Bobcat (microarchitecture)
Computer microarchitecture created by AMD
From Wikipedia, the free encyclopedia
The AMD Bobcat Family 14h is a microarchitecture created by AMD for its AMD APUs, aimed at a low-power/low-cost market.[1]
| General information | |
|---|---|
| Launched | early 2011 |
| Discontinued | present |
| Common manufacturer | |
| Physical specifications | |
| Socket |
|
| Architecture and classification | |
| Technology node | 40 nm |
| Instruction set | AMD64 (x86-64) |
| Products, models, variants | |
| Core name | |
| History | |
| Successor | Jaguar - Family 16h |
It was revealed during a speech from AMD executive vice-president Henri Richard in Computex 2007 and was put into production Q1 2011.[2] One of the major supporters was executive vice-president Mario A. Rivas who felt it was difficult to compete in the x86 market with a single core optimized for the 10–100 W range and actively promoted the development of the simpler core with a target range of 1–10 W. In addition, it was believed that the core could migrate into the hand-held space if the power consumption can be reduced to less than 1 W.
Bobcat cores are used together with GPU cores in accelerated processing units (APUs) under the "Fusion" brand.[3][4] A simplified architecture diagram was released at AMD's Analyst Day in November 2009. This is similar in concept with earlier AMD research in 2003,[5] detailing the specifications and advantages of extending x86 "everywhere".
Design
The Bobcat x86 CPU core design has since been completed and implemented in AMD APU processor products with a TDP of 18 W or less. The core is targeted at low-power markets like netbooks/nettops, ultra-portable laptops, consumer electronics and the embedded market. Since its launch, Bobcat-based CPUs have also been used by OEMs on larger laptops. Architecture specifics:[6]
- 64-bit core
- Out-of-order execution
- Advanced branch predictor
- Dual x86 instruction decoder
- 64-bit integer unit with two ALUs
- Floating-point unit with two 64-bit pipes
- Single channel 64-bit memory controller
- 32 KiB instruction + 32 KiB data L1 cache
- 512 KiB - 1 MiB L2 cache
- MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, ABM
In February 2013, AMD detailed plans for a successor to Bobcat codenamed Jaguar.
Features
Processors
In January 2011 AMD introduced several processors that have implemented the Bobcat core. This core is in the following AMD Accelerated Processors:[6][7][8]
| Series ^ | Model | CPU clock (MHz) | CPU cores | TDP (W) | L2 cache (KiB) | Radeon cores | GPU clock (MHz) | DirectX version | UVD | DDR3 speed |
|---|---|---|---|---|---|---|---|---|---|---|
| C-Series | C-30 | 1000 | 1 | 9 | 512 | 80 | 277 | 11 | UVD 3 | 1066 |
| C-50 | 2 | 2*512 | 276 | |||||||
| C-60 | 1000/1333 (turbo) | 276/400 (turbo) | ||||||||
| C-70 | ||||||||||
| E-Series | E-240 | 1500 | 1 | 18 | 512 | 500 | ||||
| E-300 | 1300 | 2 | 2*512 | |||||||
| E-350 | 1600 | 492 | ||||||||
| E-450 | 1650 | 508/600 (turbo) | 1333[9] | |||||||
| E1-1200 | 1400 | 500 | 1066 | |||||||
| E1-1500[10] | 1480 | 529 | ||||||||
| E2-1800 | 1700 | 523/680 | 1333 | |||||||
| E2-2000[10] | 1750 | 538/700 | ||||||||
| G-Series | T-24L | 800 | 1 | 5 | 512 | ? | 1066 | |||
| T-30L | 1400 | 18 | 1333 | |||||||
| T-40N | 1000 | 2 | 9 | 2*512 | 276 | 11 | UVD 3 | 1066 | ||
| T-44R | 1200 | 1 | 512 | |||||||
| T-48E | 1400 | 2 | 18 | 2*512 | 280 | |||||
| T-48L | ? | |||||||||
| T-48N | 492 | 11 | UVD 3 | |||||||
| T-52R | 1500 | 1 | 512 | |||||||
| T-56N | 1600 | 2 | 2*512 | |||||||
| Z-Series | Z-01 | 1000 | 5.9 | 276 | ||||||
| Z-60[11] | 4.5 | 275 | ||||||||
^ E-Series & C-Series are standard parts, G-Series are embedded parts
See also
- Bulldozer, a new core for the 10 to 125 Watt TDP range.
- List of AMD processors with 3D graphics