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Topic de reduceri la jocuri
by Foxter
[30 May 2019, 16:46] -
See you on the other side
by FATHER
[03 April 2016, 16:44] -
Ghiduri de cumpărare
by Foxter
[29 February 2016, 17:32] -
Windows 10
by SoNic
[15 December 2014, 01:53] -
Hybrid Drives (SSD+HDD)
by SoNic
[14 December 2014, 07:12] -
SSD Drives
by Foxter
[23 November 2014, 16:35] -
iPad
by Foxter
[23 November 2014, 16:17] -
Noutăţi, prezentări, teste laptop
by Foxter
[23 November 2014, 15:48]
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Users: 0Guests: 103Total: 103Today we take a look at the Antec HCP-750. Let's start with the delivery contents. Apart from the PSU itself the package includes a power cable, four screws to mount the device in the PC case, a short user guide, and the modular connectors in a separate bag. The HCP is protected from dust and dirt by a bag during shipping. The product features include 80 Plus Gold Certification, the 16-AWG connection cables (large wire cross-section), the 135mm PWM fan, and the gilded connectors. In addition Antec ofers a 5-year warranty, which is a common feature for a product like this.
The HCP-750 has four +12V outputs, each of which can be loaded with 40A according to the manufacturer. Almost the full power is provided here because of the DC-to-DC VRM. The +5V and +3.3V combined output is 150W. +5VSB can handle 3A (or 15W), and the label shows the various safety certifications. Antec products can be bought all over the world, so there are many country-specific requirements.
Antec uses a DC fan from ADDA with the model number ADN512UB-A9B. This one is controlled via PWM, so the duty cycle will be modulated. As a Sanyo Denki employee reported at Computex 2011, PWM is much better for the fan than voltage control. However, it should be mentioned that Antec has patented the use of PWM fans in PC power supplies, which complicates their use for other manufacturers. The fan needs 0.44A from the +12V output, and the nine fan blades pictured above are pretty well made.
<p><span style="font-size: small;">The low powered AMD Fusion market is still an active one, and although the ASUS E35M1-M Pro has been available for a while, we have been asked to have a look. By definition, it is a low powered board with a 1.6 GHz dual core and a 500 MHz GPU clock with 80 stream processors. We clocked a basic system at around 32 W idle, with the APU cooled passively.</span></p>
<p><span style="font-size: small;"><a target="_blank" href="http://www.anandtech.com/show/4996/asus-e35m1m-pro-review-anyone-for-fusion">Read more...</a><br />
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The new graphics cards from Sapphire prepare to win over their market share due to increased frequencies, unique cooling systems and very rich accessories bundles.
Corsair seems to have completed their case lineup with their latest addition, the Carbide 500R. Though currently made available in black, this enthusiast-geared enclosure was originally advertised in its attractive pearl white coloring, and that's the model we have on hand today. Does this powered up Carbide 400R have what it takes to make it as a compelling alternative to not just its cheaper sibling, but also to Corsair's Graphite 600T and 650D as well as the other enclosures around the $139 price point ?
While the MSRPs of the 500R, 600T, and 650D show stratification (and a visit to NewEgg confirms this), things get a little muddy when you start bargain hunting. While you can get the 500R for $139 ($125 after rebate as of the time of this writing), the cheapest I could find the 600T for was about the same price and usually around $160, hanging out in the same neighborhood as the Obsidian. That clusters these three enclosures against each other and while it's not as goofy as the sub-$100 graphics card market, it does make you wonder a little bit about why Corsair shot so high with the 500R.
That said, there are definitely differences. The Graphite 600T is a fine case but an odd bird in Corsair's lineup with no siblings, while the 650D is essentially the love child of the 600T and Obsidian 700D/800D enclosures. And while the 600T on up are all designed largely with acoustics in mind (and all use negative air pressure designs), the Carbide enclosures are a bit more open, with more fans, more fan mounts, and positive air pressure. Theoretically, acoustics suffer while thermal performance should improve. It's a trade-off end users often have to make in the sub-$200 case market.
The fan controls are going to be familiar to people who've seen the Obsidian 650D, but the internals are all Carbide series, with a tremendous amount of cooling expansion available. End users willing to put in the time to fine tune the cooling are probably going to be well rewarded, but the configuration Corsair ships the 500R with isn't half bad either.
It is not difficult to find all sorts of mini-ITX mainboards, but until recently there weren’t any products among them that could be able to overclock processors. The first mini-ITX mainboard like that, which appeared in retail, was the Intel Z68 Express-based Zotac Z68-ITX WiFi.
This review is dedicated to the newest graphics accelerator that combines all the advantages if a high-end product with a very appealing price for its class.
Let’s take a closer look at the third incarnation of the world’s famous air-cooler from the Japanese Scythe Company.
<p><span style="font-size: small;">This is one of the most ambitious graphics cards in the world. This new product from EVGA offers unique PCB layout, extraordinary cooling system, super-high nominal clock frequencies and a lot of other great things.</span></p>
<p><span style="font-size: small;"><a href="http://www.xbitlabs.com/articles/graphics/display/evga-gf-gtx-580-classified-3gb.html" target="_blank">Read more...</a><br />
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<p><span style="font-size: small;"> How do you keep increasing performance in a power constrained environment like a smartphone without decreasing battery life? You can design more efficient microarchitectures, but at some point you’ll run out of steam there. You can transition to newer, more power efficient process technologies but even then progress is very difficult to come by. In the past you could rely on either one of these options to deliver lower power consumption, but these days you have to rely on both - and even then it’s potentially not enough. Heterogeneous multiprocessing is another option available - put a bunch of high performance cores alongside some low performance but low power cores and switch between them as necessary.</span></p>
<p class="p1"><span style="font-size: small;"> <span class="s1">NVIDIA recently revealed it was doing something similar to this with its upcoming Tegra 3 (Kal-El) SoC. NVIDIA outfitted its next-generation SoC with five CPU cores, although only a maximum of four are visible to the OS. If you’re running light tasks (background checking for email, SMS/MMS, twitter updates while your phone is locked) then a single low power Cortex A9 core services those needs while the higher performance A9s remain power gated. Request more of the OS (e.g. unlock your phone and load a webpage) and the low power A9 goes to sleep and the 4 high performance cores wake up. </span></span></p>
<p class="p1"><span style="font-size: small;"> While NVIDIA’s solution uses identical cores simply built using different transistors (LP vs. G), the premise doesn’t change if you move to physically different cores. For NVIDIA, ARM didn’t really have a suitable low power core thus it settled on a lower power Cortex A9. Today, ARM is expanding the Cortex family to include a low power core that can either be used by itself or as an ISA-compatible companion core in Cortex A15 based SoCs. It’s called the ARM Cortex A7.</span></p>
<p class="p1"><span style="font-size: small;"><a target="_blank" href="http://www.anandtech.com/show/4991/arms-cortex-a7-bringing-cheaper-dualcore-more-power-efficient-highend-devices">Read more...</a><br />
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<p><span style="font-size: small;">The new Kindle Fire may have gotten most of the attention when Amazon refreshed its Kindle lineup this year, but Amazon is still very much in the e-reader market. The fourth-generation Kindle, the Kindle Touch, and the Kindle Touch 3G all promise to deliver the traditional Kindle experience in a lighter and less expensive package - continue reading for our thoughts on the new $79 Kindle.</span></p>
<p><span style="font-size: small;"><a target="_blank" href="http://www.anandtech.com/show/4988/amazon-fourthgeneration-kindle-review">Read more...</a><br />
</span></p>