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

VS

AMD Radeon HD 6990M

AMD Radeon RX Vega 56 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M 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 '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 2GB)

Larger VRAM bandwidth (409.6GB/s vs 115.2GB/s)

2464 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M

1.602 TFLOPS

Radeon RX Vega 56 Mobile +482%

9.326 TFLOPS

Radeon HD 6990M

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

900 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

256bit

Memory Bus

2048bit

115.2GB/s

Bandwidth

409.6GB/s

Render Config

14

Compute Units

56

-

1120

Shading Units

3584

56

TMUs

224

32

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

4 MB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

83.26 GPixel/s

40.04 GTexel/s

Texture Rate

291.4 GTexel/s

-

FP16 (half)

18.65 TFLOPS

1.602 TFLOPS

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

None

Power Connectors

None

Graphics Processor

Blackcomb

GPU Name

Vega 10

Blackcomb XTX (216-0811030)

GPU Variant

Vega 10 XL (215-0894216)

TeraScale 2

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.7 billion

Transistors

12.5 billion

212 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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