AMD Radeon HD 6990M Rebrand vs AMD Radeon RX Vega M GH

VS

AMD Radeon HD 6990M Rebrand

AMD Radeon RX Vega M GH

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 4GB VRAM Radeon RX Vega M GH to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX Vega M GH 's Advantages

Released 6 years and 7 months late

Boost Clock1190MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (204.8GB/s vs 70.40GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon RX Vega M GH +185%

3.656 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon RX Vega M GH

Graphics Card

Jul 2011

Release Date

Feb 2018

Vancouver

Generation

Vega

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

IGP

Clock Speeds

-

Base Clock

1063 MHz

-

Boost Clock

1190 MHz

1100 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

1024bit

70.40GB/s

Bandwidth

204.8GB/s

Render Config

14

Compute Units

24

-

800

Shading Units

1536

40

TMUs

96

16

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

76.16 GPixel/s

32.00 GTexel/s

Texture Rate

114.2 GTexel/s

-

FP16 (half)

3.656 TFLOPS

1280 GFLOPS

FP32 (float)

3.656 TFLOPS

-

FP64 (double)

228.5 GFLOPS

Board Design

100W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

Polaris 22

Broadway XTX

GPU Variant

VegaM XT (C7398773)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.04 billion

Transistors

5 billion

166 mm²

Die Size

208 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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