AMD Radeon Pro Vega 20 vs AMD Radeon HD 8790M

VS

AMD Radeon Pro Vega 20

AMD Radeon HD 8790M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 2GB VRAM Radeon HD 8790M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Released 5 years and 7 months late

Boost Clock has increased by 43% (1283MHz vs 900MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (189.4GB/s vs 64.00GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +375%

3.284 TFLOPS

Radeon HD 8790M

0.691 TFLOPS

Radeon Pro Vega 20

VS

Radeon HD 8790M

Graphics Card

Nov 2018

Release Date

Apr 2013

Radeon Pro Mac

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

815 MHz

Base Clock

850 MHz

1283 MHz

Boost Clock

900 MHz

740 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

HBM2

Memory Type

GDDR5

1024bit

Memory Bus

128bit

189.4GB/s

Bandwidth

64.00GB/s

Render Config

20

Compute Units

6

-

1280

Shading Units

384

80

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

41.06 GPixel/s

Pixel Rate

7.200 GPixel/s

102.6 GTexel/s

Texture Rate

21.60 GTexel/s

6.569 TFLOPS

FP16 (half)

-

3.284 TFLOPS

FP32 (float)

691.2 GFLOPS

205.3 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Vega 12

GPU Name

Mars

Vega 12 XTA

GPU Variant

Mars M2 XTX (216-0842036)

GCN 5.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

Unknown

Transistors

0.95 billion

Unknown

Die Size

77 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.3

Shader Model

6.5 (5.1)

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