GDDR7
Also called: GDDR6X
The graphics memory generation used on recent GPUs such as the GeForce RTX 50. It succeeds GDDR6X with much higher bandwidth.
GDDR7 is the seventh generation of GDDR memory, short for Graphics Double Data Rate, the type of memory soldered around the graphics processor on consumer and professional cards. It is used in particular on NVIDIA's GeForce RTX 50 series, based on the Blackwell architecture. It succeeds GDDR6X, used on high-end RTX 30 and RTX 40 cards, and the more widespread GDDR6.
Each memory chip communicates with the GPU over a bus. GDDR7 adopts a new signal encoding, called PAM3, and higher frequencies, which gives it a much higher per-pin data rate than GDDR6X, with better energy efficiency. A card's total bandwidth depends on both this speed and the bus width, expressed in bits: 128, 256 or 512 bits depending on the model.
For artificial intelligence, memory speed directly affects text generation: for each token, the GPU rereads a large part of the model in memory. At equal capacity, a GDDR7 card therefore generally responds faster. On a product page, look at the capacity, memory type, bus width and stated bandwidth together. For the largest models, data center GPUs use HBM instead.
We can help you compare the cards in our AI GPU collection by their memory.