Clarksfield (microprocessor)

{{Infobox CPU

| name = Clarksfield

| image =

| image_size =

| caption =

| produced-start = 2009

| produced-end = 2012

| slowest = 1.60

| fastest = 2.13 (turbo up to 3.33)

| fsb-slowest =

| fsb-fastest =

| fsb-slow-unit =

| fsb-fast-unit =

| size-from = 45 nm

| size-to =

| soldby =Intel

| designfirm = Intel

| core1 =

| sock1 = Socket G1 (rPGA988)

| pack1 =Reduced pin grid array (rPGA)

| brand1 = Core i7-7xxQM

| brand2 = Core i7-8xxQM

| brand3 = Core i7-9xxXM

| arch = x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2

| microarch = Nehalem

| numcores = 4

| cpuid = 106Ex

| code = 80607

| l1cache =256 KB (64 KB per core (32 KB instructions + 32 KB data))

| l2cache = 1 MB (256 KB per core)

| l3cache = 6 to 8 MB

| application = Quad-core mobile
Extreme mobile

|manuf1=Intel|dmi-slowest=2.5|amountmemory=Up to 8 GB|memory1=Up to DDR3-1333 with 21 GB/s bandwidth|predecessor=Penryn-QC|successor=Sandy Bridge|support_status=Unsupported|instructions=MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2}}

Clarksfield is the code name for an Intel processor, initially sold as mobile Intel Core i7.[http://www.pcworld.com/article/152473/intel_mobile_nehalem.html Mobile Nehalem Chips May Come in Late 2009]. PCWorld (2008-10-19). Retrieved on 2011-01-14. It is closely related to the desktop Lynnfield processor, both use quad-core dies based on the 45 nm

Nehalem microarchitecture and have integrated PCI Express and DMI links.

The predecessor of Clarksfield, Penryn-QC was a multi-chip module with two dual-core Penryn dies based on Penryn microarchitecture, a shrink of Merom microarchitecture. The name of the direct successor of Clarksfield has not been announced. Arrandale is a later mobile processor but opens a new line of mid-range dual-core processors with integrated graphics.

At the time of its release at the Intel Developer Forum on September 23, 2009, Clarksfield processors were significantly faster than any other laptop processor,[http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3647 Mobile Core i7 920XM, Clarksfield: Nehalem on-the-go – AnandTech :: Your Source for Hardware Analysis and News]. AnandTech. Retrieved on 2011-01-14. including the Core 2 Extreme QX9300. The initial laptop manufacturers shipping products based on Clarksfield processors include MSI, Dell/Alienware, Hewlett-Packard, Toshiba and Asustek.[https://www.pcmag.com/article2/0,2817,2353228,00.asp Intel Execs Introduce Clarksfield, Tout Mobility | News & Opinion]. PCMag.com. Retrieved on 2011-01-14.