Samsung Exynos 2600: Inside the World’s First 2nm Chip with AMD RDNA4

About this piece: editorial content based on the manufacturer’s published specifications and prior-generation comparison. Affiliate links, where present, may pay a small commission to NewTechReview; the assessment is written before any link is added.

The Samsung Exynos 2600 is the most ambitious chip Samsung Semiconductor has released in years: the world’s first mobile processor built on a 2nm GAA (Gate-All-Around) process, pairing a new-generation Arm CPU cluster with the Xclipse 960 GPU — based on AMD’s RDNA4 architecture, the same generation powering the RX 9000 desktop graphics cards. For the hundreds of millions of Galaxy S26 and S26+ buyers outside the United States and South Korea, this chip defines the entire smartphone experience.

The Samsung-AMD partnership, which began with the Xclipse 920 in the Exynos 2200, has matured considerably. After generations marred by overheating complaints, poor efficiency ratings, and consistent performance gaps versus Qualcomm’s Snapdragon, the Exynos 2600 arrives with a genuinely different story: measurable gains in thermal efficiency, a significant GPU leap, and a CPU position that, while still below the Snapdragon 8 Elite Gen 5, carries a substantially narrower gap than any previous Exynos. Understanding every nuance matters before making a purchase decision.

Why the Exynos 2600 Matters in 2026

2026 is the year the mobile chip race became more technical than ever. Apple maintains its efficiency leadership with the A-series on TSMC’s latest process, while Qualcomm consolidated its Android performance crown with the Snapdragon 8 Elite platform. In this landscape, Samsung needed more than an incremental upgrade to justify the Exynos as a legitimate option for its flagship — and the company bet everything on the first 2nm process in commercial-scale production, built in its own fabs (Samsung Foundry SF2, second-generation 2nm GAA).

For global markets — Europe, most of Asia, Latin America — the Exynos 2600 is the chip in the Galaxy S26 and S26+. Only the S26 Ultra and units sold in the US and South Korea carry the Snapdragon 8 Elite Gen 5 for Galaxy. This geographic split makes understanding the Exynos 2600’s real strengths and limitations critically important for the majority of worldwide buyers. Beyond the consumer angle, the Exynos 2600 also represents an industry milestone: proving that a 2nm GAA process can move from research phase to mass-market product — a result that, if successful at scale, could reshape Samsung Foundry’s competitive position against TSMC.

The broader context is equally important. Qualcomm’s Oryon-based CPU cores have set a new bar for ARM performance, Apple’s Neural Engine continues to raise the floor for on-device AI, and MediaTek’s Dimensity 9400 is a capable contender. The Exynos 2600 enters this competitive field not with a guaranteed win, but with more genuine arguments than any Exynos before it.

How 2nm GAA Works — and Why It Changes the Game

To understand why the fabrication process matters to the end user, it helps to step back. Modern chips are built from transistors that act as microscopic switches controlling electron flow. Until recently, the dominant technology was FinFET — a design where the conducting channel has a “fin” shape and the control gate covers three sides. As transistors shrink, controlling that electrical flow becomes increasingly difficult, parasitic currents waste energy, and chips run hotter.

GAA (Gate-All-Around) solves this elegantly: the conducting channel is completely surrounded by the gate, maximizing electrical control, drastically reducing leakage currents and allowing operation at lower voltages. In practical terms, the result is either more performance for the same energy budget, or the same performance generating substantially less heat — and excess heat has historically been the defining weakness of Exynos chips.

Samsung’s 2nm GAA (SF2) is the second generation of this technology at Samsung Foundry. According to Samsung Semiconductor’s published data, SF2 delivers up to 30% higher transistor density than the previous 3nm GAA process (SF3E) and improves power efficiency by approximately 25%. For the Exynos 2600, this translates to CPU cores running at higher clocks — the prime Cortex-X4 reaches 3.3 GHz — without the thermal penalties that defined the Exynos 2200 and 2400. One important caveat: Samsung’s “2nm” is not directly comparable to TSMC’s “3nm.” Each foundry uses its own naming methodology, and the number is more a generational marker than a literal physical dimension. What matters is real-world chip behavior — and there, the available benchmark data tells a more positive story than any previous Exynos.

Samsung Exynos 2600 Specifications

Component	Detail
Process	Samsung 2nm GAA (SF2) — first commercial 2nm product
CPU	1× Cortex-X4 @ 3.3 GHz + 3× Cortex-A720 @ 2.9 GHz + 4× Cortex-A520 @ 2.0 GHz
GPU	Xclipse 960 (AMD RDNA4) — 8 WGPs / 16 Compute Units @ ~980 MHz
NPU	113% faster generative AI vs Exynos 2400 (Samsung claim); supports SME2
ISP	8K HDR video support with enhanced motion tracking
Modem	External — Exynos Modem 5410 (Shannon 5410), separate die
Connectivity	5G Sub-6 GHz + mmWave (via external modem), Wi-Fi 7, Bluetooth 5.4, UWB
Ray tracing	Native RDNA4 RT; up to 50% faster vs Xclipse 940 (RDNA3) per Samsung data
Graphics APIs	Vulkan 1.3, OpenGL ES 3.2, OpenCL 3.0
SME2	Scalable Matrix Extension 2 — lightweight AI inference on CPU without waking NPU
Found in	Galaxy S26, Galaxy S26+ (global markets: Europe, Asia ex-Korea, Latin America)

Editorial Methodology

Editorial methodology: this piece combines official spec sheets, public demos and comparison with the prior generation. We make clear what is announced versus what is our technical reading. Real-world impressions are added once we have a unit.

What to Check Before Buying a Flagship Smartphone

Beyond headline specs, several factors routinely go unnoticed during the buying process yet define the real-world experience. The table below captures the most important ones.

What to Check	Why It Matters	Watch Out For
Fabrication process	Determines power efficiency and transistor density	Naming conventions differ across foundries — compare real performance, not just the number
Prime core clock	Drives single-thread responsiveness: apps, games, UI	Marketing claims of “12 cores” include efficiency cores — prime core clock sets the actual peak
GPU architecture	Defines graphics quality, ray tracing, and API support	CU/WGP count plus clock set throughput — demand numbers, not just architecture names
Sustained performance	Shows whether the chip maintains speed or throttles under load	Peak benchmarks are misleading — look for sustained stress test results (e.g. 3DMark Stress)
Integrated vs external modem	Affects battery efficiency and thermal output	Rarely highlighted in marketing — always check the full spec sheet
NPU and on-device AI	Enables offline AI with privacy and low latency	Vague claims need a metric — TOPS (tera-operations per second) is the industry standard

Head-to-Head Comparison

Metric	Exynos 2600	Snapdragon 8 Elite Gen 5	MediaTek Dimensity 9400
Process	2nm GAA (Samsung)	3nm (TSMC)	3nm (TSMC)
CPU single-thread	~3,085 pts (GB6)	~3,677 pts (+19%)	~3,200 pts
CPU multi-thread	~10,484 pts (GB6)	~11,163 pts (+6.5%)	~10,800 pts
GPU ray tracing	Very strong (RDNA4)	Essentially tied	Weaker
GPU rasterization	~25% below SD8E	Reference	Close to SD8E
Sustained performance	74.9% (best here)	53.8%	~65% (estimate)
Modem	External (5410)	Integrated	Integrated
Generative AI (NPU)	+113% vs Exynos 2400	Reference (Hexagon)	Competitive

GeekBench 6 scores based on data from Android Authority and Gadget Hacks Galaxy S26 testing. Dimensity 9400 multi-core estimate from published reviews.

Who Should Buy the Galaxy S26/S26+ with Exynos 2600

Everyday users: anyone using the phone for social media, streaming, photography and daily apps will not notice the ~19% CPU peak gap versus the Snapdragon. Daily performance is smooth and fully competitive with any other Android flagship in 2026.

Samsung Galaxy AI enthusiasts: the 113% NPU leap is real and directly benefits on-device AI features — offline translation, document summarization, AI photo editing. SME2 further enables smaller AI models to run on the CPU at low latency. For users who rely on Galaxy AI, the Exynos 2600 is highly competitive.

Mobile gamers: titles with ray tracing benefit from the AMD RDNA4, which is genuinely strong in that department. For games that lean on raw rasterization at sustained high frame rates, the Snapdragon retains an advantage — though the Exynos’s superior sustained performance (74.9% vs 53.8%) means fewer frame drops during long gaming sessions.

Global market buyers: outside the US and South Korea, the Galaxy S26 and S26+ arrive with Exynos 2600 in all major retail channels. Obtaining a Snapdragon version would require importing, with associated costs and warranty complications. The Exynos 2600 is the practical choice — and, for the first time in years, a technically sound one too.

Alternatives to Consider

Galaxy S26 Ultra (Snapdragon 8 Elite Gen 5 for Galaxy): the clear choice if peak CPU and rasterization GPU performance are the priority and the budget allows. Adds the S Pen, a periscope camera and the very best Snapdragon chip Samsung qualifies.

Xiaomi 15 Pro / OnePlus 13 (Snapdragon 8 Elite): Snapdragon-powered Android flagships potentially available at lower prices than the S26 Ultra. Worth considering if Qualcomm CPU performance is the key deciding factor. Also check out our Qualcomm Snapdragon ecosystem analysis.

Apple iPhone 16 Pro (A18 Pro): still the benchmark for single-thread efficiency and software-hardware integration. For anyone open to switching ecosystems, it remains the standard for overall optimization. For context on GPU rendering technologies, see also our guide to AI-based graphics upscaling.

Frequently Asked Questions about the Exynos 2600

What is 2nm GAA and why does it matter for the end user?

2nm GAA (Gate-All-Around) is a transistor architecture in which the control gate completely surrounds the conducting channel, unlike FinFET where only three sides are covered. This geometry gives the gate tighter electrical control, reduces leakage currents and enables operation at lower voltages. For the end user, the practical outcome is a chip that delivers more performance per watt — or the same performance while generating less heat. Thermal management has historically been the defining weakness of Exynos chips, making this architectural shift especially consequential for Samsung’s flagship SoC.

Why does the Galaxy S26 outside the US use Exynos instead of Snapdragon?

Samsung uses a dual-chip strategy for commercial and strategic reasons. Using the Exynos in global markets reduces dependency on external suppliers and capitalizes on the company’s multi-billion dollar investment in Samsung Foundry. In the US and South Korea — where benchmark comparisons are closely followed by tech media and consumers — Samsung opts for the Snapdragon to maintain a perception of maximum performance. Everywhere else, including Europe, most of Asia, and Latin America, the Galaxy S26 and S26+ ship with the Exynos 2600. This generation makes that a less significant compromise than it once was.

Is the Exynos 2600 meaningfully weaker than the Snapdragon 8 Elite Gen 5?

It depends on the workload. In CPU single-thread benchmarks (GeekBench 6), the Snapdragon leads by roughly 19% — measurable in a test, but unlikely to be noticeable during daily use. In GPU ray tracing (3DMark Solar Bay), the two chips are essentially tied, with AMD’s RDNA4 delivering genuine strength in that area. The most striking difference is in sustained performance: the Exynos 2600 maintains 74.9% of its peak during prolonged stress tests, while the Snapdragon sustains 53.8% — suggesting that in long gaming sessions, the Exynos may actually behave more consistently than its peak numbers imply.

Is the external modem a real disadvantage for the Exynos 2600?

It is an architectural tradeoff with real pros and cons. The modem-free SoC design frees up die space for a larger NPU and ISP, and makes thermal management easier on a dense 2nm process. On the other hand, running two chips instead of one (the SoC plus the Exynos Modem 5410) can marginally increase power consumption and heat generation compared to a fully integrated design. Battery life data available for the Galaxy S26 with Exynos 2600 appears competitive, but this is a point worth monitoring as more independent teardown and endurance reviews become available.

Is the AMD RDNA4 GPU in the Exynos 2600 the same as in the RX 9000 desktop cards?

It is the same base architecture — the same instruction set, the same ray tracing approach, the same IPC improvements — but not the same implementation. Desktop RX 9070 and RX 9070 XT cards run dozens of Compute Units above 2 GHz, consuming 150-200W. The Xclipse 960 uses 16 CUs at approximately 980 MHz within a smartphone power envelope of under 10W. The architectural advantages of RDNA4 — improved ray tracing hardware, better texture units, higher efficiency per CU — are inherited, but the silicon is scaled entirely for mobile. Think of it as the same engineering family at completely different scales: an F1 engine and a kart engine share design principles, but not displacement.

Should you wait for the next Exynos or buy the Galaxy S26 now?

The Exynos 2600 is Samsung’s flagship chip for the entire 2026 cycle, and the Galaxy S26 is expected to receive software support for at least four years. There are no confirmed specifications or release dates for a successor beyond early rumors, and any next-generation Exynos would, at best, appear in devices during 2027. If the need for a new phone exists today, there is no solid technical argument for waiting. The Exynos 2600 is genuinely good — not merely “good for an Exynos.”

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