All Articles Tagged speeds and feeds

In typical Apple fashion, they announced the new third generation iPod touch 32GB and 64GB as being 50% faster than the previous generation (the 8GB is the same old bag as last year), with nary a word on what chipsets made it so.

Well, some digging has been done, and some benches have been marked, and the early word is… zoom zoom.

Macworld’s tests show some impressive gains. Boot went down from 31 to 19 seconds. Launching apps went from 12, 20, and 10 seconds to 7, 15, and 5 for Peggle, HR Battle, and Rolando 2 respectively. Web page rendering for the NYT site was down from 34 to 15 seconds, and the Sunspider JS test went from 34.2 to 15.6 seconds.

So, yeah, about 50%.

TUAW, meanwhile, went to the heart of the matter, and discovered that the new iPod touch shares similar, if slightly incremented internals over this year’s iPhone 3GS. More plainly, same Samsung ARM Cortex A8 processor (S5L8922X, however, as opposed to the iPhone 3GS S5L8920X). No word yet on what may be different, if anything about the PowerVR SGX graphic core, but as we heard already, the 802.11n potential is in the WiFi chip.

The second generation iPod touch was faster than the iPhone 3G, so it’s not hard to imagine lack of cell-radio concerns and slightly new components could push the third generation iPod touch across the finish line before the iPhone 3GS as well.

Macworld is reporting that while the iPhone 3GS chipset does indeed support the new (for North America!) HSPDA download speed of 7.2 Mbps, Apple didn’t see fit to equip it with the matching HSUPA upload speed of 1.4/1.9 Mbps. Indeed, they claim the iPhone 3GS will top out its uploads (sending videos to YouTube, emailing photos, etc.) at a comparatively anemic 384 Kbps.

Perhaps not a big deal in North America where, as noted, the GSM networks are still building out their speed. (Hold your laughter, CDMA, your upload speed is faster but it’s not like you’ve flipped the switch to Rev B yet either — you all have your hidden shames!).

In Europe, however, where HSPA networks are as mature as their coffee is good, well… they’re going to suffer senselessly slower upload speeds.

We’ve asked you in the past how fast your downloads were, now let us know how your uploads are doing, and how much HSUPA — or the lack thereof — matters to you.

tap tap tap points out something that perhaps should have been obvious from the start regarding the iPhone 3GS‘ 256MB of RAM — that doubling the memory, once the OS loads and programs start eating away at it, often leaves more than double the free space.

The older iPhone models have been often considered underpowered when it comes to RAM, so even though the RAM amount is technically doubled, in actual use, you’ll often be working with 4x to 10x the amount of free RAM. And that’s one major aspect that’s contributing to the overall speedier feel of the 3GS.

As we saw in our video iPhone 3GS vs. iPhone 3G app launch smackdown, this translates directly into keeping Mobile Safari pages loaded, for example, when you exit out, load a large app, and then come back.

Firemint has put up the above video tech demo of their Real Racing game running optimized for an iPhone 3GS and…. wow.

“Since the game uses a high fidelity physics engine, adding cars is a good test for pushing the hardware. We started our tech demo with 8 cars on the track, then 10, 12, 16 and 20, and the 3GS still didn’t break a sweat,” wrote Firemint’s Alexandra Peters. “We finally stopped when we got to 40 cars on the track at the same time, still with no perceptible drop in frame rate. We think the results are mind blowing.”

No plans to release an iPhone 3GS version yet but again, that’s a switch that some developer will no doubt throw at some point.

[Via Macworld via Firemint]

We’ve been talking about the zippiness of the iPhone 3GS — S as in Speed — since it launched, and report after report has confirmed that not only is it fast, it’s faster than we initially thought.

Here’s more of the same. Running OpenGL 1.x like the iPhone 3G (never mind that it can run OpenGL 2.0 which the iPhone 3G can’t), the results are most impressive:

• The CPU performance is Faster by 40-70%
• The fillrate* is 3x to 4x higher
• Texture effects and filters are about 10x faster

These are probably better indicators for now, since game developers likely won’t abandon the 40 million previous generation users (and their money) any time soon. Does make you wonder when it will happen, though, and what the games — and other apps — will eventually look like.

[via Gizmodo via glbenchmark via Extremetech viaUbergizmo -- phew!]

MacRumors is reporting that Apple’s new iPhone 3GS, while indeed using Imagination Technologies’ PowerVR graphics core, may just have a little more under the hood than previously thought:

iPhone developers, however, have discovered that the iPhone 3GS has extension files named “IMGSGX535GLDriver” suggesting that the new iPhone uses the more powerful graphics processor intended for “high end” mobile devices. This may not be entirely conclusive evidence by itself but it is consistent with a report from a Anandtech commenter who claims to have heard directly from Apple engineers at WWDC that the iPhone 3GS does indeed use the SGX 535.

Zoom. Zoom.

In a related story, Apple has apparently raised their stakes in Imagination Technologies to 9.5% on the heels of Intel’s 16%.

Anandtech gives their usual in-depth look at the processors inside Apple’s new iPhone 3G S. First the CPU, the new ARM Cortex A8 and the short of it is — if the iPhone 2G and 3G were old 486 PCs, the iPhone 3G S would be a Pentium:

As for the GPU, the PowerVR SGX — even if it’s clocked down to half-speed, it’s rendering geometry 3.5x faster with a fill rate 25% higher as well:

Their take away? Well, they say the iPhone 3G S packs a similar hardware punch to the new Palm Pre, but while webOS uses some of that power for 3rd party multitasking, Apple’s “highly optimized software stack” will bring the speed.

And that only scratches the surface. For the gritty details, check out the full article.

[Thanks to Damon for the tip!]

T-Mobile Netherlands (via Wired) has let slip the formerly elusive specs for the iPhone 3G S:

• 256MB of RAM
• 600Mhz CPU

Anandtech (via Macrumors) gives further info:

Although unannounced, the iPhone 3GS uses (again) a Samsung SoC but this time instead of the ARM11 + MBX-Lite combo it’s got a Cortex A8 and PowerVR SGX; just like the [Palm] Pre.

So add that to the fast PowerVR SGX graphics core, and — to quote Steve Jobs — it’s a screamer!

Update: Apple Insider has a great run down of the technology inside the chipsets.

Apple Insider reveals that:

Sources have now reported that Apple has detailed that Imagination’s PowerVR SGX is indeed the graphics processor used in the iPhone 3G S, and that it is “designed for OpenGL ES 2.0.” The new 2.0 specification of OpenGL for Embedded Systems eliminates most of the fixed-function rendering pipeline for a programmable approach to 3D rendering using shader programs.

So while we’re not yet getting that PA Semi + multicore ARM/PowerVT + OpenCL + Papermaker + ATI gurus system on a chip we’ve been fantasizing about this year… we’re still getting a clear focus on speed from Apple. And that’s a Good Thing.

Oh, and yeah, that’s totally the Kingdom Come Flash trouncing his golden age and silver age counterparts in the graphic above. /geek.

MacRumors has come across an Apple job listing for someone with:

excellent understanding and knowledge of processor architecture, specifically ARM and its vector unit NEON. Additional Intel SSE or PowerPC AltiVec is also very helpful. Being able to use processor micro-architecture to write and deliver fast routines is an essential attribute.

Neon, they remind us, is the brand name for the ARMv7 Cortex, the next-generation of the processor Apple uses in the current iPhone and iPod touch.

What’s not yet clear is whether Apple will tap the multi-core potential of the ARMv7 Cortex to really shift multimedia performance into the mobile stratosphere. However, another tantalizing glimpse into the iPhone’s potential future is revealed in a second job listing, this one for an engineer with:

Experience developing embedded image and video processing solutions. Experience developing embedded image and video analysis solutions. Experience working on real-time media and networking applications (WiFi and cellular networks).

Of course, we won’t keep our fingers crossed too hard for those iTunes Replay, personalized podcast streaming, or remote DVR access patents Apple has teases us with in the past…