AMD A6-3400M Quad-Core APU

Another Accelerated Processing Unit from AMD is the AMD A6-3400M. The AMD A6-3400M, codenamed Llano is a quad-core processor for entry level laptops. This APU features an integrated Radeon HD 6520G graphics card. The AMD A6-3400M processor core has a base clock speed of 1.4 GHz and is capable of automatically overclock to up to 2.3 GHz, thanks to the TurboCore Technology.

The AMD A6-3400M will overclock depending on thermal aspect and used cores, the chip will sense the temperature if the processor can withstand the thermal condition of the chip and will automatically overclock or speed up when the condition is met. When compared to the AMD A6-3410MX, the AMD A6-3400M gives a lesser base speed and also a lesser TDP rating which is good to prolong the battery usage. The AMD A6-3400M processor supports memory up to DDR3-1333 and LV DDR3-1333.

The AMD A6-3400M Llano APU comes with an integrated DirectX 11 capable graphics card with a maximum of 400 cores. The AMD Radeon HD 6520G integrated GPU in the A6-Series APU typically offers only 320 cores at 400MHz. This integrated GPU has no dedicated memory and also is not able to use the integrated cache. Moreover, the AMD A6-3400M APU also features an integrated UVD3 video processor to completely decrypt most High Definition videos like H.264, VC-1, MPEG4, etc. This incorporated GPU can be employed for 3D graphics acceleration wherein the GPU can achieve the same level of performance as discreet class graphics cards. When this feature is used for other applications other than graphics related one, the collective performance of 320 shaders on the AMD A6-3400M APU will significantly surpasses the performance of 4 CPU cores. The AMD Radeon HD 6520G integrated GPU offers no dedicated graphics memory - shared memory graphics card, and is consequently sluggish than similar Radeon HD 6000M series cards.

This AMD A6-3400M is appropriate for laptops with 14 to 15-inch displays because of the 35 Watt TDP of the APU together with the integrated graphics card and memory controller. The AMD A6-3400M APU is manufactured in a socket FS1-compatible PGA package.

The illustration below shows the processors' performance in terms of PassMark rating. The higher the rating the better the performance.

Below is a list of other processors' rating as compared to AMD A6-3400M APU. Again the higher the rating the better the performance.

List of Processors	PassMark Rating
Intel Atom N435	246
Intel Atom N280	315
AMD C-50	453
Intel atom N550	567
AMD C-60	592
AMD E-300 with AMD Radeon™ HD 6310 Graphics	595
Intel Atom 400M	646
AMD E-350 APU	725
AMD E-450 with AMD Radeon™ HD 6320 Graphics	768
Intel Core i3 380UM	1305
AMD A4-3310MX APU with Radeon™ HD 6480G	1417
AMD E2-3000M APU with Radeon™ HD 6380G	2044
AMD A4-3300M APU with Radeon™ HD 6480G	2196
Intel Core i3 380M	2313
Intel Core i5 460M	2612
Intel Core i3 2310M	2619
Intel Core i5 560M	2671
Intel Core i7 620M	2794
Intel Core i3 2330M	2803
AMD A6-3410MX APU with Radeon™ HD 6520G	3157
AMD A8-3500M APU with Radeon™ HD 6620G	3166
Intel Core i7 720QM	3294
Intel Core i5 2410M	3350
AMD A8-3510MX APU with Radeon™ HD 6620G	3359
AMD A8-3530MX APU with Radeon™ HD 6620G	3431
Intel Core i5 2430M	3484
AMD A6-3400M APU with Radeon™ HD 6520G	3539
Intel Core i7 2630QM	6334
Intel Core i7 2670QM	6804