AMD to release 7nm Mega II Graphics Cards for Mac Pro

ByMia Wang 2019-06-06 964

With the Radeon Pro Vega II and the Radeon Pro Vega II Duo, AMD announces two 7nm-based Vega 20 GPUs for Apple's upcoming Mac Pro series - up to 28.3 FP32 TFLOPS and 64 GByte HBM2.

AMD announces high-performance Radeon GPUs. Radeon Pro Vega II and Radeon Pro Vega II Duo are designed to power compute-intensive content creation applications and become part of Apple's new Mac Pro series.

Like the Radeon RX 5000 navigation charts announced for July, the professional Vega II GPUs will also use TSMC's 7nm production. The process has already been tested with the AMD Radeon VII, which is also part of Vega.

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The Radeon Pro Vega II (single GPU) connects up to 32 GB of HBM2 memory with a bandwidth of 1 TB/s via a 4096-bit memory interface and has 4096 stream processors - 64 compute units (CU) each with 64 stream processors.

With a maximum clock speed of 1.7 GHz, the Pro Vega II achieves a computing power of 14.2 FP32 TFLOPS (single precision) or 28.4 FP16 TFLOPS (half precision) - a Radeon RX 580 brings it up to 6.2 FP32 TFLOPS.

Simple and half precision describe how exactly a floating point operation (FLOP) can be performed. For FP32 this is 4 bytes (32 bits), i.e. 32 characters, for FP16 only 16 characters.

There is also double accuracy, FP64 (double precision), where the character length increases to 64 (64 bit) - but FP64 is only relevant for workstation users, it does not matter for gamers.

128 compute units

8192 Stream processors

1.7 GHz maximum clock rate

up to 28.3 FP32 TFLOPS

up to 64 GByte HBM2

1 TB/s bandwidth

4096-bit memory interface

Thunderbolt 3 (up to 40Gb/s)

The two Vega-II chips are equipped with an Infinity Fabric Link, which can transmit 84GB/s, in order to optimally match them to each other. According to AMD, the scalable interconnect technology can transfer data between GPUs up to five times faster than PCI express 3.0.

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