 NSC Geode GXLV 233 MHz | |
| General information | |
|---|---|
| Launched | 1999 |
| Common manufacturer | |
| CPUID code | 540h |
| Performance | |
| Max.CPUclock rate | 180 MHz to 400 MHz |
| FSB speeds | 30 MHz to 33 MHz |
| Physical specifications | |
| Cores |
|
| Package |
|
| Sockets |
|
| Cache | |
| L1cache | 16 KiB unified (GXm/GXLV/GX1), 16 KiB instruction + 16 KiB data (GX2) |
| Architecture and classification | |
| Technology node | 0.15 μm to 0.35 μm |
| Microarchitecture | 5x86 |
| Instruction set | IA-32 |
| Extensions | |
| History | |
| Predecessor | CyrixMediaGX |
Geode is a series ofx86-compatiblesystem-on-a-chip (SoC)microprocessors and I/O companions produced byAMD that was targeted at theembedded computing market.
The series was originally launched byNational Semiconductor as theGeode family in 1999. The original Geode processor core itself is derived from theCyrixMediaGX platform, which was acquired in National's merger with Cyrix in 1997. AMD bought the Geode business from National in August 2003 to augment its existing line of embedded x86 processor products. Before acquiring Geode, AMD marketed theAMD Élan, a family of 32-Bit embedded SoCs based on their ownAm386,Am486 andAm586 microprocessors. All of these products have been backed with a long-term supply guarantee to meet the needs of embedded processors. However, after acquiring Geode, the product was suddenly discontinued.[1][2]
AMD expanded the Geode series to two classes of processor: the MediaGX-derived Geode GX and LX, and the modernAthlon-derived Geode NX.
Geode processors are optimized for low power consumption and low cost while still remaining compatible with software written for the x86 platform. The MediaGX-derived processors lack modern features such asSSE and a large on-dieL1 cache but these are offered on the more recent Athlon-derived Geode NX. Geode processors tightly integrate some of the functions normally provided by a separatechipset, such as thenorthbridge. Whilst the processor family is best suited forthin client,set top box andembedded computing applications, it can be found in unusual applications such as theNao robot and theWin Enterprise IP-PBX.
TheOne Laptop per Child project used the GX series Geode processor inOLPC XO-1 prototypes, but moved to the Geode LX for production.[3] TheLinutop (rebranded ArtecThinCan DBE61C or rebranded FIC ION603A) is also based on the Geode LX.3Com Audrey was powered by a 200 MHz Geode GX1.
The SCxxxx range of Geode devices are a single-chip version, comparable to theSiS 552,VIA CoreFusion or Intel'sTolapai, which integrate the CPU, memory controller, graphics and I/O devices into one package. Single processor boards based on these processors are manufactured byArtec Group,PC Engines (WRAP),Soekris, andWin Enterprises.
AMD discontinued all Geode processors in 2019.[4]
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Rebranded CyrixMediaGXm. Returns "CyrixInstead" onCPUID.
National Semiconductor/AMD SC1100 is based on the Geode GX1 core and the CS5530 support chip.
Announced by National Semiconductor Corporation October, 2001 at Microprocessor Forum. First demonstration atCOMPUTEX Taiwan, June, 2002.
Developed by National Tel Aviv (NSTA) based on IP from Longmont and other sources.
Applications:
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In 2002, AMD introduced theGeode GX series, which was a re-branding of the National Semiconductor GX2. This was quickly followed by theGeode LX, running up to 667 MHz. LX brought many improvements, such as higher speed DDR, a re-designed instruction pipe, and a more powerful display controller. The upgrade from the CS5535 I/O Companion to the CS5536 brought higher speed USB.
Geode GX and LX processors are typically found in devices such asthin clients and industrial control systems. However, they have come under competitive pressure fromVIA on the x86 side, andARM processors from various vendors taking much of the low-end business.
Because of the relative performance, albeit higherPPW, of the GX and LX core design, AMD introduced theGeode NX, which is an embedded version of theAthlon processor, K7. Geode NX uses theThoroughbred core and is quite similar to the Athlon XP-M that use this core. The Geode NX includes 256 KB of level 2 cache, and runs fanless at up to 1 GHz in the NX1500@6 W version. The NX2001 part runs at 1.8 GHz, the NX1750 part runs at 1.4 GHz, and the NX1250 runs at 667 MHz.
The Geode NX, with its strong FPU, is particularly suited for embedded devices with graphical performance requirements, such as information kiosks andcasino gaming machines, such as video slots.
However, it was reported that the specific design team for Geode processors inLongmont, Colorado, has been closed, and 75 employees are being relocated to the new development facility inFort Collins, Colorado. It is expected that the Geode line of processors will be updated less frequently due to the closure of the Geode design center.[5]
In 2009, comments by AMD indicated that there are no plans for any future microarchitecture upgrades to the processor and that there will be no successor; however, the processors will still be available with the planned availability of the Geode LX extending through 2015.[6][7] In 2016 AMD updated the product roadmap announcing extension of last time buy and shipment for the LX series to 2019.[8] In early 2018 hardware manufacturercongatec announced an agreement with AMD for a further extension of availability of congatec's Geode based platforms.[9]
| Model | Clock rate |
|---|---|
| Core (MHz) | |
| Geode GX 466@0.9 W | 333 |
| Geode GX 500@0.9 W | 366 |
| Geode GX 533@0.9 W | 400 |
| Model | Clock rate | Power consumption | TDP |
|---|---|---|---|
| Core (MHz) | W | ||
| Geode LX 600@0.7 W | 366 | 1.2 | 2.8 |
| Geode LX 700@0.8 W | 433 | 1.3 | 3.1 |
| Geode LX 800@0.9 W | 500 | 1.8 | 3.6 |
| Geode LX 900@1.5 W | 600 | 2.6 | 5.1 |
Features:
Specification:
Applications:
| Model | Fab (nm) | Clock rate | CPU cache (KB) | Power consumption | TDP | Core operatingvoltage (V) | ||
|---|---|---|---|---|---|---|---|---|
| Core (MHz) | FSB (MHz) | L1 | L2 | W | ||||
| Geode NX 1250@6 W | 130 | 667 | 133 | 128 | 256 | 6 | 9 | 1.00 |
| Geode NX 1500@6 W | 1000 | 1.10 | ||||||
| Geode NX 1750@14 W | 1400 | 14 | 25 | 1.25 | ||||
| Geode NX 2000[10] | 1800 | ? | ? | 1.40 | ||||
Features:
In 2007, there was aGeode NX 2001 model on sale, which was a relabelledAthlon XP 2200+ Thoroughbred. The processors, with part numbers AANXA2001FKC3G or ANXA2001FKC3D, their specifications are 1.8 GHz clock speed, and 1.65 volt core operating voltage. The power consumption is 62.8 Watt. There are no official references to this processor except officials explaining that the batch of CPUs were "being shipped to specific customers", though it is clear it is a desktop Athlon XP CPU core instead of the MobileAthlon XP-M derived Thoroughbred cores of the other Geode NX CPUs, and thus doesn't feature embedded application specific thermal envelope, power consumption and power management features. This kind of "badge engineering" of a particular CPU to accommodate a request for a desktop class chip from an OEM which merely wants to maintain brand recognition and association with the GeodeNX CPUs in its products, but the actual end-product application doesn't necessitate the advanced power and thermal optimization of the GeodeNX CPU's, is understandable, as re-labeling a part in a product catalog, is practically free and the processors do share the same CPU socket (Socket A).[11]