Subject: General Tech | January 7, 2013 - 03:01 AM | Tim Verry
Tagged: tegra 4, SoC, nvidia, cortex a15, ces 2013, CES, arm
Details about NVIDIA’s latest system on a chip (SoC) for mobile devices leaked last month. On Sunday, NVIDIA officially released its Tegra 4 chip, and talked up more details on the new silicon.
Interestingly, the leaked information from the slide held true over the weekend when NVIDIA officially unveiled it during a press conference. The new chip is manufactured on a 28nm, low power, high-k metal gate process. It features four ARM Cortex-A15 CPU cores running at up to 1.9GHz, one (additional) low power Cortex-A15 companion core, a NVIDIA GeForce GPU with 72 cores (not unified shader design unfortunately). In addition, the Tegra 4 SoC includes the company’s i500 programmable soft modem, and a number of fixed function hardware used for audio and image processing.
According to Anandtech, the majority of GPU cores in the Tegra 4 are 20-bit pixel shaders though exact specifications on the GPU are still unknown. Further, the i500 modem currectly supports LTE UE Category 3 on the WCDMA band with an LTE 4 modem expected in the future.
Image Credit: ArsTechnica attended the NVIDIA press conference.
Tegra 4 will support dual channel LP-DDR3 memory, USB 3.0, and a technology that NVIDIA is calling its Computational Photography Architecture that allegedly will allow real-time HDR imagery with still and video shoots.
According to NVIDIA, Tegra 4 will be noticeably faster than its predecessors and the competing SoCs from Apple and Qualcomm et al. When compared to the Nexus 10 (Samsung Exynos 5 SoC) and the stock Android web browser, the Tegra 4 device (Chrome browser) opened pages in 27 seconds versus the Nexus 10’s 50 second benchmark time. Users will have to wait for retail devices with Tegra 4 hardware for independent benchmarks, however. Thanks to the higher top-end clockspeed and beefier GPU, you can expect Tegra 4 to be faster than Tegra 3, but until reviewers get their hands on Tegra 4-powered devices it is difficult to say just how much faster it is.
Speaking of hardware, the Tegra 4 chip will most likely be used in tablets (and not smartphones). Here’s hoping we see some prototype Tegra 4 devices or product announcements later this week at CES.
PC Perspective's CES 2013 coverage is sponsored by AMD.
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Subject: General Tech | December 20, 2012 - 03:16 PM | Ken Addison
Tagged: video, virtu, VIA, tegra 4, Samsung, radeon, podcast, nvidia, nvelo, nuc, lucid, Intel, hackintosh, gigabyte, Dataplex, arm, amd, 8000m
PC Perspective Podcast #231 - 12/20/2012
Join us this week as we talk about the Intel NUC, AMD 8000M GPUs, Building a Hackintosh and more!
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Hosts: Ryan Shrout, Josh Walrath, Allyn Malventano and Chris Barbere
Program length: 1:13:41
Podcast topics of discussion:
- 0:01:50 We are going to try Planetside 2 after the podcast!
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News items of interest:
- 0:33:30 Cutting the Cord Complete!
- 0:36:10 VIA ARM-based SoCs in upcoming ASUS tablet
- 0:42:00 Lucid MVP 2.0 will be sold direct
- 0:44:50 Samsung acquires NVELO SSD Caching Software
- 0:49:00 AMD announces mobility 8000M series of GPUs
- 0:54:15 Some NVIDIA Tegra 4 Details
- 0:58:55 NEC Unveils Super Thin Ultrabook
- 1:00:30 Win a Sapphire HD 7870 GHz Edition FleX!!
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Subject: Processors, Mobile | December 19, 2012 - 03:26 AM | Tim Verry
Tagged: wayne, tegra 4, SoC, nvidia, cortex a15, arm
Earlier this year, NVIDIA showed off a roadmap for its Tegra line of mobile system on a chip (SoC) processors. Namely, the next generation Tegra 4 mobile chip is codenamed Wayne and will be the successor to the Tegra 3.
Tegra 4 will use a 28nm manufacturing process and feature improvements to the CPU, GPU, and IO components. Thanks to a leaked slide that appeared on Chip Hell, we now have more details on Tegra 4.
The 28nm Tegra 4 SoC will keep the same 4+1 CPU design* as the Tegra 3, but it will use ARM Cortex A15 CPU cores instead of the Cortex A9 cores used in the current generation chips. NVIDIA is also improving the GPU portion, and Tegra 4 will reportedly feature a 72 core GPU based on a new architecture. Unfortunately, we do not have specifics on how that GPU is set up architecturally, but the leaked slide indicates that the GPU will be as much as 6x faster than NVIDIA’s own Tegra 3. It will allegedly be fast enough to power displays with resolutions from 1080p @ 120Hz to 4K (refresh rate unknown). Don’t expect to drive games at native 4K resolution, however it should run a tablet OS fine. Interestingly, NVIDIA has included hardware to hardware accelerate VP8 and H.264 video at up to 2560x1440 resolutions.
Additionally, Tegra 4 will feature support for dual channel DDR3L memory, USB 3.0 and hardware accelerated secuity options including HDCP, Secure Boot, and DRM which may make Tegra 4 an attractive option for Windows RT tablets.
The leaked slide has revealed several interesting details on Tegra 4, but it has also raised some questions on the nitty-gritty details. Also, there is no mention of the dual core variant of Tegra 4 – codenamed Grey – that is said to include an integrated Icera 4G LTE cellular modem. Here’s hoping more details surface at CES next month!
* NVIDIA's name for a CPU that features four ARM CPU cores and one lower power ARM companion core.
Subject: General Tech, Mobile | April 7, 2012 - 07:11 PM | Tim Verry
Tagged: tegra 4, tegra, SoC, nvidia, mobile
The Chinese language VR-Zone website has allegedly managed to get their hands on a leaked specifications sheet for NVIDIA’s upcoming Tegra 4 System-on-a-chip (SoC) aimed at mobile tablets. Codenamed “Wayne,” the new SoC will come in several flavors and will arrive next year.
The upcoming chips will have 10x the performance of NVIDIA’s original Tegra and five times the performance of the current generation Kal-El Tegra 3 chip. NVIDIA has run into several hurdles in integrating an LTE cell radio into their SoCs, but if the leaked document is true, the company will finally release a Tegra chp with built-in LTE 100 and HSPA42 cell radio capabilities as early as the third quarter of 2013.
Further, the Tegra 4 SoCs will come in four flavors: T40, T43, AP40, and SP3X. T40 will represent the first Tegra 4 chp that manufacturers and consumers will be able to get their hands on -- as early as Q1 2013. It is a quad core part with one companion core and will run at 1.8 GHz. T43 is an evolution of the T40 and will bump up the clockspeed to 2.0 GHz. The AP40 chip will be the first budget Tegra 4 processor and will run anywhere between 1.2 GHz and 1.8 GHz. The T43 and AP40 SoCs are reportedly coming out in Q3 2013. All three chips -- The T40, T43, and AP40 -- are based on the ARM Cortex A15 architecture.
|Release Date||Q1 2013||Q3 2013||Q3 2013||Q3 2013|
|Markets Aimed At||Flagship||Flagship||Mainstream||Mainstream|
|Tablet Device Screen Size||10"||10"||10"||7"|
|Processor Clockspeed||1.8 GHz||2.0 GHz||1.2-1.8 GHz||1.2-2.0 GHz|
The final Tegra 4 chip is called SP3X, and it will arrive in Q3 2013. Aimed at mainstream tablets with 7” or smaller screens, the upcoming SoC will feature LTE support and will have a clockspeed of 1.2 GHz to 2.0 GHz. It is a quad core (plus one companion core) part but is reportedly based on the ARM Cortex A9 architecture. The leaked release dates do seem to be in line with earlier reports, though they should still be taken with your daily dose of salt.
Right now Tegra delivers on performance and many high end mobile devices have incorporated the NVIDIA chip. Even so, they still have very little market share, and the two mainstream Tegra 4 chips -- especially the SP3X with LTE radio -- should help them make inroads against Qualcomm and Samsung who hold a great deal of market share.
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