AMD A8-4500M vs AMD A6-4455M

AMD A8-4500M

► remove from comparison AMD A8-4500M

The AMD A8-4500M is a mobile quad-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 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 de- and encoders and a northbridge.

The CPU cores are based on a reworked Bulldozer architecture, called Piledriver. Although marketed as a quad-core processor, the A8-4500M 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 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 A8-4500M performs similar 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 Intels Core-i3-series, the A8-4500M 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 even faster than the HD Graphics 4000 as found in Intel’s Ivy Bridge.

The power consumption of the A8-4500M APU is rated at 35 Watt TDP and is therefore comparable to mid-range dual-core Ivy Bridge processors. Consequently, the A8-4500M is best suited for 14-inch notebooks or larger.

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 A8-4500MAMD A6-4455M
AMD A-SeriesAMD A-Series
TrinityTrinity
Series: A-Series Trinity
AMD A10-4600M compare2.3 - 3.2 GHz4 / 4
AMD A10-4657M compare2.3 - 3.2 GHz4 / 4
AMD A10-4655M compare2 - 2.8 GHz4 / 4
» AMD A8-4500M1.9 - 2.8 GHz4 / 4
AMD A8-4557M compare1.9 - 2.8 GHz4 / 4
AMD A8-4555M compare1.6 - 2.4 GHz4 / 4
AMD A6-4400M compare2.7 - 3.2 GHz2
AMD A4-4300M compare2.5 - 3 GHz2
AMD A6-4455M2.1 - 2.6 GHz2
AMD A4-4355M compare1.9 - 2.4 GHz2
AMD A10-4600M compare2.3 - 3.2 GHz4 / 4
AMD A10-4657M compare2.3 - 3.2 GHz4 / 4
AMD A10-4655M compare2 - 2.8 GHz4 / 4
AMD A8-4500M1.9 - 2.8 GHz4 / 4
AMD A8-4557M compare1.9 - 2.8 GHz4 / 4
AMD A8-4555M compare1.6 - 2.4 GHz4 / 4
AMD A6-4400M compare2.7 - 3.2 GHz2
AMD A4-4300M compare2.5 - 3 GHz2
» AMD A6-4455M2.1 - 2.6 GHz2
AMD A4-4355M compare1.9 - 2.4 GHz2
1900 - 2800 MHz2100 - 2600 MHz
4 MB2 MB
4 / 42
35 17
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 7640G (496 - 685 MHz)AMD Radeon HD 7500G (327 - 424 MHz)
Architecturex86x86

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.68     avg: 1.7     median: 1.7 (3%)     max: 1.76 Points
min: 0.85     avg: 0.9     median: 0.9 (2%)     max: 0.87 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.56     avg: 0.7     median: 0.7 (22%)     max: 0.71 Points
min: 0.53     avg: 0.6     median: 0.6 (20%)     max: 0.63 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 1709     avg: 1804     median: 1820.5 (16%)     max: 1862
min: 1594     avg: 1742     median: 1689 (15%)     max: 1943
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 4536     avg: 4825     median: 4872 (8%)     max: 4950
min: 2578     avg: 2594     median: 2601 (4%)     max: 2602
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 6524     avg: 6770     median: 6795 (6%)     max: 6958 Points
min: 3578     avg: 3596     median: 3593.5 (3%)     max: 3620 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 2355     avg: 2476     median: 2475.5 (19%)     max: 2593 Points
min: 2172     avg: 2459     median: 2602 (20%)     max: 2603 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 1000.59     avg: 1028     median: 1038.6 (12%)     max: 1039.24 s
min: 1950     avg: 2009     median: 1974.7 (23%)     max: 2103.55 s
wPrime 2.10 - wPrime 2.0 32m *
min: 30.607     avg: 31.2     median: 31.5 (6%)     max: 31.636 s
min: 58.9     avg: 62     median: 61.8 (12%)     max: 65.179 s
WinRAR - WinRAR 4.0
1777 (11%)
865 (6%)
X264 HD Benchmark 4.0 - x264 Pass 2
10.8 fps (5%)
5.7 fps (3%)
X264 HD Benchmark 4.0 - x264 Pass 1
58.4 fps (17%)
30.7 fps (9%)
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (5%)
0.1 GB/s (2%)
TrueCrypt - TrueCrypt Twofish
0.2 GB/s (6%)
0.1 GB/s (3%)
TrueCrypt - TrueCrypt AES
1.1 GB/s (4%)
0.5 GB/s (2%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 2282     avg: 2406     median: 2438 (13%)     max: 2451 Points
min: 1348     avg: 1359     median: 1358.5 (8%)     max: 1372 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 34.586     avg: 38.5     median: 40.8 (9%)     max: 41.277 s
min: 37.113     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: 78.188     avg: 87.1     median: 91.9 (4%)     max: 93.803 s
min: 84.537     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: 2034.03     avg: 2306     median: 2395.7 (11%)     max: 2431.28 s
min: 2194.03     avg: 2349     median: 2196.1 (10%)     max: 2658 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 26660     avg: 27698     median: 26700 (13%)     max: 30470 MIPS
min: 15.46     avg: 9615     median: 13880 (7%)     max: 14950 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 18760     avg: 19672     median: 18780 (14%)     max: 23120 MFLOPS
min: 9.24     avg: 6386     median: 9400 (7%)     max: 9748 MFLOPS
Windows 7 Experience Index - Win7 CPU
6.7 Points (86%)
min: 4.7     avg: 4.8     median: 4.8 (61%)     max: 4.8 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 5119     avg: 5399     median: 5348 (6%)     max: 5665 Points
min: 2596     avg: 2683     median: 2690.5 (3%)     max: 2756 Points
3DMark 11 - 3DM11 Performance Physics
min: 1945     avg: 2213     median: 2243 (9%)     max: 2410 Points
min: 1127     avg: 1184     median: 1212 (5%)     max: 1214 Points
3DMark - 3DMark Ice Storm Physics
min: 18472     avg: 19251     median: 19286 (12%)     max: 19813 Points
9415 Points (6%)
3DMark - 3DMark Cloud Gate Physics
min: 1514     avg: 1548     median: 1540 (4%)     max: 1600 Points
738 Points (2%)
3DMark - 3DMark Fire Strike Standard Physics
min: 2129     avg: 2163     median: 2149 (5%)     max: 2242 Points
957 Points (2%)
Geekbench 2 - 32 Bit - Geekbench Stream
min: 4131     avg: 4177     median: 4131 (33%)     max: 4270 Points
3442 Points (28%)
Geekbench 2 - 32 Bit - Geekbench Memory
min: 3032     avg: 3107     median: 3032 (27%)     max: 3257 Points
2618 Points (24%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
min: 5242     avg: 5272     median: 5242 (10%)     max: 5332 Points
3030 Points (6%)
Geekbench 2 - 32 Bit - Geekbench Integer
min: 3925     avg: 3972     median: 3925 (8%)     max: 4065 Points
2374 Points (5%)
Geekbench 2 - 32 Bit - Geekbench Total Score
min: 4227     avg: 4274     median: 4227 (11%)     max: 4367 Points
min: 2697     avg: 2728     median: 2728 (7%)     max: 2759 Points

Average Benchmarks AMD A8-4500M → 100% n=31

Average Benchmarks AMD A6-4455M → 66% n=31

- 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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Redaktion, 2017-09- 8 (Update: 2017-09-11)