880 (7%)     max: 14950 MIPS
16680 MIPS (8%)
SiSoft Sandra Whetstone (MFLOPS)
min: 9.24     avg: 6386     median: 9400 (7%)     max: 9748 MFLOPS
11210 MFLOPS (9%)
Windows 7 Experience Index - Processor
min: 4.7     avg: 4.8     median: 4.8 (61%)     max: 4.8 points
5.2 points (67%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 2596     avg: 2683     median: 2690.5 (4%)     max: 2756 Points
3254 Points (5%)
3DMark 11 - Performance Physics 1280x720
min: 1127     avg: 1184     median: 1212 (6%)     max: 1214 points
1355 points (7%)
3DMark - Ice Storm Standard Physics 1280x720
9415 Points (6%)
12469 Points (8%)
3DMark - Cloud Gate Standard Physics 1280x720
738 Points (2%)
996 Points (3%)
3DMark - Fire Strike Physics 1920x1080
957 Points (3%)
1359 Points (5%)
Geekbench 2 - 32 Bit - Stream
3442 Points (28%)
2965 Points (24%)
Geekbench 2 - 32 Bit - Memory
2618 Points (24%)
2978 Points (27%)
Geekbench 2 - 32 Bit - Floating Point
3030 Points (6%)
3696 Points (7%)
Geekbench 2 - 32 Bit - Integer
2374 Points (5%)
2855 Points (6%)
Geekbench 2 - 32 Bit - Total Score
min: 2697     avg: 2728     median: 2728 (7%)     max: 2759 Points
3184 Points (8%)
Geekbench 3 - 32 Bit Multi-Core Score
2115 Points (4%)
Geekbench 3 - 32 Bit Single-Core Score
1512 Points (31%)

Average Benchmarks AMD A6-4455M → 100%

Average Benchmarks AMD A4-4300M → 114%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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