AMD Radeon HD 8670A vs AMD Radeon Pro Vega 20

VS

AMD Radeon HD 8670A

AMD Radeon Pro Vega 20

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 4GB VRAM Radeon Pro Vega 20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670A 's Advantages

Lower TDP (45W vs 100W)

AMD Radeon Pro Vega 20 's Advantages

Released 5 years and 9 months late

Boost Clock1283MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (189.4GB/s vs 16.00GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670A

0.461 TFLOPS

Radeon Pro Vega 20 +612%

3.284 TFLOPS

Radeon HD 8670A

VS

Radeon Pro Vega 20

Graphics Card

Feb 2013

Release Date

Nov 2018

All-In-One

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

815 MHz

-

Boost Clock

1283 MHz

1000 MHz

Memory Clock

740 MHz

Memory

1024MB

Memory Size

4GB

DDR3

Memory Type

HBM2

64bit

Memory Bus

1024bit

16.00GB/s

Bandwidth

189.4GB/s

Render Config

6

Compute Units

20

-

384

Shading Units

1280

24

TMUs

80

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

41.06 GPixel/s

14.40 GTexel/s

Texture Rate

102.6 GTexel/s

-

FP16 (half)

6.569 TFLOPS

460.8 GFLOPS

FP32 (float)

3.284 TFLOPS

28.80 GFLOPS

FP64 (double)

205.3 GFLOPS

Board Design

45W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

Vega 12

Mars XT

GPU Variant

Vega 12 XTA

GCN 1.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.95 billion

Transistors

Unknown

77 mm²

Die Size

Unknown

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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