AMD Radeon Pro V420 vs AMD Radeon HD 7990

VS

AMD Radeon Pro V420

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 32GB VRAM AMD Radeon Pro V420 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro V420 's Advantages

Boost Clock has increased by 70% (1700MHz vs 1000MHz)

More VRAM (32GB vs 3GB)

Larger VRAM bandwidth (819.2GB/s vs 288.0GB/s)

2048 additional rendering cores

Lower TDP (300W vs 375W)

Score

Benchmark

FP32 (float)

AMD Radeon Pro V420 +240%

13.93 TFLOPS

Radeon HD 7990

4.096 TFLOPS

AMD Radeon Pro V420

VS

Radeon HD 7990

Graphics Card

Unknown

Release Date

Apr 2013

Radeon Pro Vega

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

800 MHz

Base Clock

950 MHz

1700 MHz

Boost Clock

1000 MHz

800 MHz

Memory Clock

1500 MHz

Memory

32GB

Memory Size

3GB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

384bit

819.2GB/s

Bandwidth

288.0GB/s

Render Config

64

Compute Units

32

-

4096

Shading Units

2048

256

TMUs

128

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

-

Theoretical Performance

108.8 GPixel/s

Pixel Rate

32.00 GPixel/s

435.2 GTexel/s

Texture Rate

128.0 GTexel/s

27.85 TFLOPS

FP16 (half)

-

13.93 TFLOPS

FP32 (float)

4.096 TFLOPS

6.963 TFLOPS

FP64 (double)

1024 GFLOPS

Board Design

300W

TDP

375W

700 W

Suggested PSU

750 W

6x mini-DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Vega 20

GPU Name

Malta

Vega 20 GLXT WS (215-0914026)

GPU Variant

Malta XT (215-0849026)

GCN 5.1

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

13.23 billion

Transistors

4.313 billion

331 mm²

Die Size

365 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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