AMD Radeon RX 470 Mobile vs AMD Radeon HD 6990M

VS

AMD Radeon RX 470 Mobile AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 470 Mobile and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470 Mobile 's Advantages

Released 5 years and 1 months late

Boost Clock1074MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 115.2GB/s)

928 additional rendering cores

Lower TDP (85W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 470 Mobile +174%

4.399 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

Radeon RX 470 Mobile

VS

Radeon HD 6990M

Graphics Card

Aug 2016

Release Date

Jul 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

926 MHz

Base Clock

-

1074 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

224.0GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

32

Compute Units

14

2048

Shading Units

1120

128

TMUs

56

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

34.37 GPixel/s

Pixel Rate

22.88 GPixel/s

137.5 GTexel/s

Texture Rate

40.04 GTexel/s

4.399 TFLOPS

FP16 (half)

-

4.399 TFLOPS

FP32 (float)

1.602 TFLOPS

274.9 GFLOPS

FP64 (double)

-

Graphics Processor

Ellesmere

GPU Name

Blackcomb

Ellesmere PRO

GPU Variant

Blackcomb XTX (216-0811030)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

1.7 billion

232 mm²

Die Size

212 mm²

Board Design

85W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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