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NVIDIA GeForce GT 640 review roundup: a $99 card that fails to keep Kepler's promise
NVIDIA blew reviewers away with its flagship GTX 680, but building cards for the low-end is a whole different challenge. The GT 640 hits the $99 price point, where it sits right between the AMD Radeon HD 7750 at $109 and the last-gen Radeon 6670 at around $80. As it turns out, these rivals pull off something of a pincer movement, leaving NVIDIA's card little room to retaliate. The GT 640 contains a 28nm Kepler chip, but it's a cutdown version of the silicon with just 384 CUDA cores, a poor memory bandwidth of 28.5GB/s and no GPU Boost feature -- which means the card can't boost its 900MHz to make use of thermal headroom. These limitations have a significant impact on the benchmarks, as you'll see in our little review roundup after the break.
Charlie Miller discusses iOS security and MacBook battery hacking with Tom's Hardware
Charlie Miller is a household name for those interested in Mac and iOS security. He was the first to hack the iPhone back in 2007, is a Pwn2Own veteran, and recently uncovered a battery firmware hack he'll discuss at the upcoming Black Hat 2011 Conference. Miller recently sat down with Tom's Hardware and talked about security, cloud computing, hardware hacks and more. It's a six-page interview, so get a hot cup of coffee, lean back in that lounger and prepare for a nice long read.
Mac mini, Apple TV to use new Ion platform?
Tom's Hardware says that Apple will use NVIDIA's Ion platform in an updated Mac mini, and AppleInsider says it could also be used in an updated Apple TV. NVIDIA's Ion platform is a low-cost, small-form-factor logic board that includes both an NVIDIA graphics processor and Intel CPU (among other things). According to AppleInsider, Ion uses the same 9400M chipset used in the new MacBook and MacBook Pro models. We knew that existing iMac and Mac mini models are already using the 9400M as part of the NVIDIA MCP79 platform. Either way, with the 9400M, full-screen HD decoding is built-in. According to Tom's Hardware, the Ion package slated for use with the Mac mini includes an Intel Atom 330 processor. AppleInsider says that performance gains for a new Mac mini based on this platform could require OpenCL, a technology only available so far in builds of Snow Leopard. Tom's expects the new Mac mini to arrive in March, while AppleInsider, says that it could arrive "this month." Fingers crossed. The Apple TV, on the other hand, with its 1GHz CPU, would see a significant boost with Ion. The margins on the Apple TV are already tight, though, and adding more power could break the bank on Apple's "hobby" project. But what if the next-generation Apple TV and Mac mini were one and the same? It's a floor wax! It's a dessert topping! Stop, you're both right.
Team overclocks Core 2 Quad to 5.1GHz, claims world record -- too bad it's not
So we hate to break it to the good guys at Tom's Hardware, but while we're impressed that they managed to overclock a 2.4GHz Intel Core 2 Quad 6600 to 5.1GHz using a cryogenic cooling system, it's not nearly close to the world record they're claiming -- we've seen P4's at up to 8.18GHz, and just a couple months ago someone jacked a Core 2 Extreme QX9775 on a Skulltrail board to 6GHz. Still, it's always fun to watch people pour liquid nitrogen over a mobo -- video after the break.[Via PC World]
Buyer's Guide: Graphics cards compared
Choosing a new graphics card can involve a difficult and lengthy hunt for comparative benchmarks to work out where to put your cash. Fortunately, Tom's Hardware Guide have put together a handy interactive comparison chart which can help reduce this problem to the simple act of staring at a few graphs. It may be reasonably old, but it's useful, with a few caveats; not all of the cards were tested on identical systems, so some of the results are a little surprising -- clicking on the individual bars of the results reveals the relevant system specs. Also, although it is "updated on a regular basis", several cards are missing from the list. Still, if you're in the market for a new graphics card, this should help simplify your search. [via digg]
