All Core i7 Models

First-Generation Core i7 Desktop Models

In the table below, we listed all Core i7-8xx and Core i7-9xx CPU models. These are desktop models based on the Nehalem microarchitecture. They are also called first-generation Core i7 processors.

The 8xx models are based on socket LGA1156 and support 1,066 MHz and 1,333 MHz DDR3 memories under dual-channel architecture. These models have an integrated PCI Express 2.0 controller supporting one x16 datapath or two x8 datapaths. On these CPUs, communication with the motherboard chipset is achieved through a DMI bus (1 GB/s per direction, listed as 2.5 GT/s by Intel).

The 9xx models are based on socket LGA1366 and support 1,066 MHz memories under triple-channel architecture. These models don’t have an integrated PCI Express controller and they talk to the motherboard chipset using a QPI bus working at 2.4 GHz (4.8 GB/s) on the “regular” models or at 3.2 GHz (6.4 GB/s) on the “Extreme” models, which are listed in a separate table below.

The first-generation Core i7 desktop models are quad-core or six-core CPUs using the Hyper-Threading technology. This means that the operating system will recognize all these CPUs as having eight or 12 cores. However, only half the cores are “real;” the other half is simulated.

sSpec Model Clock Turbo Boost Cores HT Video L3 Cache Tech. TDP (W) Max. Temp. (°C)* Socket
SLBYU 980 3.33 GHz 3.60 GHz 6 Yes No 12 MiB 32 nm 130 68.8 LGA1366
SLBVF 970 3.20 GHz 3.46 GHz 6 Yes No 12 MiB 32 nm 130 67.9 LGA1366
SLBEU 960 3.20 GHz 3.46 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBEN 950 3.06 GHz 3.32 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBCK 940 2.93 GHz 3.20 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBKP 930 2.80 GHz 3.06 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBEJ 920 2.66 GHz 2.93 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBCH 920 2.66 GHz 2.93 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBPS 880 3.06 GHz 3.74 GHz 4 Yes No 8 MiB 45 nm 95 72.7 LGA1156
SLBS2 875K 2.93 GHz 3.60 GHz 4 Yes No 8 MiB 45 nm 95 72.7 LGA1156
SLBQ7 870S 2.66 GHz 3.60 GHz 4 Yes No 8 MiB 45 nm 82 NA LGA1156
SLBJG 870 2.93 GHz 3.60 GHz 4 Yes No 8 MiB 45 nm 95 72.7 LGA1156
SLBLG 860s 2.53 GHz 3.46 GHz 4 Yes No 8 MiB 45 nm 82 76.7 LGA1156
SLBJJ 860 2.80 GHz 3.46 GHz 4 Yes No 8 MiB 45 nm 95 72.7 LGA1156

In the table below, you will find all first-generation Core i7 Extreme models for desktops. These models have the QPI bus running at a higher clock rate (3.2 GHz, 6.4 GB/s) and come with their clock multiplier and Turbo Boost options unlocked, providing additional overclocking options.

sSpec Model Internal Clock Turbo Boost Cores HT Video L3 Cache Tech. TDP (W) Max. Temp. (°C)* Socket
SLBVZ 990X 3.46 GHz 3.73 GHz 6 Yes No 12 MiB 32 nm 130 67.9 LGA1366
SLBUZ 980X 3.33 GHz 3.60 GHz 6 Yes No 12 MiB 32 nm 130 67.9 LGA1366
SLBEQ 975 3.33 GHz 3.60 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366
SLBCJ 965 3.20 GHz 3.46 GHz 4 Yes No 8 MiB 45 nm 130 67.9 LGA1366

TDP stands for Thermal Design Power and indicates the CPU maximum thermal dissipation, i.e., the CPU cooler must be able to dissipate at least this amount of heat.

* The temperatures listed above are Tcase, which is the maximum external temperature of the CPU. On some other models, the manufacturer lists Tjunction, which is the maximum internal temperature of the CPU. The two are not comparable.

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Author: Rafael Coelho

Rafael Otto Coelho is a physicist with a master's degree in Education, and is a college professor in Brazil.

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