AMD Radeon HD 6990M vs AMD Radeon R9 M365X

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 4GB VRAM Radeon R9 M365X 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 72.00GB/s)

480 additional rendering cores

AMD Radeon R9 M365X 's Advantages

Released 3 years and 10 months late

Boost Clock925MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +35%

1.602 TFLOPS

Radeon R9 M365X

1.184 TFLOPS

Radeon HD 6990M

VS

Radeon R9 M365X

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

925 MHz

900 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

14

Compute Units

10

1120

Shading Units

640

56

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

14.80 GPixel/s

40.04 GTexel/s

Texture Rate

37.00 GTexel/s

-

FP16 (half)

-

1.602 TFLOPS

FP32 (float)

1184 GFLOPS

-

FP64 (double)

74.00 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Tropo

Blackcomb XTX (216-0811030)

GPU Variant

Tropo XT

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.5 billion

212 mm²

Die Size

123 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5 (5.1)

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