the problem is that the OS does not know that it should keep a thread on the SAME core instead of swapping it around to any one of the 8-cores.
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"Yes, the memory bus is weak, but the biggest problem is that OS 10.4 (Tiger) does not know how to deal with so many cores. But if your task has to do a lot of interaction with memory, the advantage drops almost to nothing - as we saw with Photoshop CS3 and Aperture. That says that if the task is pure CPU, the 8-core is twice as fast as the 4-core. Its aggregate rate was 1204MB/sec (versus the 4-core's 601MB/s). We did run the "test-compute-speed" with digLloydTools (DLT) on the 8-core. By comparison, a 6-drive hard disk RAID array can easily perform at over 400MB/sec!" That’s a measly 700MB/sec per core on a quad-core machine, and only 350MB/sec per core on an octa-core machine. Memory copy speed is at best 2.9GB/sec on the Mac Pro, in spite of Apple’s highly misleading claims of 21.3 GB/sec (“maximum processor bandwidth of up to 21.3 GB/s”-bandwidth is a bit more than double the memory copy speed). It’s already a limiting factor with the current quad-core 3.0 GHz Mac Pro. He wrote, "Memory bandwidth is inadequate for 8-cores. Our friend, Lloyd Chambers, thinks there's a memory bus bottleneck for the 8-core, which he discussed back in March on his blog.
Multi-Processing (Simultaneous rendering by Final Cut Pro, Motion, iDVD, and Photoshop CS3)ģD Gaming (Quake 4, Doom 3, Unreal Tournament 2004, Halo, World of Warcraft, Prey) using three different graphics cards So if you're shopping around for a new laptop, the MacBook Pro M2 is one to consider.Special Report on After Effects CS3 running on the Mac Pros, G5 Quad, and MacBook Pro. It's slightly heavier than the Asus ZenBook 13 (UX325)’s (2.5 pounds, 11.9 x 8 x 0.5-inches).
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Weighing in at 3 pounds and 0.6 inches thin, the M2 MacBook Pro is a fairly portable 13-inch laptop. It endured 18 hours and 20 minutes of continuous web surfing over Wi-Fi at 150 nits of brightness. The MacBook Pro M2's Laptop Mag Battery Test puts it among today's laptops with the best battery life. It also crushed the Dell XPS 13's score of 5,365 (Intel Core i7-1165G7 CPU). It beat the 4,215 premium laptop and its predecessor, the M1 MacBook Pro which scored 5,882. In Geekbench 5.4 overall performance tests, the M2 MacBook Pro notched a high mark of 8,911. Naturally, the MacBook Pro's mighty M2 chip had it chugging along, lag free. Some were running Tweetdeck, Slack, YouTube, Tidal, Gmail, Google Sheets and Twitch. We tested the M2 MacBook Pro's prowess with the launch of 50 Google Chrome tabs. We rate the M2 MacBook Pro 4.5 out of 5-stars - backed by our hard to get Editor's Choice award. It also has a great webcam and a comfortable keyboard that's a pleasure to use. In our MacBook Pro M2 review, we like its stellar overall and gaming performance, super-fast SSD and great webcam. It supports up to 24GB of unified memory for fluid multitasking and 3x faster transcoding.įor connecting external devices, the MacBook Pro M2 supplies you with two Thunderbolt/USB 4 ports. The base model packs a 13-inch Liquid Retina display, faster 8-core CPU and 10-core GPU. Creators, college students and business pros alike will benefit from the performance of Apple's new pro grade laptop. Boasting Apple's latest M2 processor, the new MacBook Pro is the best laptop for power-users.
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