AMD Radeon RX 480 Mobile vs AMD Radeon HD 6990M Rebrand

VS

AMD Radeon RX 480 Mobile AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 480 Mobile and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 480 Mobile 's Advantages

Released 5 years and 1 months late

Boost Clock1077MHz

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (256.0GB/s vs 70.40GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 480 Mobile +287%

4.963 TFLOPS

Radeon HD 6990M Rebrand

1.28 TFLOPS

Radeon RX 480 Mobile

VS

Radeon HD 6990M Rebrand

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

1000 MHz

Base Clock

-

1077 MHz

Boost Clock

-

2000 MHz

Memory Clock

1100 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

70.40GB/s

Render Config

-

SM Count

-

36

Compute Units

14

2304

Shading Units

800

144

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

34.46 GPixel/s

Pixel Rate

12.80 GPixel/s

155.1 GTexel/s

Texture Rate

32.00 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

1280 GFLOPS

310.2 GFLOPS

FP64 (double)

-

Graphics Processor

Ellesmere

GPU Name

Broadway

Ellesmere XT

GPU Variant

Broadway XTX

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

1.04 billion

232 mm²

Die Size

166 mm²

Board Design

100W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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