AMD Fusion
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| AMD Fusion | |
|---|---|
 | |
| Name | AMD Fusion |
| Aka | Accelerated Processing Unit |
| Developer | Advanced Micro Devices |
| Introduced | 2011 |
| Architecture | Heterogeneous System Architecture |
| Cores | CPU + GPU |
| Process | 28 nm, 32 nm |
| Socket | FM1, FM2, FM2+ |
| Predecessors | Phenom (microarchitecture); Turion (microprocessor) |
| Successors | Zen (microarchitecture); Ryzen (microprocessor) |
AMD Fusion AMD Fusion was the marketing name for a family of integrated processor products developed by Advanced Micro Devices that combined central processing and graphics processing onto a single die, branded as Accelerated Processing Units. Launched in 2011, Fusion targeted notebooks, desktops, and embedded systems and aimed to improve power efficiency, graphics performance, and heterogeneous computing. The initiative influenced later designs from NVIDIA, Intel Corporation, and the open standards promoted by the Heterogeneous System Architecture Foundation.
Background
AMD Fusion emerged from competitive pressure with Intel Corporation and rising interest in mobile multimedia from companies like Apple Inc., Qualcomm, and NVIDIA. The strategy built on acquisitions including ATI Technologies and leveraged AMD’s legacy designs such as K10 (microarchitecture) and Bobcat (microarchitecture). Industry events like CES and Computex were used to announce Fusion products and reference platforms. The program aligned with standards efforts from organizations like the Heterogeneous System Architecture Foundation and collaborations with software vendors including Microsoft, Adobe Systems, and Google to optimize media, gaming, and compute workloads.
Architecture
Fusion APUs integrated CPU cores derived from AMD architectures (e.g., Bulldozer (microarchitecture) lineage and low-power Bobcat (microarchitecture)) with GPU compute units descended from Radeon (brand) architectures. The design emphasized a unified memory architecture enabling coherent access between CPU and GPU, compatible with APIs used by DirectX, OpenCL, OpenGL, and Vulkan (API). Chipsets and southbridge functions interacted with Fusion through platform controllers from partners like ASMedia Technology and VIA Technologies. Power and thermal characteristics were shaped by fabrication processes at foundries such as GlobalFoundries and production nodes previously used by TSMC.
Product Lineup
The Fusion family included series marketed under A-Series (AMD) for desktops and laptops, low-power E-Series (AMD) for netbooks and ultrathin notebooks, and embedded variants for industrial partners such as Dell, HP Inc., Lenovo, Acer, and ASUS. Socket platforms included FM1 (socket) and later FM2 (socket), with successors moving to AM4 (socket). Specific APUs combined CPU cores with graphics labeled Radeon HD 6000M series lineage or later iterations tied to Graphics Core Next. OEM designs ranged from consumer notebooks in retail to systems sold through enterprise channels like Hewlett Packard Enterprise.
Performance and Benchmarks
Early Fusion APUs delivered improved integrated graphics performance compared to contemporaneous Intel integrated GPUs featured in Sandy Bridge and Ivy Bridge platforms, particularly in shader throughput and multimedia decoding for codecs supported by vendors like Netflix, YouTube, and Adobe Flash Player at the time. Benchmark suites from third-party labs such as Futuremark, PassMark, and publications including AnandTech and Tom's Hardware highlighted strengths in heterogeneous tasks using OpenCL and gaming at low resolutions. CPU raw performance trailed high-end Intel Core i7 parts in single-threaded workloads, while power-per-watt comparisons favored certain Fusion SKUs in mobile scenarios tested by outlets including Notebookcheck.
Software and Driver Support
Driver stacks for Fusion APUs combined components from the Radeon Software lineage and AMD’s CPU support layers, with distribution through partners like Microsoft for Windows Update and through package maintainers in distributions such as Ubuntu (operating system) and Fedora (operating system). Developers used tools published by AMD Developer Central for profiling and optimization with AMD CodeXL and later tools aligned with the Vulkan ecosystem. Support lifecycles were influenced by relationships with software vendors including Canonical (company) and Red Hat for Linux distributions, and with game engines such as Unreal Engine and Unity (game engine) for GPU-accelerated features.
Market Impact and Reception
Fusion helped reposition Advanced Micro Devices as a provider of heterogeneous compute solutions and pressured competitors to prioritize integrated graphics and power efficiency, contributing to strategic responses from Intel Corporation and renewed focus from NVIDIA on mobile GPUs. Reviews from technology press like Wired (magazine), The Verge, and CNET noted the practical benefits for mainstream multimedia laptops and budget desktops, while analysts at firms like Gartner and IDC commented on OEM adoption patterns. Fusion’s legacy persisted in later AMD products and influenced the broader push toward system-level integration seen in platforms from Apple Inc. and mobile SoC vendors.