Notebookcheck Logo

AMD A8-4500M

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.

SeriesAMD A-Series

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 « 1.9 - 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 compare2.1 - 2.6 GHzcores
AMD A4-4355M compare1.9 - 2.4 GHzcores
Clock Rate1900 - 2800 MHz
Level 2 Cache4 MB
Number of Cores / Threads4 / 4
Power Consumption (TDP = Thermal Design Power)35 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
GPUAMD Radeon HD 7640G (496 - 685 MHz)
64 Bit64 Bit support
Announcement Date05/15/2012


Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.68     avg: 1.7     median: 1.7 (2%)     max: 1.76 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.56     avg: 0.7     median: 0.7 (18%)     max: 0.71 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 6524     avg: 6770     median: 6795 (5%)     max: 6958 Points
X264 HD Benchmark 4.0 - x264 Pass 2
10.8 fps (4%)
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (4%)
TrueCrypt - TrueCrypt Twofish
0.2 GB/s (4%)
TrueCrypt - TrueCrypt AES
1.1 GB/s (3%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 2282     avg: 2406     median: 2438 (5%)     max: 2451 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 34.59     avg: 38.5     median: 40.8 (9%)     max: 41.28 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 78.2     avg: 87.1     median: 91.9 (4%)     max: 93.8 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 2034     avg: 2306     median: 2396 (11%)     max: 2431 s
3DMark 11 - 3DM11 Performance Physics
min: 1945     avg: 2213     median: 2243 (6%)     max: 2410 Points
Geekbench 2 - 32 Bit - Geekbench Memory
min: 3032     avg: 3107     median: 3032 (27%)     max: 3257 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list: