Imagination Technologies unveils PowerVR Series6XT GPUs, promises 50% performance gains

Imagination Technologies unveils PowerVR Series6XT GPUs, promises 50% performance gains
Imagination Technologies (IT) has unveiled its newest PowerVR graphics chip architectures and GPUs at CES 2014. Today’s announcement is of the Power VR Series 6XT “Rogue” graphics chips that are available for licensing right away, and build up on the legacy of the Series 6.

Imagination Technologies’s PowerVR Series 6XT comprises of the new GX6240, GX6250 (dual-cluster), GX6450 (4-cluster) and GX6650 (6-cluster) with only the GX6240 being area optimized, and all others - optimized for performance. Imagination Technologies uses “clusters” instead of cores in its graphics chips to refer to the fact that each cluster does not fully replicate all hardware, but only shader ALUs and texture hardware. 

IT also promises an up to 50% gain in performance with the new chips, and better power efficiency coming from finer-tuned power gating. The Series 6XT chips all support DirectX 10, OpenGL ES 3.0, and OpenCL 1.x, so basically the API support is left unchanged.

Overall, the changes IT brings to Series 6XT are incremental rather than being an overhaul of the architecture. While the company does not provide any low-level details, Series 6XT seems likely to feature the same Unified Shading Cluster (USC) fundamental architecture with a 16-wide scalar design capable of chewing through up to 4 FP32 operations per clock.

The big highlight is on efficiency with a new “PowerGearing G6XT” technology that offers even finer power gating so individual processes or even USCs can be shut down without having the GPU go idle. That’s particularly useful in casual light-stress loads. 

Notably, having announced the first three Series 6XT cores, Imagination Technologies also claims it’s reached the best performance in both GFLOPS/mm2 and GFLOPS/mW in the field. The new chips also bring the new “PVR3C” compression technology, an umbrella term for various supported compressions. Particularly interesting is the support for Adaptive Scalable Texture Compression (ASTC) that is announced nearly simultaneously on PowerVR chips and Nvidia’s Tegra K1.

“Imagination, which our research shows is already the volume leader in mobile GPU, is expanding on its Rogue graphics family with the new high performance Series6XT architecture featuring innovative power management and compression technologies,” Jon Peddie Research president summed up.

Imagination Technology, the British company best known for supplying the GPUs for Apple products like the iPhone 5s and iPad Air, has opened licensing for the new chips, but don’t expect to see them just yet. Judging by the 2-year gap between the announcement and device launch, we should expect to see the Series 6XT chips around late 2015.



15. galanoth

Posts: 428; Member since: Nov 26, 2011

Can someone compare this with Tegra K1, Adreno 420, and Mali T-760?

14. Deaconclgi

Posts: 405; Member since: Nov 03, 2012

Dreamcast FTW!!!!!

8. adecvat

Posts: 678; Member since: Nov 15, 2013

"we should expect to see the Series 6XT chips around late 2015." Apple using this in 2013. Forward thinking!

5. Felix_Gatto

Posts: 942; Member since: Jul 03, 2013

Let's see how well this gpu in comparison with adreno 420 & nvidia geforce k1

7. Extradite

Posts: 316; Member since: Dec 30, 2013

Adreno420 has around 140Gigaflops. And that is Qualcomms best GPU. The PVRSGXR6630 has 250Gigaflops. The mighty Tegra KUDA has immense 900Gigaflops

9. Bootutu

Posts: 228; Member since: Jul 11, 2013

ADRENO 330 has 158 gigaflops, and 420 has 140 gigaflops?. where are you getting your info?

12. fireblade

Posts: 717; Member since: Dec 27, 2013

Whatever... it still can't beat the mighty desktop class Tegra K1 GPU, with DirectX 11.1 & OpenGL 4.0 support.

13. fireblade

Posts: 717; Member since: Dec 27, 2013

900 GFlops? Where did you get that number? Some sources say it only has 365 GFlops XB360 - 240 GLFOPS PS3 - 192 GFLOPS K1 - 365 GFLOPS

16. Felix_Gatto

Posts: 942; Member since: Jul 03, 2013

You have an imagination beyond of my imagination.

4. aayupanday

Posts: 582; Member since: Jun 28, 2012

Imagination Technology = Silent Warrior

3. mr.techdude

Posts: 571; Member since: Nov 19, 2012

Yup Qualcomm is dominating but u can see this chip to be one of the best cause I've seen nothing compare to iPad and iPhone in the gaming department thanks to powerVR

2. itsdeepak4u2000

Posts: 3718; Member since: Nov 03, 2012

Good performances gains but why so late? Only Apple gonna be using this, most of the chinese companies uses PowerVR chips even though they are older version, but what they can use it in their flagships. I think Qualcomm is dominating at the moment.

6. Extradite

Posts: 316; Member since: Dec 30, 2013

Quallcom has a long wat to catch up with Pvr. Do you see Apple using Adreno GPU? they don't, cause it's a weak GPU. Quallcomm dominates just like Gorrila glass: typical commerce materials. DragonTrail, PVRSGX, are rare to be used, cause quality vs standard

10. renz4

Posts: 319; Member since: Aug 10, 2013

did qualcomm license their gpu IP to others?

17. vincelongman

Posts: 5840; Member since: Feb 10, 2013

Apple doesn't use Adreno (owned by Qualcomm), because they own Imagination Technologies. Apple using Adreno, would be like an AMD CPU with Nvidia graphics. Also with the GPUs the A7 and S800 are basically equal, maybe slightly in Apple's favor, but now that the 801's 330 is clocked much higher, the 801 probably slightly faster now.

1. dratomic

Posts: 483; Member since: Oct 09, 2013

this company does it. brings it to market and never makes that much confabulations like nvidia does which is yet to deliver its tegra4 devices to the market at a respectable volume

11. renz4

Posts: 319; Member since: Aug 10, 2013

both company were doing two different things. also power vr has been in licensing business long before nvidia got their tegra

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