
HP ProBook 455 G2 Notebook Review
AMD A6 Pro-7050B | AMD Radeon R4 (Kaveri) | 15.60" | 2.2 kg
The AMD A6 Pro-7050B is a power efficient ULV (Ultra Low Voltage) dual-core processor based on the Kaveri architecture. It was revealed in June 2014 for notebooks and is manufactured by GlobalFoundries using a 28 nm SHP process. In addition to having one CPU module for a total of two integer cores clocked at 2.2 - 3.0 GHz, the AMD chip also integrates a Radeon R4 GPU clocked at up to 533 MHz with 192 GCN shaders and a dual-channel DDR3-1600 memory controller.
Technically, the 7050B is almost identical with the consumer model A6-7000. However, AMD guarantees an especially high stability and durability for the business-oriented Pro-Series.
Architecture
Kaveri is the successor to the 2013 Richland architecture (e.g. A10-5750M). The revised CPU cores, codenamed Steamroller, represent the third generation of the module-based Bulldozer design. A number of major changes include modified decoders (now one per integer core), optimized branch prediction, and increased L1 I-cache from 64 KB to 96 KB per module. These revisions boost the performance per clock slightly over a similarly clocked Richland APU. For more details about the AMD Kaveri architecture, see our detailed analysis here:
Analysis of the AMD Kaveri Notebook Platform
Performance
The A6 Pro-7050B offers a relatively low CPU performance somewhere between an Intel Atom Z3735G and Pentium 977. Overall, the 7050B is sufficient for simple everyday workloads (Office, light browsing, multimedia), but will struggle in more demanding applications or multitasking.
Graphics
The Radeon R4 (Kaveri) GPU of the A6 Pro-7050B features a core clock of up to 533 MHz and 192 shader units. Since the GPU is based on AMD's GCN 1.1 architecture, both DirectX 11.2 "Tier 2" and Mantle are supported. Furthermore, the GPU can be used for general purpose computing in various applications, such as Adobe Photoshop via the OpenCL API.
In terms of 3D performance, the GPU is roughly as fast as the Intel HD Graphics (Haswell) or HD Graphics 4000. Limited by the CPU performance, however, only a few older and less demanding games such as Trackmania will run fluently in (very) low settings.
Power Consumption
The power consumption of the entire APU is rated at 17 Watts, which is somewhat above the Haswell ULV CPUs from Intel (15 W including chipset). Nevertheless, the A6 Pro-7050B is suited for 12 - 13-inch notebooks or larger.
Codename | Kaveri | ||||||||||||||||||||||||||||||||||||||||
Series | AMD Kaveri | ||||||||||||||||||||||||||||||||||||||||
Series: Kaveri Kaveri
| |||||||||||||||||||||||||||||||||||||||||
Clock Rate | 2200 - 3000 MHz | ||||||||||||||||||||||||||||||||||||||||
Level 2 Cache | 1 MB | ||||||||||||||||||||||||||||||||||||||||
Number of Cores / Threads | 2 / 2 | ||||||||||||||||||||||||||||||||||||||||
Power Consumption (TDP = Thermal Design Power) | 17 Watt | ||||||||||||||||||||||||||||||||||||||||
Transistor Count | 2410 Million | ||||||||||||||||||||||||||||||||||||||||
Manufacturing Technology | 28 nm | ||||||||||||||||||||||||||||||||||||||||
Die Size | 245 mm2 | ||||||||||||||||||||||||||||||||||||||||
Features | SSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, FMA, DDR3-1600 Controller | ||||||||||||||||||||||||||||||||||||||||
GPU | AMD Radeon R4 (Kaveri) ( - 533 MHz) | ||||||||||||||||||||||||||||||||||||||||
64 Bit | 64 Bit support | ||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | ||||||||||||||||||||||||||||||||||||||||
Announcement Date | 06/04/2014 | ||||||||||||||||||||||||||||||||||||||||
Product Link (external) | www.amd.com |
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