 | This article'sfactual accuracy may be compromised due to out-of-date information. Please help update this article to reflect recent events or newly available information.(August 2024) |
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| Company type | Public |
|---|---|
| (TWSE:2363) | |
| Founded | 1987; 38 years ago (1987) |
| Headquarters | Hsinchu Science Park,Taiwan |
| Website | www |
Silicon Integrated Systems (SiS;Chinese:矽統科技;pinyin:Xìtǒng Kējì) is a company that manufactures, among other things, motherboard chipsets. The company was founded in 1987 inHsinchu Science Park,Taiwan.
In the late 1990s, SiS made the decision to invest in their own chipfabrication facilities. At the end of 1999, SiS acquiredRise Technology and itsmP6 x86 core technology.[1]Silicon Integrated Systems (SiS) acquired Hycon Technology on January 1, 2025. The acquisition involved SiS issuing 0.8713 shares for every Hycon share, totaling 27,755,080 shares.[2]
 | It has been suggested that this article besplit out into a new article titledList of SiS chipsets. (Discuss)(December 2020) |
One of the most famous chipsets produced by SiS was the late 486-age chipset 496/497 which supportedPCI bus among olderISA- andVLB-buses. Mainboards using this chipset and equipped with CPUs such as theIntel 80486DX4,AMD 5x86 orCyrix Cx5x86 processors had performance and compatibility comparable with early IntelPentium systems in addition to a lower price.
After this late success, SiS continued positioning itself as a budget chipset producer. The company emphasized high integration to minimize the cost to implement their solutions. As such, SiS one-chip mainboard chipsets that included integrated video, such as theSocket 7-based SiS 5596, SiS 5598, and SiS 530 along with theSlot 1-based SiS 620. These were some of the first PC chipsets with such high integration. They allowed entire system solutions to be built with just a mainboard, system RAM, and a CPU.
| Chipset | Release date | Part numbers | South Bridge | Socket | Processors | FSB | Memory types | Max. memory | Parity/ECC | L2 Cache Type | VLB support | PCI support |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiS 310, 320, 330 | 1991 | SiS 85C310, SiS 85C320, SiS 85C330 | N/A | 132-pinPGA | 386DX | 25/33/40 MHz | FPM | 32 MB | ?? | Async. | No | No |
| SiS 401/402 | SiS 85C401, SiS 85C402 | 132-pinPGA, Socket 1/2/3 | 386DX, 5V 486 | 25/33/40/50 MHz | 64 MB | Parity | ||||||
| SiS 406/411 | 1991? | SiS 85C406, SiS 85C411 | ||||||||||
| SiS 460 | 1993 | SiS 85C460 | Yes | |||||||||
| SiS 461 | SiS 85C461 | |||||||||||
| SiS 471 | 1994 | SiS 85C471 | Socket 1/2/3 | 5 V/3.3 V 486, Am5x86, Cx5x86, Pentium Overdrive | 128 MB | |||||||
| SiS 496/497 | 1995 | SiS SiS85C496, SiS SiS85C497 | SiS 497 | FPM, EDO | 256 MB | 2.0 |
TheSiS 530 (Sindbad) with SiS 5595 southbridge supportedSocket 7,SDRAM 1.5 GB max., a bus frequency from 66 MHz to 124 MHz, and can have from 2 to 8MiB shared memory for an integratedAGP SiS 6306 2D/3D graphics controller. Includes integratedUDMA66 IDE controller. mainboards using the SiS 530 were positioned as cheap office platforms and paired often with low-cost chips fromIntel competitors, such as theAMD K6 series orCyrix 6x86. The graphics controller hadDirect3D 6.0 andOpenGL support, although it was a very low-performance product for 3D acceleration.[3]
SiS 540 (Spartan) integrates SiS 300 graphics controller.
| Chipset | Release date | Part numbers | South Bridge | Socket | Processors | FSB | Memory types | Max. memory | Max. cacheable | Parity/ECC | L2 Cache Type | PCI support | Graphics slot | IGP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiS 501/502/503 | 1995 | SiS 85C501, SiS 85C502, SiS 85C503 | SiS 503 | Socket 4 Socket 5/7 | Pentium, AMD K5, Cyrix 6x86 | 50/60/66 MHz | FPM | 128 MB | 128 MB | N/A | Async. | 2.0 | N/A | No |
| SiS 5101/5102/5103 | SiS 5103 | FPM, EDO | 512 MB | 512 MB | ||||||||||
| SiS 5501/5502/5503 | SiS 5503 | ? | ||||||||||||
| SiS 5511/5512/5513 | SiS 5513 | Socket 5/7 | 512 MB 1 GB may be possible | ? | Parity | Async. / Pburst | 2.1 | |||||||
| SiS 5596/5513 | 1996 | Pentium, Pentium MMX, 6x86, AMD K5/K6, Rise mP6, IDT Winchip | 512 MB | N/A | SiS 6205[4] | |||||||||
| SiS 5571 | Northbridge integrated | Socket 7 | 50/60/66/75 MHz | FPM, EDO, SDRAM | 384 MB | 64 MB? | No | |||||||
| SiS 5120 | 1997 | 128 MB | ||||||||||||
| SiS 5581 | ||||||||||||||
| SiS 5582 | ||||||||||||||
| SiS 5597 | SiS 5597 | |||||||||||||
| SiS 5598 | SiS 5598 | |||||||||||||
| SiS 5591/5595 | 1998 | SiS 5595 | 768 MB | 256 MB | AGP 1×/2× | No | ||||||||
| SiS 5592/5595 | ||||||||||||||
| SiS 530 | 66/75/83/90/95/100 MHz | 1536 MB | 2.2 | N/A | SiS 6306 | |||||||||
| SiS 540 | 1999 | Northbridge integrated | SDRAM, VCSDRAM | 512 MB | ECC | 2.2 | SiS 300 |
| Chipset | Release date | South Bridge | Socket | Processors | FSB | Memory types | Memory bus | Max. memory | Graphics slot | IGP |
|---|---|---|---|---|---|---|---|---|---|---|
| SiS 5600 | 1998 | SiS 5595 | Slot 1 | Pentium II/III, Celeron | 66/100 MHz | FPM, EDO, SDRAM | 66/100 MHz SDR | 1.5 GB | AGP 1×/2× | No |
| SiS 600 | ||||||||||
| SiS 620 | Aug 1998 | Slot 1, Socket 370 | SDRAM | N/A | SiS 6306 | |||||
| SiS 630 | 2000 | Northbridge integrated | 66/100/133 MHz | SDRAM, VCSDRAM | 66/100/133 MHz SDR | SiS305 | ||||
| SiS 630S | SDRAM | AGP 2×/4× | ||||||||
| SiS 630ST | 2001 | Socket 370 | Pentium III, Tualatin, Celeron | |||||||
| SiS 630E | 2000 | Slot 1, Socket 370 | Pentium II/III, Celeron | N/A | ||||||
| SiS 630ET | 2001 | Socket 370 | Pentium III, Tualatin, Celeron | |||||||
| SiS 633 | Pentium III, Celeron | AGP 2×/4× | ||||||||
| SiS 633T | Pentium III, Tualatin, Celeron | |||||||||
| SiS 635 | Pentium III, Celeron | SDRAM, DDR | 100/133 MHz SDR, 200/266 MHz DDR | No | ||||||
| SiS 635T | Pentium III, Tualatin, Celeron | |||||||||
| SiS 640T | Never released | SiS961, SiS961B | 100/133 MHz SDR, 200/266 MHz DDR? | AGP 2×/4×? | SiS315 |
SiS andALi were the only two companies initially awarded licenses to produce third party chipsets for thePentium 4. SiS developed the 648 chipset with this license (SiS 648 B Stepping supports Intel Hyper-Threading CPU on some motherboards like MSI 648 Max).[5]
| Chipset | Release date | South Bridge | Socket | Processors | FSB | Memory types | Memory bus | Max. memory | Graphics slot | IGP |
|---|---|---|---|---|---|---|---|---|---|---|
| SiS 645[6] | 2001 | SiS961, SiS961B | Socket 423,Socket 478 | Pentium 4, Celeron | 400 MHz | SDR SDRAM,DDR SDRAM | 100/133 MHz SDR, 200/266/333 MHz DDR | 3 GB | AGP 2×/4× | No |
| SiS 645DX[6] | 2002 | SiS961, SiS962, SiS962L | Socket 478 | 400/533 MHz | ||||||
| SiS 650[6] | 2001 | SiS961, SiS961B | Socket 423, Socket 478 | 400 MHz | 100/133 MHz SDR, 200/266 MHz DDR | SiS315 | ||||
| SiS 650GX | 100/133 MHz SDR, 200/266/333 MHz DDR | |||||||||
| SiS 651 | SiS962, SiS962L | Socket 478 | 400/533 MHz | |||||||
| SiS 648 | SiS963, SiS963L | DDR SDRAM | 200/266/333 MHz DDR | AGP 4×/8× | No | |||||
| SiS 648FX[6] | 2003 | SiS963, SiS963L, SiS964 | Socket 478, Socket 775 | Pentium 4, Pentium 4 EE, Celeron, Celeron D | 400/533/800 MHz | 200/266/333/400 MHz DDR | ||||
| SiS 655[7] | SiS963, SiS963L | Pentium 4, Celeron | 400/533 MHz | Dual Channel DDR SDRAM | 266/333/400 MHz DDR | 4 GB | ||||
| SiS 655FX | SiS964, SiS964L | Socket 478 | Pentium 4, Pentium 4 EE, Celeron, Celeron D | 400/533/800 MHz | ||||||
| SiS 655TX | Socket 478 | |||||||||
| SiS 661FX[6] | 2003 | Socket 478, Socket 775 | DDR SDRAM | 3 GB | Mirage | |||||
| SiS 661GX | ||||||||||
| SiS 656 | SiS965, SiS965L | Socket 775 | Pentium 4, Pentium 4 EE, Celeron D | 533/800 MHz | Dual Channel DDR/DDR2 SDRAM | 266/333/400 MHz DDR, 400/533 MHz DDR2 | 4 GB | PCI-E x16 | No | |
| SiS 656FX | SiS966, SiS966L | Pentium 4, Pentium 4 EE, Pentium D, Celeron D | 266/333/400 MHz DDR, 400/533/667 MHz DDR2 | |||||||
| SiS 649 | SiS965, SiS965L | Pentium 4, Pentium 4 EE, Pentium D, Celeron, Celeron D | 400/533/800 MHz | DDR SDRAM, DDR2 SDRAM | 200/266/333/400 MHz DDR, 400/533 MHz DDR2 | 2 GB | ||||
| SiS 649FX | SiS966, SiS966L | |||||||||
| SiS 649DX | DDR2 SDRAM | 400/533 MHz DDR2 | ||||||||
| SiS 662 | Pentium 4, Pentium 4 EE, Pentium D, Core 2 Duo, Pentium Dual Core, Celeron, Celeron D | 533/800 MHz | 400/533/667 MHz DDR2 | Mirage 1 | ||||||
| SiS 671 | SiS968 | 533/800/1066 MHz | 4 GB | SiS351 (Mirage 3) | ||||||
| SiS 671FX | ||||||||||
| SiS 671DX | ||||||||||
| SiS 672 | 533/800 MHz | |||||||||
| SiS R658 | SiS963, SiS963L | Socket 478 | Pentium 4, Celeron | 400/533 MHz | Dual Channel RDRAM | PC1066 RDRAM/RIMM 4200/4800 | 4 GB (1 GB per Channel) | AGP 4×/8× | No |
| Chipset | Release date | Southbridge | Processors | FSB | Memory types | Memory bus | Max. memory | AGP | IGP |
|---|---|---|---|---|---|---|---|---|---|
| SiS 730 | Dec 2000 | Northbridge integrated | Slot A,Socket A | 100/133 MHz[8] | SDR SDRAM | 100/133 MHz SDR | 1.5 GB | 2×/4× | SiS305 |
| SiS 733 | 200/266 MHz | No | |||||||
| SiS 735[9] | SDR SDRAM,DDR SDRAM | 100/133 MHz SDR, 200/266 MHz DDR | |||||||
| SiS 740[10] | SiS961, SiS962L | Socket A | SiS315 | ||||||
| SiS 745[10] | 2001 | Northbridge integrated | 100/133 MHz SDR, 200/266/333 MHz DDR | 3 GB | No | ||||
| SiS 746[11] | SiS963, SiS963L | DDR SDRAM | 200/266/333 MHz DDR | 4×/8× | |||||
| SiS 746FX[11] | 200/266/333 MHz | 200/266/333/400 MHz DDR | |||||||
| SiS 748[12] | 2003 | 200/266/333/400 MHz | |||||||
| SiS 741GX[13] | SiS964, SiS964L | 266/333 MHz | 266/333 MHz DDR | Mirage | |||||
| SiS 741[13] | 266/333/400 MHz | 266/333/400 MHz DDR |
Memory support is dependent on the CPU
| Chipset | Release date | Southbridge | Processors | HT | Graphics slot | IGP |
|---|---|---|---|---|---|---|
| SiS 755 | 2003 | SiS963, SiS963L, SiS964, SiS964L | Socket 754 | HT 800 | AGP 4×/8× | No |
| SiS 755FX | 2004 | SiS964, SiS964L | Socket 939 | HT 1000 | ||
| SiS 760 | 2003 | Socket 754 | HT 800 | Mirage 2 | ||
| SiS 760GX | 2004 | Socket 754, Socket 939 | ||||
| SiS 756 | SiS965, SiS965L | HT 1000 | PCI-E x16 | No | ||
| SiS 761GX[14] | 2005 | SiS964, SiS964L, SiS965, SiS965L | Socket 754, Socket 939, Socket AM2 | Mirage 1 | ||
| SiS 771[15] | 2006 | SiS966, SiS966L, SiS968 | Socket AM2 | SiS351 (Mirage 3) |
SiS created a multimedia chipset for theXbox 360.[16]
Paired with later SiS chipsets, such as the 661GX/761GX, which adopt a standard two-chip chipset design (instead of single-chip, like the olderSiS 630/730 series chipsets). SiS southbridges can handle IDE, LAN (accompanied by aPHY chip), audio (with an AC'97 codec), along with other types of I/O. SiS' proprietary MuTIOL interconnect connects the southbridge chip to the northbridge, which contains the RAM controller (for chipsets targeted at Intel platforms) and interfaces with the CPU.
| Southbridge | Release date | NB/SB Interconnect | PCI Express/Ports | Serial ATA/RAID | Parallel ATA | USB | Audio | LAN MAC | IEEE 1394 |
|---|---|---|---|---|---|---|---|---|---|
| SiS 497 | 1995 | VLB | N/A | N/A | 4xPIOATA Devices | N/A | N/A | N/A | No |
| SiS 503 | Local Bus, PCI | N/A | |||||||
| SiS 5103 | 4xPIO/WDMA ATA Devices | ||||||||
| SiS 5503 | |||||||||
| SiS 5513 | |||||||||
| SiS 5595 | 1997 | PCI | 4x ATA/33 Devices | 1.1, 2 ports | |||||
| SiS 961[17][18] | 2001 | MuTIOL®, 533MB/s | 4x ATA/100 Devices | 1.1, 6 ports | AC'97 | 10/100 | |||
| SiS 961B | ? | 4x ATA/133 Devices | |||||||
| SiS 962 | 2002 | 2.0, 6 ports | Yes | ||||||
| SiS 962L | No | ||||||||
| SiS 963[7] | MuTIOL® 1G, 1GB/s | Yes | |||||||
| SiS 963L[19] | No | ||||||||
| SiS 964[13] | 2003 | 2x SATA/150, RAID 0,1,JBOD | 2.0, 8 ports | ||||||
| SiS 964L | |||||||||
| SiS 965 | 2005? | PCIe x1, 2 lanes | 4x SATA/150, RAID 0,1,0+1,JBOD | 10/100/1000 (SiS 191) | |||||
| SiS 965L | 2x SATA/150, RAID 0,1,JBOD | 10/100 (SiS 190) | |||||||
| SiS 966[20] | 4x SATA/150 (AHCI), RAID 0,1,0+1,JBOD | AC'97/HD Audio | 10/100/1000 (SiS 191) | No | |||||
| SiS 966L | 2x SATA/150 (AHCI), RAID 0,1,JBOD | 10/100 (SiS 190) | |||||||
| SiS 968[21] | 2007? | 2x SATA/300 (AHCI), RAID 0,1,JBOD | 2x ATA/133 Devices | HD Audio | 10/100/1000 | No |
| Model | Launch | Fab (nm) | Businterface | Core clock (MHz) | Memory clock (MHz) | Core config1 | Fillrate | Memory | API support | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOperations/s | MPixels/s | MTexels/s | MVertices/s | Size (MB) | Bandwidth (GB/s) | Bus type | Bus width (bit) | Direct3D | OpenGL | |||||||
| SiS 6326 | 1997 | AGP 1× PCI | 40 | 45-80 45–90 66–133 | 1:0:1:1 | 40 | 40 | 40 | 0 | 2-8 | 0.36-0.64 0.36-0.72 0.53-1.06 | FPM EDO SDR | 64 | 5.0 | N/A | |
| SiS 300 | 2000 | 250 nm | AGP 4× PCI | 125 | 166 | 125 | 125 | 125 | 0 | 64 | 2.66 | SDR | 128 | 6.0 | 1.1 | |
| SiS 305 | 2000 | 250 nm | AGP 4× PCI | 125 | 125 | 125 | 125 | 125 | 0 | 32 | 1.00 | SDR | 64 | 6.0 | 1.1 | |
| SiS 315 | 2001 | AGP 4× PCI | 166 | 166 333 | 2:0:4:2 | 333 | 333 | 667 | 0 | 64 | 2.66 5.33 | SDR DDR | 128 | 7.0 | 1.3 | |
| SiS 315E | 2001 | AGP 4× PCI | 143 | 143 286 | 2:0:2:2 | 286 | 286 | 286 | 0 | 32 | 1.14 2.28 | SDR DDR | 64 | 7.0 | 1.3 | |
| Xabre 80 | 2002 | 150 nm | AGP 4× | 200 | 333 | 4:1:8:4 | 800 | 800 | 1600 | 50 | 64 | 5.33 | DDR | 128 | 8.1 | 1.3 |
| Xabre 200 | 2002 | 150 nm | AGP 8× | 200 | 400 | 4:1:8:4 | 800 | 800 | 1600 | 50 | 32 64 | 6.40 | DDR | 128 | 8.1 | 1.3 |
| Xabre 400 | 2002 | 150 nm | AGP 8× | 250 | 400 | 4:1:8:4 | 1000 | 1000 | 2000 | 67.5 | 64 128 | 8.00 | DDR | 128 | 8.1 | 1.3 |
| Xabre 600 | 2002 | 130 nm | AGP 8× | 300 | 600 | 4:1:8:4 | 1200 | 1200 | 2400 | 75 | 64 128 | 9.60 | DDR | 128 | 8.1 | 1.3 |
| Model | Core | Launch | Fab (nm) | Businterface | Core clock (MHz) | Memory clock (MHz) | Core config1 | Fillrate | Memory | API support | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MOperations/s | MPixels/s | MTexels/s | MVertices/s | Size (MB) | Bandwidth (GB/s) | Bus type | Bus width (bit) | Direct3D | OpenGL | ||||||||
| SiS 530/620 | SiS 6306 | 1998 | Ultra AGP | 40 | 66-100 | 1:0:1:1 | 40 | 40 | 40 | 0 | 1-8 | 0.533-0.8 | SDR | 64 | 5.0 | N/A | |
| SiS 540 | SiS 300 | 1999 | Ultra AGP | ? | 66-133 | 1:0:1:1 | ? | ? | ? | 0 | 4-64 | 0.533-1.066 | SDR | 64 | 6.0 | 1.1 | |
| SiS 630 | SiS 305 | 2000 | Ultra AGP | 125 | 66-133 (System) ??? (EGM) | 1:0:1:1 | 125 | 125 | 125 | 0 | 4-64 | 0.533-1.066 (System) ??? (EGM) | SDR | 64 (System) 128 (EGM) | 6.0 | 1.1 | |
| SiS 730 | SiS 305 | 2000 | Ultra AGP | 125 | 100-133 (System) ??? (EGM) | 1:0:1:1 | 125 | 125 | 125 | 0 | 4-64 | 0.8-1.066 (System) ??? (EGM) | SDR | 64 (System) 128 (EGM) | 6.0 | 1.1 | |
| Real256 | SiS 315 | 2001 | Ultra AGP | 166 | 100-133 266–333 | 2:0:4:2 | 333 | 333 | 667 | 0 | 32-64 | 0.8-1.066 (SDR) 2.1-2.656 (DDR) | SDR DDR | 64 | 7.0 (no T&L) | 1.3 | |
| Mirage (Real256E) | SiS 315 | 2003 | Ultra AGP | 200 | 266-400 | 2:0:4:2 | 400 | 400 | 800 | 0 | 32-64 | 2.1-3.2 | DDR | 64 | 7.0 (no T&L) | 1.3 | |
| Mirage 1 | SiS 330 | 2004 | Ultra AGP | 200 | 266-400 | 2:0:4:2 | 400 | 400 | 800 | 0 | 32-64 | 2.1-6.4 (DDR) 3.2-12.8 (DDR2) | DDR DDR2 | 64 128 (AMD K8 only) | 7.0 (no T&L) | 1.3 | |
| Mirage 2 | 2004 | Ultra AGP | 200 | 266-400 400–800 | 4:0:8:4 | 800 | 800 | 1600 | 0 | 32-256 | 2.1-6.4 (DDR) 3.2-12.8 (DDR2) | DDR DDR2 | 64 128 | 8.1 | 1.4 | ||
| Mirage 3 | SiS 351 | 2006 | Integrated | 250 | 400-667 | 2:0:4:2 | 500 | 500 | 1000 | 0 | 32-256 | 3.2-5.3 (Intel) 3.2-12.8 (AMD) | DDR2 | 64 128 (AMD K8 only) | 9.0 | 1.5 | |
| Mirage 3+ | 2007 | Integrated | 300 | 400-667 | 2:0:4:2 | 600 | 600 | 1200 | 0 | 32-256 | 3.2-5.3 | DDR2 | 64 | 9.0 | 1.5 | ||
| Mirage 4[22][23][24][25][26][27] | Never released | Integrated | ? | 400-1066 | ? | ? | ? | ? | ? | ?-256 | 3.2-17.0 | DDR2 | 64 128 | 10.0 (PS 4.0/VS 3.0) | 2.0 | ||
Some cards contain a 3D graphics accelerator but it is only functional with the SiS's Proprietary Windows-only driver[28] (the company does not provide[29] documentation for others to write drivers). However, the Linux kernel includes a working third party driver that, while not supporting 3D gaming, makes the cards usable under Linux.
| Semiconductors |
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| Computers |
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| Mobile | |||||||||||
| Networking and NAS | |||||||||||
| OEM | |||||||||||
| Consumer electronics | |||||||||||
| Defunct | |||||||||||
