G.Skill
G.Skill F5-6400J3239G32GX2-RS5K 64GB DDR5 6400MHz Desktop Memory
★★★★★
64GB DDR5
Experience Next-Gen Performance with G.Skill RipJaws S5 DDR5 Memory The G.Skill RipJaws S5 Series offers high-performance DDR5 memory designed for the latest Intel XMP platforms. This 64GB (2 x 32GB) kit provides exceptional speed and stability, ensuring smooth multitasking and enhanced gaming ex...
$999.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.
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Overview
Experience Next-Gen Performance with G.Skill RipJaws S5 DDR5 Memory
The G.Skill RipJaws S5 Series offers high-performance DDR5 memory designed for the latest Intel XMP platforms. This 64GB (2 x 32GB) kit provides exceptional speed and stability, ensuring smooth multitasking and enhanced gaming experiences. Available in a sleek matte black finish.
Specifications:
- Brand: G.Skill
- Series: RipJaws S5
- Capacity: 64GB (2 x 32GB)
- Type: 288-Pin SDRAM DDR5
- Speed: 6400 MT/s
- CAS Latency: CL32-39-39-102
- Voltage: 1.40V
- Channel: Dual Channel
- Color: Matte Black
Key Features
G.SKILL Ripjaws S5 Series DDR5 U-DIMM Memory Kit, Model: F5-6400J3239G32GX2-RS5K
64GB total capacity kit containing 2x32GB modules, rated for up to DDR5-6400 CL32-39-39-102 at 1.40V
Non-ECC, DDR5 U-DIMM, 288-pin, for Desktop PC & Gaming
Includes JEDEC default profile, and Intel XMP 3.0 memory overclock profile
Do not mix memory kits. Memory kits are sold in matched kits that are designed to run together as a set. Mixing memory kits will result in stability issues or system failure.
For Intel Z890, Intel Z790, Intel B760 platforms. Refer to G.SKILL memory QVL or RAM Configurator tool on the G.SKILL website for more details on validated motherboard and hardware.
Usage in any manner inconsistent with manufacturer specifications, warnings, designs, or recommendations will result in lower speeds, system instability, or damage to the system or its components.
Memory kits will boot at JEDEC default SPD speed at default BIOS settings with compatible hardware.
For memory kits with XMP and/or EXPO overclock profile, enable XMP/EXPO/DOCP/A-XMP profile in BIOS to reach up to the rated potential XMP or EXPO overclock speed of the memory kit, subject to the use of compatible hardware. Enabling XMP or EXPO is an act of overclocking and requires BIOS setting adjustments.
Reaching the rated XMP or EXPO overclock speed and system stability will depend on the compatibility and capability of the motherboard and CPU used.
Specifications
Brand
G.Skill
Model
F5-6400J3239G32GX2-RS5K
Memory Type
DDR5 U-DIMM
Capacity
64GB (2x32GB)
Speed Rating
DDR5-6400
CAS Latency
CL32-39-39-102
Voltage
1.40V
Pin Count
288-pin
Error Correction
Non-ECC
Profiles
JEDEC default, Intel XMP 3.0
Platform Compatibility
Intel Z890, Z790, B760
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View on Amazon →Pros & Cons
👍 Pros
- Offers a substantial 64GB total capacity across two 32GB modules for demanding applications and gaming
- Achieves high speeds with a rated DDR5-6400 CL32-39-39-102 specification at 1.40V, enhancing system responsiveness
- Includes Intel XMP 3.0 memory overclock profile for easy performance optimization on compatible platforms
- Designed for desktop PCs and gaming systems, targeting enthusiasts and users seeking high-performance memory
- Features a non-ECC, U-DIMM form factor with 288 pins, making it suitable for standard desktop motherboards
👎 Cons
- Requires compatible Intel Z890, Z790, or B760 platforms to achieve rated speeds, limiting broader compatibility
- Mixing this memory kit with other memory kits is strongly advised against, potentially causing instability
- Achieving the rated XMP overclock speed is dependent on the motherboard and CPU compatibility and capability
- Usage inconsistent with manufacturer specifications could lead to lower speeds, instability, or system damage
- Specific latency details beyond CL32-39-39-102 are not provided, which might be a factor for some users
Frequently Asked Questions
What is the total capacity of this G.Skill DDR5 memory kit?
This memory kit has a total capacity of 64GB, comprising two 32GB modules.
What speed is this memory rated for?
This G.Skill DDR5 memory is rated for up to DDR5-6400 with timings CL32-39-39-102 at 1.40V.
Can I mix this memory kit with other memory kits I already own?
No, the manufacturer explicitly advises against mixing memory kits, as it can result in stability issues or system failure.
Which Intel platforms are compatible with this memory?
This memory kit is designed for Intel Z890, Intel Z790, and Intel B760 platforms.
Do I need to enable a special setting to reach the advertised speed?
Yes, for memory kits with XMP profiles, you need to enable the XMP/EXPO/DOCP/A-XMP profile in your BIOS to potentially reach the rated overclock speed, provided compatible hardware is used.
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