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Video random-access memory (VRAM) is dedicated computer memory used to store the pixels and other graphics data as a framebuffer to be rendered on a computer monitor. [1] It often uses a different technology than other computer memory, in order to be read quickly for display on a screen.
AMD claims that RDNA 2's 128 MB of on-die Infinity Cache "dramatically reduces latency and power consumption". [16] The GPU having access to a large L2 or L3 cache allows it to more quickly access necessary data compared to accessing VRAM or system RAM.
ATI Stream: 2007 Radeon HD 2900 XT RV670: 55 nm ... VRAM 32 Mach 32 1992 ISA, EISA, VLB, PCI, MCA ... (128 MB) 350 (256 MB) 3040 3040 3040 380 128 256
Dual-ported video RAM (VRAM) is a dual-ported RAM variant of dynamic RAM (DRAM), which was once commonly used to store the Framebuffer in Graphics card, . Dual-ported RAM allows the CPU to read and write data to memory as if it were a conventional DRAM chip, while adding a second port that reads out data.
The L3 Infinity Cache has been lowered in capacity from 128 MB to 96 MB and latency has increased as it is physically present on the MCDs rather than being closer to the WGPs within the GCD. [20] The Infinity Cache capacity was decreased due to RDNA 3 having wider a memory interface up to 384-bit whereas RDNA 2 used memory interfaces up to 256-bit.
Streaming multiprocessors 128 84 60 48 30 20 16 12 CUDA cores: 12288 10752 7680 6144 3840 2560 2048 1536 Texture mapping units: 512 336 240 192 120 80 64 48 Render output units: 192 112 96 96 48 32 32 16 Tensor cores: 512 336 240 192 120 80 64 48 RT cores: N/A 84 60 48 30 20 8 12 L1 cache: 24 MB 10.5 MB 7.5 MB 6 MB 3 MB 2.5 MB 3 MB 1.5 MB 192 KB
A frame buffer may be designed with enough memory to store two frames worth of video data. In a technique known generally as double buffering or more specifically as page flipping, the framebuffer uses half of its memory to display the current frame. While that memory is being displayed, the other half of memory is filled with data for the next ...
128 80 32 240 ROPs: 32 24 16 48 Streaming Multiprocessors 8 5 2 15 GPCs: 4 3 1 5 Cache L1 128 KB: 80 KB: 32 KB: 240 KB: L2 512 KB: 512 KB: 256 KB: 1.5 MB: Memory interface 256-bit 192-bit 192-bit 384-bit Die size 294 mm 2: 221 mm 2: 118 mm 2: 561 mm 2: Transistor count 3.54 bn. 2.54 bn. 1.27 bn. 7.08 bn. Transistor density 12.0 MTr/mm 2: 11.5 ...