Difference between revisions of "intel/core i9/i9-12900kf"

	Edit Values
	Core i9-12900KF
	General Info
Designer	Intel
Manufacturer	Intel
Model Number	i9-12900KF
Part Number	CM8071504549231,; BX8071512900KF,; BXC8071512900KF
S-Spec	SRL4J
Market	Desktop
Introduction	October 27, 2021 (announced); November 4, 2021 (launched)
Release Price	$564 (tray); $574 (box)
Shop	Amazon
	General Specs
Family	Core i9
Series	i9-12000
Locked	No
Frequency	3,200 MHz
Turbo Frequency	5,100 MHz
Bus type	DMI 4.0
Bus rate	8 × 16 GT/s
Clock multiplier	32
	Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Alder Lake, Golden Cove, Gracemont
Core Name	Alder Lake S
Core Family	6
Core Model	151
Core Stepping	C0
Process	Intel 7
Technology	CMOS
Die	215.25 mm²; 20.5 mm × 10.5 mm
MCP	No (1 dies)
Word Size	64 bit
Cores	16
Threads	24
Max Memory	128 GiB
	Multiprocessing
Max SMP	1-Way (Uniprocessor)
	Electrical
TDP	125 W
Tjunction	0 °C – 100 °C
	Packaging
Package	FCLGA-1700 (LGA)
Dimension	45.0 mm × 37.5 mm
Contacts	1700
Socket	Socket V

Revision as of 09:24, 3 November 2021

Core i9-12900KF is a 64-bit hexadeca-core high-end performance x86 desktop microprocessor introduced by Intel in late 2021. This processor, which is based on the Alder Lake microarchitecture, is manufactured on Intel's Intel 7 process. The i9-12900KF is a heterogeneous multicore SoC integrating eight big Golden Cove cores along with eight small Gracemont cores. The big cores operate at 3.2 GHz with a Turbo Boost frequency of up to 5.1 GHz and a Turbo Boost Max frequency of up to 5.2 GHz. The small cores operate at 2.4 GHz with a Turbo Boost frequency of up to 3.9 GHz. This processor has a base power of 125 W and a maximum turbo power of 241 W. This chip supports up to 128 GiB of dual-channel DDR5-4800 memory.

The i9-12900K is an identical version of this chip with integrated graphics.

Cache

Main article: Alder Lake § Cache

This processor features 30 MiB of L3 cache shared among all the big cores and all the small core clusters.

Small Core

Main article: Gracemont § Cache

[Edit/Modify Cache Info]

Cache Organization

Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.

L1$

768 KiB

786,432 B
0.75 MiB

L1I$	512 KiB 524,288 B 0.5 MiB	8x64 KiB
L1D$	256 KiB 262,144 B 0.25 MiB	8x32 KiB

L2$

4 MiB

4,096 KiB
4,194,304 B
0.00391 GiB

		2x2 MiB

L3$

6 MiB

6,144 KiB
6,291,456 B
0.00586 GiB

		2x3 MiB

Big Core

Main article: Golden Cove § Cache

[Edit/Modify Cache Info]

Cache Organization

Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.

L1$

640 KiB

655,360 B
0.625 MiB

L1I$	256 KiB 262,144 B 0.25 MiB	8x32 KiB
L1D$	384 KiB 393,216 B 0.375 MiB	8x48 KiB

L2$

10 MiB

10,240 KiB
10,485,760 B
0.00977 GiB

		8x1.25 MiB

L3$

24 MiB

24,576 KiB
25,165,824 B
0.0234 GiB

		8x3 MiB

@@ Line 53: / Line 53: @@
 The {{\\|i9-12900K}} is an identical version of this chip with integrated graphics.
+== Cache ==
+{{main|intel/microarchitectures/alder_lake#Memory_Hierarchy|l1=Alder Lake § Cache}}
+This processor features 30 MiB of [[L3 cache]] shared among all the [[big cores]] and all the [[small core]] clusters.
+=== Small Core ===
+{{main|intel/microarchitectures/gracemont#Memory_Hierarchy|l1=Gracemont § Cache}}
+{{cache size
+|l1 cache=768 KiB
+|l1i cache=512 KiB
+|l1i break=8x64 KiB
+|l1d cache=256 KiB
+|l1d break=8x32 KiB
+|l2 cache=4 MiB
+|l2 break=2x2 MiB
+|l3 cache=6 MiB
+|l3 break=2x3 MiB
+}}
+=== Big Core ===
+{{main|intel/microarchitectures/golden cove#Memory_Hierarchy|l1=Golden Cove § Cache}}
+{{cache size
+|l1 cache=640 KiB
+|l1i cache=256 KiB
+|l1i break=8x32 KiB
+|l1d cache=384 KiB
+|l1d break=8x48 KiB
+|l2 cache=10 MiB
+|l2 break=8x1.25 MiB
+|l3 cache=24 MiB
+|l3 break=8x3 MiB
+}}

base frequency	3,200 MHz (3.2 GHz, 3,200,000 kHz) +
bus links	8 +
bus rate	16,000 MT/s (16 GT/s, 16,000,000 kT/s) +
bus type	DMI 4.0 +
clock multiplier	32 +
core count	16 +
core family	6 +
core model	151 +
core name	Alder Lake S +
core stepping	C0 +
designer	Intel +
die area	215.25 mm² (0.334 in², 2.153 cm², 215,250,000 µm²) +
die count	1 +
die length	20.5 mm (2.05 cm, 0.807 in, 20,500 µm) +
die width	10.5 mm (1.05 cm, 0.413 in, 10,500 µm) +
family	Core i9 +
first announced	October 27, 2021 +
first launched	November 4, 2021 +
full page name	intel/core i9/i9-12900kf +
has locked clock multiplier	false +
instance of	microprocessor +
is multi-chip package	false +
isa	x86-64 +
isa family	x86 +
l1$ size	768 KiB (786,432 B, 0.75 MiB) + and 640 KiB (655,360 B, 0.625 MiB) +
l1d$ size	256 KiB (262,144 B, 0.25 MiB) + and 384 KiB (393,216 B, 0.375 MiB) +
l1i$ size	512 KiB (524,288 B, 0.5 MiB) + and 256 KiB (262,144 B, 0.25 MiB) +
l2$ size	4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) + and 10 MiB (10,240 KiB, 10,485,760 B, 0.00977 GiB) +
l3$ size	6 MiB (6,144 KiB, 6,291,456 B, 0.00586 GiB) + and 24 MiB (24,576 KiB, 25,165,824 B, 0.0234 GiB) +
ldate	November 4, 2021 +
manufacturer	Intel +
market segment	Desktop +
max cpu count	1 +
max junction temperature	373.15 K (100 °C, 212 °F, 671.67 °R) +
max memory	131,072 MiB (134,217,728 KiB, 137,438,953,472 B, 128 GiB, 0.125 TiB) +
microarchitecture	Alder Lake +, Golden Cove + and Gracemont +
min junction temperature	273.15 K (0 °C, 32 °F, 491.67 °R) +
model number	i9-12900KF +
name	Core i9-12900KF +
package	FCLGA-1700 +
part number	CM8071504549231 +, BX8071512900KF + and BXC8071512900KF +
release price	$ 564.00 (€ 507.60, £ 456.84, ¥ 58,278.12) + and $ 574.00 (€ 516.60, £ 464.94, ¥ 59,311.42) +
release price (box)	$ 574.00 (€ 516.60, £ 464.94, ¥ 59,311.42) +
release price (tray)	$ 564.00 (€ 507.60, £ 456.84, ¥ 58,278.12) +
s-spec	SRL4J +
series	i9-12000 +
smp max ways	1 +
socket	Socket V +
tdp	125 W (125,000 mW, 0.168 hp, 0.125 kW) +
technology	CMOS +
thread count	24 +
turbo frequency	5,100 MHz (5.1 GHz, 5,100,000 kHz) +
word size	64 bit (8 octets, 16 nibbles) +

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Revision as of 09:24, 3 November 2021

Cache

Small Core

Big Core