Qualcomm Unveils Snapdragon 6 Gen 1 and 4 Gen 1 SoCs: Updating Mid-Range and Entry-Level Phones - AnandTech

Qualcomm this morning is taking the wraps off a pair of new SoCs for the mid-range and entry-level smartphone markets. Refreshing the company’s longstanding 600 and 400 series of chips, Qualcomm is announcing the Snapdragon 6 Gen 1 and Snapdragon 4 Gen 1. Both SoCs are receiving similar spec bumps, incorporating newer and faster IP blocks from Qualcomm – such as Arm Cortex-A78 derived CPU cores – as well as moving to newer, more contemporary manufacturing processes.

The Snapdragon 600/400 lineups were last updated in mid and early 2021 respectively, so as Qualcomm is already preparing for 2023, the time has finally come to update the bottom half of their product stack. Following Qualcomm’s broad cascading IP strategy, this generation of parts sees both SoC lineups migrate to Cortax-A78 CPUs for their main CPU cores, and in the case of the 6 Gen 1, doubling the number of high-performance CPU cores. Both SoCs also come with faster Adreno GPUs, though in traditional Qualcomm fashion, the company isn’t offering much in the way of details on the underlying hardware there.

Notably, however, Qualcomm’s 2023 mid-range/low-end parts aren’t making the jump to the Armv9 architecture. Unlike the 8 Gen 1 and 7 Gen 1, which incorporated Arm’s new Armv9 cores, Qualcomm’s cascading development strategy means that the 6 and 4 series will remain a bit farther behind the curve. For end users this should have little significance for the moment, but for smartphone vendors and software developers, it does mean Qualcomm won’t complete the Armv9 transition for at least another generation.

Meanwhile, coming up on nearly a year since Qualcomm announced their initial Snapdragon 8 Gen 1 SoC, today’s announcement from Qualcomm brings their remaining smartphone SoC families in alignment with their new product branding strategy. The 6 and 4 series pick up from where the 600 and 400 series left off, respectively, resetting the counted with the inaugural Gen 1 parts. Like the rest of simplified “Gen” series, this also means that Qualcomm is doing away with individual model numbers for its Kyro/Hexagon/Adreno/Spectra blocks, obfuscating a bit what generation of IP Qualcomm is using there.

Snapdragon 6 Gen 1

Starting things off, we have the Snapdragon 6 Gen 1. Built on an unidentified 4nm process (Qualcomm hasn’t specified whether it’s Samsung or TSMC), it replaces the outgoing Snapdragon 695. And in the process, delivers some major updates to the CPU, camera, memory, and modem blocks.

Qualcomm Snapdragon 6-Series SoCs
SoC	Snapdragon 6 Gen 1	Snapdragon 695	Snapdragon 690	Snapdragon 675
CPU	4x CA78 @ 2.2GHz 4x CA55 @ 1.8GHz	2x Kryo 660 (CA77) @ 2.2GHz   6x Kryo 660 (CA55) @ 1.7GHz	2x Kryo 560 (CA77) @ 2.0GHz   6x Kryo 560 (CA55) @ 1.7GHz	2x Kryo 460 (CA76) @ 2.0GHz   6x Kryo 460 (CA55) @ 1.7GHz
GPU	Adreno	Adreno 619	Adreno 619L	Adreno 612
DSP	Hexagon	Hexagon 686	Hexagon 692	Hexagon 685
ISP/ Camera	Spectra (3x 12-bit) 1x 108MP or 48MP with ZSL or 25+16MP with ZSL or 3x 13MP with ZSL 4K HDR video	Spectra 346T (3x 12-bit) 1x 108MP or 32MP with ZSL or 25+13MP with ZSL or 3x 13MP with ZSL	Spectra 355L (2x 14-bit) 1x 192MP or 32+16MP with ZSL	Spectra 250L (2x 14-bit) 1x 192MP or 16+16MP with ZSL
Encode/ Decode	2160p30 H.264, H.265, VP9 (Decode-Only) HLG	1080p60 H.264 & H.265
Memory	2x 16-bit @ 2750MHz LPDDR5 22.0GB/s	2x 16-bit @ 2133MHz LPDDR4X 17.1GB/s	2x 16-bit @ 1866MHz LPDDR4X 14.9GB/s
Integrated Modem	X62 Integrated LTE 5G NR Sub-6 + mmWave 140MHz + 200MHz DL = 2900 Mbps	X51 Integrated LTE DL = 800 Mbps UL = 210 Mbps 5G NR Sub-6 + mmWave DL = 2500 Mbps UL = 1500 Mbps	X51 Integrated LTE DL = 1200 Mbps UL = 210 Mbps 5G NR Sub-6  DL = 2500 Mbps UL = 900 Mbps	X12 LTE Integrated (Category 12/13) DL = 600Mbps 3x20MHz CA, 256-QAM UL = 150Mbps 2x20MHz CA, 64-QAM
Wi-Fi/BT	Wi-Fi 6E (2x2) Bluetooth 5.2	Wi-Fi 5 (2x2) Bluetooth 5.2	Wi-Fi 5 (2x2) Bluetooth 5.1	Wi-Fi 5 (2x2) Bluetooth 5.0
Mfc. Process	4nm	TSMC 6nm	8nm LPP	11nm LPP

The biggest news this year is arguably that Qualcomm has rearranged the CPU core configuration for their mid-range SoC lineup. Whereas previous 6-series used a 2+6 configuration with two high-performance (Cortex-A7x) cores and 6 high-efficiency (Cortex-A5x) cores, 6 Gen 1 shifts this over to a 4+4 configuration, very similar to what Qualcomm already does for the 8 and 7 series. The net result is that, combined with the shift to Cortex-A78 CPU cores for the performance cores, the 6 Gen 1 should offer significantly better CPU performance than its predecessor, with Qualcomm touting a 40% improvement. With that said, it will be interesting to see what the larger number of performance cores means for the 6 Gen 1’s battery life, as these cores are going to be (relatively) more power hungry.

On the GPU side of matters, Qualcomm isn’t saying much about the Adreno GPU block used here. With that said, the explicit mention of variable rate shading support does imply that it’s from a newer generation of Qualcomm’s GPU IP, as the feature was not available on the Snapdragon 695. Qualcomm’s claims of an (up to) 35% GPU performance improvement also hint at a more significant update to their GPU.

Feeding the SoC is an LPDDR5-capable memory controller, bringing that down to a 6-series chip for the first time. The maximum frequency supported here is slightly lower than Qualcomm’s higher-end SoCs, at LPDDR5-5500, which combined with the 32-bit memory bus nets a total of 22GB/second of memory bandwidth. This works out to a roughly 29% increase in memory bandwidth.

Qualcomm has also updated their Hexagon DSP/AI block for their latest 6-series chip. The unnamed version of the IP is one of Qualcomm’s “7^th generation” designs, meaning that along with vector and scalar processing, it also includes tensor processing capabilities that are chiefly aimed at speeding up AI inference.

As for the camera/ISP, Qualcomm is still using a triple 12-bit ISP here, with some modest performance improvements in terms of pixel throughput. The big news here is the (re)introduction of HDR support for the 6-series, with Qualcomm supporting computational HDR on this class of SoC for the first time. As a result the 6 Gen 1 can handle 4K HDR video recording at up to 30fps.

Last but not least, Qualcomm has also significantly upgraded the wireless capabilities of the SoC, both for cellular and Wi-Fi communications. On the cellular side of matters, the chip integrates a Snapdragon X62-class modem, supporting both sub-6 and mmWave bands. Qualcomm isn’t providing a detailed breakout of transfer speeds, but on paper the modem can achieve downloads as fast as 2.9Gbps over 5G. Meanwhile the Wi-Fi radio has undergone a long-overdue upgrade, replacing Qualcomm’s dated Wi-Fi 5 FastConnect 6200 radio with a more modern Wi-Fi 6E radio based on their FastConnect 6700 IP.

Of today’s two SoC announcements, the 6 Gen 1 is the more forward looking of the two. According to Qualcomm, we should see handsets using the new SoC show up in the first quarter of 2023, approximately four to six months from now.

Snapdragon 4 Gen 1

Meanwhile, bringing up the entry-level segment of Qualcomm’s SoCs is the new Snapdragon 4 Gen 1. Unlike its 6 Gen 1 counterpart, Qualcomm isn’t as extensively updating this chip, but the 4 Gen 1 should still deliver some modest improvements over its predecessor, the Snapdragon 480.

Qualcomm Snapdragon 4-Series SoCs
SoC	Snapdragon 4 Gen 1	Snapdragon 480	Snapdragon 460
CPU	2x CA78 @ 2.0GHz  6x CA55 @ 1.8GHz	2x CA76 @ 2.0GHz   6x CA55 @ 1.8GHz	4x Kryo 240 (CA73) @ 1.8GHz   4x Kryo 240 (CA53) @ 1.8GHz
GPU	Adreno	Adreno 619	Adreno 610
DSP	Hexagon	Hexagon 686	Hexagon 683
ISP/ Camera	Spectra (3x 12-bit) 1x 108MP or 32MP with ZSL or 25+13MP with ZSL or 3x 13MP with ZSL	Spectra 345 (3x 12-bit) 1x 64MP or 25+13MP or 3x 13MP	Spectra 340 (2x 14-bit) 1x 48MP or 2x 22MP dual
Encode/ Decode	1080p60 H.264, H.265, VP9 (Decode-Only)
Memory	2x 16-bit @ 2133MHz LPDDR4X 17.0GB/s	2x 16-bit @ 2133MHz LPDDR4X 17.0GB/s	2x 16-bit @ 1866MHz LPDDR4X 14.9GB/s
Integrated Modem	X51 Integrated LTE DL = 800Mbps UL = 210Mbps 5G NR Sub-6 (no mmWave) 100MHz DL = 2500Mbps UL = 900Mbps	X51 Integrated LTE DL = 800Mbps UL = 210Mbps 5G NR Sub-6 + mmWave (100 + 200MHz) DL = 2500Mbps UL = 660Mbps	X11 LTE Integrated (Cat 12/13) DL = 390Mbps 2x20MHz CA, 256-QAM UL = 150Mbps 2x20MHz CA, 64-QAM
Wi-Fi/BT	Wi-Fi 5 (2x2) Bluetooth 5.2	Wi-Fi 5 (2x2) Bluetooth 5.1	Wi-Fi 5 (1x1) Bluetooth 5.1
Mfc. Process	TSMC 6nm	8nm LPP	11nm LPP

On the CPU front, the 4 Gen 1 is getting the same Cortex-A78 upgrade as the 6 Gen 1, pairing the cores with Cortex-A55 cores in a 2+6 configuration. In terms of architectural improvements this is actually a bigger step up here than it was for the 6 Gen 1, as the Snapdragon 4 series previous used Cortex-A76 cores here. Still, with CPU frequencies still capped at 2.0GHz, all of the performance gains will have to come sole from the CPU architectural improvements. Overall, Qualcomm is touting a 15% improvement in CPU performance.

As for the GPU, the 4 Gen 1 gets an unnamed Adreno GPU block. This is again a more modest upgrade, with Qualcomm promoting an (up to) 10% increase in GPU performance. But as Qualcomm isn’t upgrading the memory controller – the 4 Gen 1 still uses LPDDR4X-4266 memory on a 32-bit bus – there aren’t any memory bandwidth improvements to feed a significantly faster GPU anyhow.

The camera/ISP block for the new 4-series SoC is also quite similar to its predecessor, with Qualcomm employing a triple 12-bit ISP. The notable improvement here is that Qualcomm has significantly increased the maximum photo resolution to 108MP, almost doubling the number of pixels that can be captured in a single shot, and in the process matching what the more powerful 6-series SoCs can do.

Meanwhile, in a sign that mmWave adoption in handsets isn’t as high as Qualcomm initially planned, the 4 Gen 1’s wireless suite ends up being a regression of sorts. The 5G Snapdragon X51 modem ends up dropping mmWave support, leaving just support for the sub-6 bands. Still, this is enough to drive download speeds of up to 2.5Gbps, and supported upload speeds are now as high as 900Mbps. The Wi-Fi radio remains similarly unchanged, with Qualcomm using a Wi-Fi 5 + Bluetooth 5.2 radio based on their FastConnect 6200 IP.

Finally, the Snapdragon 4 Gen 1 is being fabbed on TSMC’s 6nm process, making it the latest Qualcomm SoC line to be shifted over to TSMC from rival Samsung. According to Qualcomm, handsets based on the SoC will be shipping imminently, with devices slated to become available in the remainder of this quarter.

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Qualcomm Unveils Snapdragon 6 Gen 1 and 4 Gen 1 SoCs: Updating Mid-Range and Entry-Level Phones - AnandTech
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