Difference between GDDR1 GDDR2 GDDR3 GDDR4 GDDR5 GDDR5X GDDR6
This page compares GDDR1 vs GDDR2 vs GDDR3 vs GDDR4 vs GDDR5 vs GDDR5X vs GDDR6 and mentions difference between GDDR1, GDDR2, GDDR3, GDDR4, GDDR5, GDDR5X and GDDR6 memory types.
Introduction:
The GDDR is SDRAM type of memory also called as Graphics Double Data Rate memory.
It is used in video and graphics cards. There are various versions of GDDR.
The latest are DDR5, GDDR5X and GDDR6.
GDDR offers many benefits over DDR memory type. Some of these include high bandwidth, low power and heat dispersal requirements, higher performance, higher capacity, higher speed and more.
GDDR1 GDDR2 GDDR3 GDDR4
Following table mentions feature comparison between GDDR1, GDDR2, GDDR3, GDDR4 and GDDR5.
GDDR5
This memory type is manufactured by Samsung, Hynix and Elpida. It is widely used in many graphics cards for all the budget ranges such as GT 740, GTX 1070, RX 480 etc. It is square/rectangular in shape. It is ideal for game consoles, high performance computing in addition to use in graphics cards. The unique features of GDDR5 are data eye optimization, adaptive interface timing and data integrity.
Following are the features of GDDR5.
• Maximum capacity : 8GB per die
• Maximum speed : 8 Gbps
• Bus width : 32 bit per chip
• Power consumption : Low
GDDR5X
This memory type is manufactured by Micron. It is used in many graphics cards which include GeForce GTX 1080, GTX 1080 Ti, GTX 1060, Nvidia Titan X (Pascal) etc. It is square/rectangular in shape.
Following are the features of GDDR5X.
• Maximum capacity : 16GB per die
• Maximum speed : 10 to 14 Gbps
• Bus width : 64 bit per chip
• Density : 8 GB (JEDEC up to 16 GB)
• Perf : 10 to 12 Gbps (JEDEC 10 to 16 Gbps)
• I/O configuration : x16/x32
• Channel count : 1 channel
• Access Granularity : 64B/32B (PC mode)
• Package : FBGA190, 0.65 mm pitch, 14 x 10 mm
• VDD/VDDQ/VPP : 1.35V/1.35V/1.8V
GDDR6
It is successor to GDDR5 and GDDR5X. It is built on 10nm technology. It is manufactured by Samsung, Hynix and Micron. This memory is used for various applications such as gaming, VR (virtual Reality), AI (Artificial Intelligence), Cryptocurrency mining etc.
Following are the features of GDDR6.
• Speed : Up to 16 Gbps (or up to 18 GB/s).
• Density : 8 GB & 16 GB (JEDEC up to 32 GB), up to 32 GB per die
• Perf : 12 to 14 Gbps (JEDEC 10 to 16 Gbps)
• I/O configuration : x8/x16 (per channel)
• Channel count : 2 channel2
• Access Granularity : 64B (PC mode) /32B per channel
• Package : FBGA180, 0.75 mm pitch, 14 x 12 mm
• VDD/VDDQ/VPP : 1.35V/1.35V/1.8V
Difference between GDDR memory types
Following table mentions difference between GDDR memory types.
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