AMD Radeon HD 8550M vs AMD Radeon HD 6990M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8550M 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 HD 8550M 's Advantages

Released 3 years late

Boost Clock850MHz

AMD Radeon HD 6990M 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (115.2GB/s vs 14.40GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8550M

0.544 TFLOPS

Radeon HD 6990M +194%

1.602 TFLOPS

Radeon HD 8550M

VS

Radeon HD 6990M

Graphics Card

Jul 2014

Release Date

Jul 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

650 MHz

Base Clock

-

850 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

5

Compute Units

14

320

Shading Units

1120

20

TMUs

56

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

Theoretical Performance

6.800 GPixel/s

Pixel Rate

22.88 GPixel/s

17.00 GTexel/s

Texture Rate

40.04 GTexel/s

-

FP16 (half)

-

544.0 GFLOPS

FP32 (float)

1.602 TFLOPS

34.00 GFLOPS

FP64 (double)

-

Graphics Processor

Sun

GPU Name

Blackcomb

Sun S3 LE (216-0841036)

GPU Variant

Blackcomb XTX (216-0811030)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

1.7 billion

56 mm²

Die Size

212 mm²

Board Design

Unknown

TDP

100W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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