AMD Radeon Pro V420 vs AMD Radeon HD 7870 XT

VS

AMD Radeon Pro V420

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 32GB VRAM AMD Radeon Pro V420 and 2GB VRAM Radeon HD 7870 XT 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 74% (1700MHz vs 975MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (819.2GB/s vs 192.0GB/s)

2560 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 300W)

Score

Benchmark

FP32 (float)

AMD Radeon Pro V420 +365%

13.93 TFLOPS

Radeon HD 7870 XT

2.995 TFLOPS

AMD Radeon Pro V420

VS

Radeon HD 7870 XT

Graphics Card

Unknown

Release Date

Nov 2012

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

925 MHz

1700 MHz

Boost Clock

975 MHz

800 MHz

Memory Clock

1500 MHz

Memory

32GB

Memory Size

2GB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

256bit

819.2GB/s

Bandwidth

192.0GB/s

Render Config

64

Compute Units

24

-

4096

Shading Units

1536

256

TMUs

96

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

108.8 GPixel/s

Pixel Rate

31.20 GPixel/s

435.2 GTexel/s

Texture Rate

93.60 GTexel/s

27.85 TFLOPS

FP16 (half)

-

13.93 TFLOPS

FP32 (float)

2.995 TFLOPS

6.963 TFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

300W

TDP

185W

700 W

Suggested PSU

450 W

6x mini-DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Vega 20

GPU Name

Tahiti

Vega 20 GLXT WS (215-0914026)

GPU Variant

Tahiti LE (215-0821122)

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

352 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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