AMD Radeon HD 6990M Rebrand vs AMD Radeon RX Vega 56 Mobile

VS

AMD Radeon HD 6990M Rebrand

AMD Radeon RX Vega 56 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 8GB VRAM Radeon RX Vega 56 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

Lower TDP (100W vs 120W)

AMD Radeon RX Vega 56 Mobile 's Advantages

Released 6 years and 11 months late

Boost Clock1301MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (409.6GB/s vs 70.40GB/s)

2784 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon RX Vega 56 Mobile +628%

9.326 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon RX Vega 56 Mobile

Graphics Card

Jul 2011

Release Date

Jun 2018

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1138 MHz

-

Boost Clock

1301 MHz

1100 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

2048bit

70.40GB/s

Bandwidth

409.6GB/s

Render Config

14

Compute Units

56

-

800

Shading Units

3584

40

TMUs

224

16

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

83.26 GPixel/s

32.00 GTexel/s

Texture Rate

291.4 GTexel/s

-

FP16 (half)

18.65 TFLOPS

1280 GFLOPS

FP32 (float)

9.326 TFLOPS

-

FP64 (double)

582.8 GFLOPS

Board Design

100W

TDP

120W

-

No outputs

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

-

Power Connectors

None

Graphics Processor

Broadway

GPU Name

Vega 10

Broadway XTX

GPU Variant

Vega 10 XL (215-0894216)

TeraScale 2

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.04 billion

Transistors

12.5 billion

166 mm²

Die Size

495 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

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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