AMD Radeon Pro V420: specs and benchmarks

Summary

This is a GCN 5.1 architecture desktop card based on 7 nm manufacturing process and primarily aimed at designers. 32 GB of HBM2 memory clocked at 0.8 GHz are supplied, and together with 4096 Bit memory interface this creates a bandwidth of 819.2 GB/s.

Compatibility-wise, this is a dual-slot graphics card attached via PCIe 4.0 x16 interface. Its manufacturer default version has a length of 267 mm. One 6-pin and one 8-pin connectors are required, and power consumption is at 300 Watt.

Primary details

Some basic facts about Radeon Pro V420: architecture, market segment, release date etc.

Place in the ranking	not rated
Place by popularity	not in top-100
Architecture	GCN 5.1 (2018−2022)
GPU code name	Vega 20
Market segment	Workstation
Release date	no data

Detailed specifications

Radeon Pro V420's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon Pro V420's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores	4096	of 21760 (GeForce RTX 5090)
Core clock speed	800 MHz	of 2670 MHz (Arc B580)
Boost clock speed	1700 MHz	of 3599 MHz (Radeon RX 7990 XTX)
Number of transistors	13,230 million	of 208,000 million (B200 SXM 192 GB)
Manufacturing process technology	7 nm	of 3 nm (Arc Graphics 140V)
Power consumption (TDP)	300 Watt	of 2400 Watt (Data Center GPU Max Subsystem)
Texture fill rate	435.2	of 2,554 (Radeon Instinct MI300X)
Floating-point processing power	13.93 TFLOPS	of 109.7 (GeForce RTX 5090)
ROPs	64	of 192 (Radeon RX 7900 XTX)
TMUs	256	of 1280 (Data Center GPU Max NEXT)

Form factor & compatibility

This section provides details about the physical dimensions of Radeon Pro V420 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

Interface	PCIe 4.0 x16
Length	267 mm
Width	2-slot
Supplementary power connectors	1x 6-pin + 1x 8-pin

VRAM capacity and type

Parameters of memory installed on Radeon Pro V420: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory type	HBM2
Maximum RAM amount	32 GB	of 294912 (Radeon Instinct MI325X)
Memory bus width	4096 Bit	of 8192 Bit (Radeon Instinct MI250X)
Memory clock speed	800 MHz	of 20000 (RTX 5000 Ada Generation Mobile)
Memory bandwidth	819.2 GB/s	of 5,171 GB/s (Radeon Instinct MI300X)

Connectivity and outputs

Types and number of video connectors present on Radeon Pro V420. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors

6x mini-DisplayPort 1.4a

API compatibility

APIs supported by Radeon Pro V420, sometimes including their particular versions.

DirectX	12 (12_1)
Shader Model	6.7
OpenGL	4.6
OpenCL	2.1
Vulkan	1.3

Benchmark performance

Synthetic benchmark performance of Radeon Pro V420. The combined score is measured on a 0-100 point scale.

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