AMD Radeon HD 8950M vs AMD Radeon HD 6670A

VS

AMD Radeon HD 8950M

AMD Radeon HD 6670A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8950M and 1024MB VRAM Radeon HD 6670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950M 's Advantages

Released 2 years and 1 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (88.00GB/s vs 64.00GB/s)

288 additional rendering cores

AMD Radeon HD 6670A 's Advantages

Lower TDP (45W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8950M +186%

1.651 TFLOPS

Radeon HD 6670A

0.576 TFLOPS

Radeon HD 8950M

VS

Radeon HD 6670A

Graphics Card

May 2013

Release Date

Apr 2011

Solar System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1375 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

88.00GB/s

Bandwidth

64.00GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

480

48

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.20 GPixel/s

Pixel Rate

4.800 GPixel/s

51.60 GTexel/s

Texture Rate

14.40 GTexel/s

-

1.651 TFLOPS

FP32 (float)

576.0 GFLOPS

103.2 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Saturn

GPU Name

Turks

Saturn XT

GPU Variant

Turks XT (215-0803000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.716 billion

160 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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