View source for MP6

{{Short description|1998 microprocessor}}
{{other uses|mP 6 (disambiguation)}}
{{lower case|mP6}}
{{Infobox CPU
| name           = Rise mP6
| image          = KL_Rise_MP6_266.jpg
| image_size     = 200px
| caption        = Rise Technology mP6 microprocessor, 387-ball [[Ball grid array|BGA]]-package mounted on 296-pin Socket 7 [[Pin grid array|PPGA]]-adapter.
| produced-start = 1998
| produced-end   = 1999
| slowest        = 166 | slow-unit      = MHz
| fastest        = 250 | fast-unit      = MHz
| fsb-slowest    = 83  | fsb-slow-unit  = Mhz
| fsb-fastest    = 100 | fsb-fast-unit  = Mhz
| size-from      = 0.25 µm
| size-to        = 0.18 µm
| soldby         = [[Rise Technology]]
| designfirm     = Rise Technology
| manuf1         = [[TSMC]]<ref>{{cite web |url=http://alasir.com/x86ref/index2.html |title=32 BITS: SUPERSCALAR: 4.26. Rise iDragon mP6 |accessdate=3 November 2011 |archive-url=https://web.archive.org/web/20120421033425/http://alasir.com/x86ref/index2.html |archive-date=21 April 2012 |url-status=dead }}</ref>
| core1          = Kirin
| core2          = Lynx
| code           = 6441
| sock1          = [[Super Socket 7]]
| pack1          = [[Ball grid array|BGA-387]]
| pack2          = [[Ceramic pin grid array|CGPA-296]]
| brand1         =
| arch           = [[x86-16]], [[IA-32]]
| microarch      = 8-stage ([[Integer (computer science)|integer]])/4-stage ([[Floating point]]), triple pipelined design
| cpuid          = 00000504 (Kirin)<br />00000521 (Lynx)<ref>{{cite web |title=x86, x64 Instruction Latency, Memory Latency and CPUID dumps |url=http://www.freeweb.hu/instlatx64/ |date=22 October 2011 |accessdate=3 November 2011}}</ref>
| numcores       = 1
| l1cache        = 16 [[Kibibyte|KiB]]
| l2cache        = Motherboard dependent
| l3cache        = none
| application    =
| predecessor    =
| successor      = Rise mP6-II
}}
The '''Rise mP6''' was a [[Instruction pipeline|superpipelined]] and [[superscalar]]<ref name="CPUWorld">{{cite web |last=Shvets |first=Gennadiy |title=Rise Technology MP6 family |url=http://www.cpu-world.com/CPUs/MP6/ |work=CPU World |date=8 October 2011 |accessdate=1 November 2011}}</ref> [[microprocessor]] designed by [[Rise Technology]] to compete with the [[Intel]] [[Intel P5|Pentium]] line.

==History==
[[Rise Technology]] had spent 5 years developing a [[x86]] [[Computer compatibility|compatible]] [[microprocessor]],<ref>{{cite web |title=Rise mP6 |url=http://www.cpu-collection.de/?tn=&l0=co&l1=Rise&l2=mP6 |work=CPU-collection.de |accessdate=1 November 2011}}</ref> and finally introduced it in November 1998 as a low-cost, low-power alternative for the [[Super Socket 7]] platform, that allowed for higher [[Front-side bus]] speeds than the previous [[Socket 7]] and that made it possible for other CPU manufacturers to keep competing against [[Intel]], that had moved to the [[Slot 1]] platform.

===Design===
The mP6 made use of the [[MMX (instruction set)|MMX]] instruction set and had three MMX pipelines which allowed the CPU to execute up to three MMX instructions in a single cycle. Its three integer units made it possible to execute three integer instructions in a single cycle as well and the fully pipelined floating point unit could execute up to two floating-point instructions per cycle. To further improve the performance the core utilized [[Branch predictor|branch prediction]] and a number of techniques to resolve [[data dependency]] conflicts.<ref name="CPUWorld" /> 
According to Rise, the mP6 should perform almost as fast as [[Intel Pentium II]] at the same frequencies.<ref name="X-bitLAbs">{{cite web |last=Gravrichenkov |first=Ilya |title=Rise mP6 266 Review |url=http://www.xbitlabs.com/articles/cpu/display/rise-mp6.html |work=X-bit Laboratories |date=15 May 1999 |accessdate=1 November 2011 |url-status=dead |archiveurl=https://web.archive.org/web/20090507122023/http://www.xbitlabs.com/articles/cpu/display/rise-mp6.html |archivedate=7 May 2009 }}</ref>

===Performance===
Despite its innovative features, the real-life performance of the mP6 proved disappointing. This was mainly due to the small [[CPU_caches#Multi-level_caches|L1 Cache]].<ref name="X-bitLAbs" /> Another reason was that the Rise mP6's PR 266 rating was based upon the old Intel Pentium MMX,<ref name="X-bitLAbs" /> while its main competitors were the [[Celeron|Intel Celeron 266]], the [[WinChip|IDT WinChip 2-266]] and the [[AMD K6-2|AMD K6-2 266]], that all delivered more performance in most benchmarks and applications.<ref name="X-bitLAbs" /> The Celeron and the K6-2 actually worked at 266 MHz, and the WinChip 2's PR rating was based upon the performance of its AMD opponent.<ref name="X-bitLAbs" />

===Use===
Announced in 1998, the chip never achieved widespread use,{{citation needed|date=August 2011}} and Rise quietly exited the market in December of the following year.

Like competitors [[Cyrix]] and [[Integrated Device Technology|IDT]], Rise found it was unable to compete with [[Intel]] and [[AMD]].

==Legacy==
[[File:DM&P Vortex86DX.jpg|thumb|left|110px|A Vortex86DX]]
[[Silicon Integrated Systems]] (SiS) licensed the mP6 technology, and used it in the SiS 550, a [[system-on-a-chip]] (SoC) that integrated the mP6 CPU, the north and south bridges, and sound and video on a single chip. The SiS 550 saw use in some compact PCs and in consumer devices, such as [[DVD]] players. The SiS 551 chip was also marketed by DM&P as [[Vortex86]] (M6127D).

Later DM&P took over mP6 design from SiS and continues development under [[Vortex86]] [[System-on-a-chip|SoC]] product line.

DM&P further signed an agreement with Xcore to allow them to rebrand the chip as '''Xcore86'''.<ref>[https://www.reuters.com/article/pressRelease/idUS138410+06-Jan-2009+BW20090106 Xcore Corporation Ltd. has entered into an agreement with DMP Electronics Inc.] {{webarchive|url=https://web.archive.org/web/20090404182246/http://www.reuters.com/article/pressRelease/idUS138410+06-Jan-2009+BW20090106 |date=2009-04-04 }}</ref>

==mP6 data==
{| class="wikitable"
|+ The various models of the Rise mP6 with their [[Performance Rating|PR rating]], data from<ref name="CPUWorld"/><ref name="X-bitLAbs"/>
! Model number !! Frequency !! [[CPU_caches#Multi-level_caches|L1 Cache]] !! [[Front-side bus|FSB]] !! [[CPU multiplier|Mult.]] !! [[CPU core voltage|Voltage]] !! [[Thermal design power|TDP]] !! [[CPU socket|Socket]] !! Release date !! Part number(s) !! Introduction price
|-
| PR 166 || 166 [[MHz]] || 8 (data) +<br /> 8 (instructions) [[Kilobyte|KB]] || 83 [[Mhz]] || 2× || 2.75–2.85 [[Volt|V]] || 7.28 [[Watt|W]] || [[Super Socket 7]]<br />[[Ball grid array|BGA]] 387<br />[[Pin grid array|PPGA]] 296 || 13 October 1998 || MP6441RPFE4-Q || $50
|-
| PR 233 || 190 MHz || 8 (data) +<br /> 8 (instructions) KB || 95 Mhz || 2× || 2.75–2.85 V || 8.11 W || [[Super Socket 7]]<br />[[Ball grid array|BGA]] 387<br />[[Pin grid array|PPGA]] 296 || 13 October 1998 ||
|-
| PR 266 || 200 MHz || 8 (data) +<br /> 8 (instructions) KB || 100 Mhz || 2× || 2.75–2.85 V]|| 8.54 W]|| [[Super Socket 7]]<br />[[Ball grid array|BGA]] 387<br />[[Pin grid array|PPGA]] 296 || 13 October 1998 || MP6441DPFH4-Q<br />MP6441RPFH4-Q || $70
|-
| PR 333 || 240 MHz || 8 (data) +<br /> 8 (instructions) KB || 95 Mhz || 2.5× || 2 V || 10.18 W || [[Super Socket 7]]<br />[[Ball grid array|BGA]] 387<br />[[Pin grid array|PPGA]] 296 || 26 May 1999<br />Samples only || MP65RPAPG5-ES ||
|-
| PR 366<ref>{{cite web |last=Shvets |first=Gennadiy |title=Rise Technology MP6 PR 366 |url=http://www.cpu-world.com/CPUs/MP6/Rise%20Technology-MP6%20PR%20366%20MHz%20-%20MP65RPAPH5-DS.html |work=CPU World |date=8 October 2011 |accessdate=1 November 2011}}</ref> || 250 MHz || 8 (data) +<br /> 8 (instructions) KB || 100 Mhz || 2.5× || 2 V || 10.72 W || [[Super Socket 7]]<br />[[Ball grid array|BGA]] 387<br />[[Pin grid array|PPGA]] 296 || 26 May 1999<br />Samples only || MP65RPAPH5-DS ||
|}

==References==
{{reflist}}

==External links==
* [https://web.archive.org/web/20081202013630/http://www.cpu-info.com/index2.php?mainid=mP6 CPU-INFO: Rise MP6, indepth processor history]
* [https://web.archive.org/web/20060615180701/http://www.sandpile.org/impl/mp6.htm mP6]
* [http://www.cpushack.com/2010/10/07/the-rise-of-the-vortex86-embedded-x86/ The Rise of the Vortex86: Embedded x86 Processors]

[[Category:Computer-related introductions in 1998]]
[[Category:Superscalar microprocessors]]
[[Category:X86 microprocessors|Rise]]