Intel® Core™ i7-6950X Extreme Edition

The Intel Core i7-6950X Extreme Edition is a desktop processor with 10 cores and 20 threads, built on the Broadwell architecture. It launched in Apr 2016. Clocks run from 3.0 GHz base to 3.5 GHz boost. A 25-MB L3 cache backs the cores (2.8 MB per core). It addresses DDR4 memory up to 128 GB across 4 channels. The chip drops into the FCLGA2011 socket and exposes PCIe 3.0 (40 lanes). Rated TDP is 140 W. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Core i7-6950X Extreme Edition scores 2,328 in single-core performance and 17,525 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,387 for overall performance, 14,650 for productivity performance, 13,829 for creator performance, 18,511 for engineering performance and 11,365 for gaming performance. Its multi-core throughput works out to 1,753 per core, 876 per thread and 125 per watt. Its computed efficiency index is 540. Its performance index is 79, so its overall performance is 21% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Core i7-6950X Extreme Edition scores 63,952 in integer math, 41,607 in floating-point math, 279,328 in compression, 5,121 in cryptography, 1,209 in physics simulation, 17,580 in vector SIMD, 79 in the prime sieve and 35,013 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 9% above in integer math, 9% below in floating-point math, 22% above in compression, 55% below in cryptography, 11% above in physics simulation, 13% above in vector SIMD, 18% above in the prime sieve and 55% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Core i7-6950X Extreme Edition has 10 physical cores and runs 20 logical threads. It runs 2 threads per core. It runs at a base clock of 3.00 GHz and boosts up to 3.50 GHz.

The Intel Core i7-6950X Extreme Edition is a desktop processor, belongs to the Intel Core i7 family, uses the Broadwell architecture, carries the codename Broadwell E and is manufactured on a 14 nm process. It launched in Apr 2016.

The Intel Core i7-6950X Extreme Edition has 640 KB of L1 cache, 2.50 MB of L2 cache and 25 MB of L3 cache. That adds up to about 28.1 MB of cache, or 2.81 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i7-6950X Extreme Edition has a 3-level cache hierarchy: L1 at 640 KB, L2 at 2.5 MB and L3 at 25 MB. L3 is the largest level and makes up about 89% of the cache listed here.

The Intel Core i7-6950X Extreme Edition supports DDR4 memory, addresses up to 128 GB of memory and uses 4 memory channels. It does not support DDR5 and LPDDR memory.

The Intel Core i7-6950X Extreme Edition does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Core i7-6950X Extreme Edition uses the FCLGA2011 socket, supports PCI Express 3.0 and provides up to 40 PCIe lanes.

The Intel Core i7-6950X Extreme Edition has a rated TDP of 140 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Core i7-6950X Extreme Edition is manufactured by Intel. It launched at a price of $1,723.

The Intel Core i7-6950X Extreme Edition is also identified by the model number i7-6950X.

After an audit, 1 value was corrected on the Intel Core i7-6950X Extreme Edition record. Each change is listed with its old value, new value, rule and sources.

• Integrated graphics: Yes → No. Rule: Cleanup hedt no igpu. LGA2011/LGA2011-3/LGA2066 Core desktop part: Intel ARK lists no Processor Graphics; value came from architecture inference.

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 56% of the specifications it tracks for the Intel Core i7-6950X Extreme Edition. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, ECC Memory and Max Memory Speed. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCLGA2011 socket as the Intel Core i7-6950X Extreme Edition and have the closest multi-core scores in the Feex database include Intel Xeon E5-2683 v4, Intel Xeon E5-4669 v3, Intel Xeon E5-2687W v4, Intel Xeon E5-2680 v4 and Intel Xeon E5-2697 v3.