AMD Radeon Pro V420 vs ATI Radeon HD 3870 Mac Edition

VS

AMD Radeon Pro V420

ATI Radeon HD 3870 Mac Edition

We compared two Desktop platform GPUs: 32GB VRAM AMD Radeon Pro V420 and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro V420 's Advantages

Boost Clock1700MHz

More VRAM (32GB vs 512GB)

Larger VRAM bandwidth (819.2GB/s vs 72.06GB/s)

3776 additional rendering cores

ATI Radeon HD 3870 Mac Edition 's Advantages

Lower TDP (106W vs 300W)

Score

Benchmark

FP32 (float)

AMD Radeon Pro V420 +2702%

13.93 TFLOPS

Radeon HD 3870 Mac Edition

0.497 TFLOPS

AMD Radeon Pro V420

VS

Radeon HD 3870 Mac Edition

Graphics Card

Unknown

Release Date

Jun 2008

Radeon Pro Vega

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

800 MHz

Base Clock

-

1700 MHz

Boost Clock

-

800 MHz

Memory Clock

1126 MHz

Memory

32GB

Memory Size

512MB

HBM2

Memory Type

GDDR4

4096bit

Memory Bus

256bit

819.2GB/s

Bandwidth

72.06GB/s

Render Config

64

Compute Units

4

-

4096

Shading Units

320

256

TMUs

16

64

ROPs

16

-

16 KB (per CU)

L1 Cache

-

4 MB

L2 Cache

256 KB

-

Theoretical Performance

108.8 GPixel/s

Pixel Rate

12.43 GPixel/s

435.2 GTexel/s

Texture Rate

12.43 GTexel/s

27.85 TFLOPS

FP16 (half)

-

13.93 TFLOPS

FP32 (float)

497.3 GFLOPS

6.963 TFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

300W

TDP

106W

700 W

Suggested PSU

300 W

6x mini-DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Vega 20

GPU Name

RV670

Vega 20 GLXT WS (215-0914026)

GPU Variant

RV670 XT (215-0708005)

GCN 5.1

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

13.23 billion

Transistors

0.666 billion

331 mm²

Die Size

192 mm²

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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