AMD Radeon HD 6990M vs AMD Radeon R9 M380 Mac Edition

VS

AMD Radeon HD 6990M

AMD Radeon R9 M380 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 2GB VRAM Radeon R9 M380 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 100.4GB/s)

352 additional rendering cores

AMD Radeon R9 M380 Mac Edition 's Advantages

Released 3 years and 10 months late

Boost Clock1021MHz

Score

Benchmark

FP32 (float)

Radeon HD 6990M +2%

1.602 TFLOPS

Radeon R9 M380 Mac Edition

1.568 TFLOPS

Radeon HD 6990M

VS

Radeon R9 M380 Mac Edition

Graphics Card

Jul 2011

Release Date

May 2015

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1021 MHz

900 MHz

Memory Clock

1568 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

100.4GB/s

Render Config

14

Compute Units

12

-

1120

Shading Units

768

56

TMUs

48

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

16.34 GPixel/s

40.04 GTexel/s

Texture Rate

49.01 GTexel/s

-

1.602 TFLOPS

FP32 (float)

1.568 TFLOPS

-

FP64 (double)

98.02 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

Strato

Blackcomb XTX (216-0811030)

GPU Variant

Strato PRO

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.08 billion

212 mm²

Die Size

160 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5

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