AMD Radeon Pro Vega 20 vs AMD Radeon HD 6490M

VS

AMD Radeon Pro Vega 20 AMD Radeon HD 6490M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 512MB VRAM Radeon HD 6490M 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 7 years and 10 months late

Boost Clock1283MHz

Larger VRAM bandwidth (189.4GB/s vs 25.60GB/s)

1120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +1182%

3.284 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

Radeon Pro Vega 20

VS

Radeon HD 6490M

Graphics Card

Nov 2018

Release Date

Jan 2011

Radeon Pro Mac

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

815 MHz

Base Clock

-

1283 MHz

Boost Clock

-

740 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

HBM2

Memory Type

GDDR5

1024bit

Memory Bus

64bit

189.4GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

20

Compute Units

2

1280

Shading Units

160

80

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

Theoretical Performance

41.06 GPixel/s

Pixel Rate

3.200 GPixel/s

102.6 GTexel/s

Texture Rate

6.400 GTexel/s

6.569 TFLOPS

FP16 (half)

-

3.284 TFLOPS

FP32 (float)

256.0 GFLOPS

205.3 GFLOPS

FP64 (double)

-

Graphics Processor

Vega 12

GPU Name

Seymour

Vega 12 XTA

GPU Variant

Seymour XTX S3 (216-0809024)

GCN 5.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

Unknown

Transistors

0.37 billion

Unknown

Die Size

67 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

5.0

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