6 expert reviews - 0 user reviews
We have collected 6 reviews of the AMD A8-3870K. Experts rate AMD A8-3870K 7.6/10. Reviewsor.com helps you find reviews, best prices, user reviews of the AMD A8-3870K and AMD Processors.
A step up from the A8-3850, the AMD A8-3870K APU has a slightly higher clock speed, at 3 GHz compared with 2.9 GHz for the lower-end model. The rest of the tech specs are identical, however, with four cores, no Turbo mode and no alternative to Intel's Hyper-Threading. This slight boost in clock speed does improve performances slightly—by about 3% on average. This processor therefore comes in about equivalent to the now 'old' Core i3 560, and well below the Core i3 2100. The AMD A8-3870K and Intel's Core i3 2100 sell for similar prices, but graphics performances aren't quite as good in the Intel processor since AMD's APU has a graphics chip built-in. Note, however, that the integrated graphics chip doesn't mean that gamers can do away with a dedicated graphics card (not according to our tests, anyway). For more information about AMD's A-Series four-core APUs, see the detailed product overview in our review of the AMD A8-3850.
Not to be outdone by new graphics releases AMD is going back to the APU drawing board with the new AMD A8-3870K processor.While its flagship FX processors are failing to shine it does seem a little on unfair on AMD that at the other end of the market it has a chip which really ought be cleaning up. Its Llano Fusion APUs, which combine a multi-core CPU and a Radeon graphics part on one die, are actually rather good. They may be based on an older processor architecture, but quad core examples like this A8-3870 hold their own against Intel's similarly priced dual core Core i3s in CPU benchmarks. When it comes to 3D tasks like gaming, the on board HD6550D is simply in a different league to Intel's laggardly HD Graphics 3000 cores.How could they get better? We'd like a chunky price drop, but that's not going to happen. Instead, AMD has introduced 'Black Editions' of the chips, recognisable by their 'K' suffix. Just like Intel chips with a K moniker, they come with an unlocked multiplier which makes them more suitable for overclocking. Now, you might think that anyone who wants to overclock a chip will be looking at something a little more high-end than these very basic processors, but the entire raison d'etre for overclocking is to turn something cheap into an unexpected powerhouse.
When AMD initially released their Llano-based A-Series APUs, the company targeted cost-conscious consumers looking for highly-integrated, easy to assemble solutions for an entry-level or mid-range PCs. At the time of launch, the flagship model in the A-Series line-up was the A8-3850, which featured quad CPU cores paired to a DirectX-11 Radeon GPU with 400 active shader units. In our coverage of the A8-3850, we found it to offer decent performance for its price, especially in graphics-related workloads where the APU's relatively powerful integrated GPU was able to stretch its legs. The original A-Series APU line-up didn't feature any enthusiast-targeted products, but AMD quickly reacted to the A-Series' mostly favorable reception with a new flagship, dubbed the A8-3870K Black Edition, which we'll be showing you here today. In its default configuration, the A8-3870K is a slight upgrade from the A8-3850, thanks to a small increase in its default CPU frequency. The \"K” in its part number, however, means the chip is unlocked, which makes for some interesting overclocking.
With AMDs’ Llano and Bulldozer line releasing within 8 months of each other it was only a matter of time before we saw them merge. The main complaint about Llano was the inability to overclock anything. Well now we see 2 unlocked versions come into the market: the A8-3870k and the A6-3670k. With AMDs rich heritage in overclocking and GPUs what kind of performance can we expect out of these? Lets first take a look at the new line desktop Llano APUs. This new line still features Dx11 and AMDs Steady Video feature through the Vision Engine. The A8-3870K features a 6550D with 600Mhz base clock speed which can be Crossfired with a discrete card for even more power. We’ll look into the amount of flexibility the unlocking of this chip gives us. Alright the numbers have been crunched but what does it all mean? When we overclocked the CPU by 10% we saw ~9% benchmarking increase which is pretty impressive in the overclocking world. When we overclocked the GPU by 34% we didn’t see similar results. For a product boasting superior GPU performance the overclocking performence is medicore. However, at the pricepoint of $144 at writing this is the best solution for mid-level gaming.
There's good news and less-good news about AMD's new A8-3870K Accelerated Processing Unit (or APU). The good news is that it surpasses its predecessor, the A8-3850, in every way (if only slightly), and provides overclocking features and performance potential beyond what you may think you can expect from a chip with a $135 (list) price—whether from AMD or Intel. But for all the strides AMD has made since it released the previous APU this past summer, the A8-3870K still can't replace a solid CPU–discrete video card combo for even quasi-serious gamers. But it shows that AMD is taking its Fusion product seriously, and thus hints at more good things to come. Like the A8-3850, the A8-3870K is based on a 32nm production process and contains four CPU cores and a DirectX 11 (DX11)–supporting Radeon HD 6550D GPU with 400 GPU cores (in roughly the middle budget range of AMD's video products, judging by the previous generation's naming scheme). There's 128KB of L1 cache and 1MB of L2 cache available per core, and the APU supports dual-channel DDR3 memory at speeds of up to 1,866MHz.
AMD launched the desktop APU (codenamed Llano) back in June 2011. While the APU, which is virtually a CPU with integrated GPU, features much more powerful integrated graphics (the HD 6550D) than Intel Sandy Bridge's HD 3000 counterpart, it is unfortunately not fast enough compare to the similar priced Phenom II processors. Making the matter worse, that the APU lacks the overclocking potential that is found on the black edition Phenom processors due to the locked multiplier. AMD has heard the enthusiasts demand and released two K series processors, A8-3870K and the A6-3670K, with unlocked multipliers for enthusiast who like to squeeze that extra bit of clockspeed out of their chip. In addition to the unlocked multiplier, the new processors are also running 100MHz faster than the previous A8-3850 and A6-3650, respectively. Since 100MHz does not really yield a huge performance gain, AMD priced the A8-3870K at $144.99 which is just $5 more than the A8-3850. The A6-370K is priced at $10 more than the A6-3650. The new K series processors allow users to overclock the CPU by simply raising the multiplier and keep the bus speed at default 100MHz. However, users can also increase the GPU clockspeed, an option that was not available with the non-K models.