Corsair Vengeance LPX 64GB (2x32GB) DDR4 4000 CMK64GX4M2G4000C18 vs Vengeance LPX 64GB (2x32GB) DDR4 2666 RAM Comparison

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Corsair Vengeance LPX 64GB (2x32GB) DDR4 4000 CMK64GX4M2G4000C18	CORSAIR Vengeance LPX 64GB (2x32GB) DDR4 2666
Prices (Change region) Out of Stock Free shipping $464.99 - Buy now	Prices (Change region) In Stock Free shipping $112.99 In Stock $112.99 Last updated 51 minutes ago.
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Brand Corsair	Brand Corsair
Model CMK64GX4M2G4000C18	Model CMK64GX4M2A2666C16
Release Date 📅 August 2020	Release Date 📅 July 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (3 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $7.27	Price/GB $1.56
GB/$1 0.14	GB/$1 0.64
Samsung B-Die No	Samsung B-Die No
Compatible PC parts Motherboards ►	Compatible PC parts Motherboards ►
Type 288-pin DDR4 DIMM	Type 288-pin DDR4 DIMM
Speed DDR4-4000 MHz	Speed DDR4-2666 MHz
Size 64GB (2 x 32GB)	Size 64GB (2 x 32GB)
CAS Latency 18	CAS Latency 16
Timing 18-18-18-36	Timing 16-18-18-35
First Word Latency 9 ns	First Word Latency 12 ns
Voltage 1.35 V	Voltage 1.2 V
Heat Spreader Yes	Heat Spreader Yes
ECC Support No	ECC Support No
Color -	Color Black

What are the differences between Corsair Vengeance LPX 64GB (2x32GB) DDR4 4000 CMK64GX4M2G4000C18 and Vengeance LPX 64GB (2x32GB) DDR4 2666? Analyze head-to-head all specifications and features to find out the better ram.