Snapdragon 600 - GPU Performance

On the GPU side of Snapdragon 600 we're still looking at Adreno 320, which is easily Qualcomm's first highly competitive GPU. At its launch, Qualcomm claimed the Adreno 320 clocks in Snapdragon 600 could be higher than what we saw in S4 Pro/APQ8064. To find out, we turned to our trusty GLBenchmark suite.

The good news is that none of the thermal throttling we saw on the APQ8064 based Nexus 4 was present on the HTC One. Curiously enough, the thermald.conf file is now stored as a binary file - which means we can't get direct access to it. Either way, although the One can get warm during heavy CPU/GPU workloads, it doesn't throttle while running GLBenchmark which meant our freezer can remain on food cooling duties for this review.

GLBenchmark 2.5 - Fill Test

Here we see a small increase in fill rate compared to the Nexus 4, roughly 14%.

GLBenchmark 2.5 - Fill Test (Offscreen 1080p)

The beauty of being on a 1080p display is that GLBench's on and offscreen tests produce roughly similar results as they are both run at 1080p. The offscreen results do have vsync disabled though.

GLBenchmark 2.5 - Triangle Texture Test

Very similar triangle throughput to the Nexus 4, and a bit lower than the Nexus 4 freezer test, which implies that Qualcomm is doing a better job of keeping GPU clocks under control in Snapdragon 600.

GLBenchmark 2.5 - Triangle Texture Test (Offscreen 1080p)

GLBenchmark 2.5 - Triangle Texture Test - Fragment Lit

GLBenchmark 2.5 - Triangle Texture Test - Fragment Lit (Offscreen 1080p)

GLBenchmark 2.5 - Triangle Texture Test - Vertex Lit

GLBenchmark 2.5 - Triangle Texture Test - Vertex Lit (Offscreen 1080p)

GLBenchmark 2.5 - Egypt HD

The "game" benchmarks in GLBench give us a good indication of overall performance. The offscreen results are most interesting from drawing comparative conclusions:

GLBenchmark 2.5 - Egypt HD (Offscreen 1080p)

The One is fast - it's now the fastest smartphone we've ever tested in the Egypt HD offscreen test. The margin over the Nexus 4 however makes me believe that we're talking about very small increases in GPU frequency at best (either that or better thermal management).

GLBenchmark 2.5 - Egypt Classic

GLBenchmark 2.5 - Egypt Classic (Offscreen 1080p)

The Egypt Classic results are equally impressive. Here we're seeing about a 12% increase in performance compared to the APQ8064 based Optimus G, so at best we may be talking about a 15% increase in frequencies - or again, just better thermal management (or a combination of the two). Given the fact that process node hasn't changed at all, I think a small clock speed boost wouldn't be unreasonable to expect from the 600's Adreno 320. It's very clear that thermal management has improved though.

Snapdragon 600 - CPU Performance Sense 5, HTC Sense TV, USB-OTG


View All Comments

  • Pazz - Tuesday, April 23, 2013 - link

    I picked up a HTC One at the weekend over here in the UK. The build quality was terrible, the top front aluminium section was too wide for the housing and left a lip on one side. There was also a gap between the middle plastic housing and the aluminium on the top face, so big I could fit a finger nail almost down it. This gap flexed and closed up with pressure. Was this sample provides to Anandtech by HTC? Reply
  • Thud2 - Tuesday, April 23, 2013 - link

    Mine has no gap and I looked at at least 6 of them at AT&T and Sprint stores and never saw a gap. An overhang yes but mine is smooth as silk. Reply
  • Bhairav Pardiwala - Monday, May 06, 2013 - link

    Apparently the microsphone test would have to be redone as the HTC one microphone will now be using a diffrent part Reply
  • KarlSmith432 - Monday, May 06, 2013 - link

    The one-piece aluminum case is amazing but the other specs are also unique, like: the fastest OS and the built-in amplifiers. I saw a list of them @ but I would like to read a review on these specs Reply
  • m0nz - Tuesday, May 07, 2013 - link

    As always, an amazing review from Anandtech. That is why I try to find a review from you guys before anyone else. It's just sad to see such crap around the net, but such a breath of fresh air from here. Good job. Reply
  • ELPCU - Wednesday, May 08, 2013 - link

    It is quite surprising anandtech says its finish is excellent.

    I just bought HTC One yesterday, and I found it frontal aluminum(top and bottom portion of front) aligned improperly.

    This issue seems pretty pandemic.

    Yes, all product might have few defective products, but disappointing part is I can see same issue at Anandtech's photoshot as well, and anandtech said its finish is excellent, so not even have to read about it.

    Closely look (zoom if you do not see)
    at photoshot of bottom side of phone and top side of phone.
    Seam between frontal aluminum and plastic portion is bigger compared to that of back aluminum and plastic portion.
  • Montago - Tuesday, May 14, 2013 - link

    First world problems much ?

    its not by Apple standards, that's for sure...

    it rings, it plays games, aren't you happy ?
  • Montago - Tuesday, May 14, 2013 - link

    BTW... the biggest problem with the HTC One is not the build quality of the phone... but the software... Android still needs a lot of work :-(

    it's insane that the OS can't handle power usage and CPU/GPU usage better...
  • Montago - Tuesday, May 14, 2013 - link

    I just got my HTC One yesterday... i used it all day and installed a lot of apps and configured what antennas to be turned ON...

    I charged the phone 100% and put it on power-saver ... but overnight i lost 30% battery !

    jebus !
  • Gorgenapper - Tuesday, May 14, 2013 - link

    Step 1: Buy a metal phone because it looks and feels premium
    Step 2: Cover the phone in a matte black plastic case

    This is why the materials used to make a phone are largely irrelevant to me. I always put a case on my phone for extra protection in case of a drop.

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