#MACBOOK 11 INCH HDMI FULL#

At that temperature, the internal fan doesn’t spin above 4000 RPM (usually down below 3400). The CPU in the 11-inch model, even when under heavy loads, likes to stay at or below 72C (162F). The slits are smaller than they were on the old chassis, which means moving air through them at the same rate sounds louder than before. The new MacBook Air chassis hides the ventilation slits between the base of the unit and the hinge. The old MacBook Air chassis had a few dozen slits cut out of the aluminum for ventilation. This is something I'm going to have to devise tests for and pay more attention to in future reviews. What's even more troublesome is that Apple's aggressive clock throttling went relatively undetected until now.

#MACBOOK 11 INCH HDMI FULL#

In practice I found the 2008 13-inch MBA launched applications quicker (short bursts of full clock speed), but after prolonged use or completing CPU intensive tasks it was tough to tell apart from the new 11-inch. We wondered how Apple was able to cram such a high speed CPU into such a thin chassis as early as it did, now we know.

Both of these stress both cores and drive TDP up, which forces Apple to pull clock speed back down. But now look at the heavier tests - the multithreaded Cinebench test and the Quicktime encode. The 26% performance advantage jibes with the 33% increase in CPU clock speed (it's actually a little low, most likely because the old CPU still isn't running at full speed even in this test). The single threaded Cinebench test is the best example of this.

You'll notice the less CPU intensive tasks are quicker on the old 13-inch system as the CPU isn't able to get hot enough to trigger Apple's throttling. 13-inch MacBook Air (2008)Īpple 11-inch MacBook Air (2010) - 1.4GHz Core 2 DuoĪpple 13-inch MacBook Air (2008) - 1.86GHz Core 2 Duo

And our performance results confirm that:ġ1-inch MacBook Air (2010) vs. The 2008 machine is throttling back to reduce overall temperature while the 2010 system keeps going.Īs a result, even the 11-inch MacBook Air will probably end up being as fast, if not faster than the 2nd generation 2008 13-inch MacBook Air. IStat Menus reports the 1.86GHz Core 2 Duo in the 2008 system consuming only 7.59W, while the same CPU in the 2010 machine is drawing 11.45W. But look at what happens to the chips after a minute at that load: Both CPUs hit roughly 84C (183F) under full load. Maximum temperature, at least reported by the MBA’s sensors, isn’t any lower on the new 13-inch than the 2008 I compared it to. The peak thermal specs themselves haven’t changed, but the actual power characteristics have. I’m guessing yield on these parts is as high as can be and as a result, power consumption is probably consistently lower than the original 1.86GHz parts Apple shipped back in 2008. The 45nm process these Core 2s are built on is as mature as it’s going to get. It looks like what we’ve stumbled upon is a combination of Apple aggressively throttling the clock speed of the older MacBook Air CPUs to meet thermal requirements, and the CPUs used in the new MacBook Airs being far better behaved from a voltage/power consumption standpoint. The old MBA is actually slower than the new 11-inch, despite the advantage in CPU speed. Handbrake 0.94 - H.264 High Profile TranscodeĪverage Frames per Second (Higher is Better) I turned to our Handbrake H.264 encode test to verify my sanity: Not only is the 2008 13-inch MBA slower than the new 13-inch model, it’s actually slower than the 11-inch model running at 1.4GHz. Take a look at Cinebench 11 comparing the 2008 13-inch MacBook Air to the two 2010 models:Ĭinebench 11 - Multithreaded CPU Benchmarkġ1-inch MacBook Air (2010) - 1.4GHz Core 2 Duoġ3-inch MacBook Air (2010) - 1.86GHz Core 2 Duoġ3-inch MacBook Air (2008) - 1.86GHz Core 2 Duo If you assumed the same thing I did, you’d be very wrong. While the SSD is faster, if you’re running a CPU bound benchmark there shouldn’t be any performance difference.

Memory sizes and speeds haven’t changed either. The 2010 model gets a faster GPU but the CPU is literally the same 1.86GHz Core 2 Duo. On paper, the new 13-inch MacBook Air shouldn’t be any faster than the old 2008 MacBook Air - at least in CPU bound tasks. The 11-inch MacBook Air: Faster than the old 13-inch MacBook Air

Macbook 11 inch hdmi