AMD Radeon HD 8970M vs AMD Radeon HD 6950M

VS

AMD Radeon HD 8970M

AMD Radeon HD 6950M

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 1024MB VRAM Radeon HD 6950M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Released 2 years and 4 months late

Boost Clock900MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 115.2GB/s)

320 additional rendering cores

AMD Radeon HD 6950M 's Advantages

Lower TDP (50W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +106%

2.304 TFLOPS

Radeon HD 6950M

1.114 TFLOPS

Radeon HD 8970M

VS

Radeon HD 6950M

Graphics Card

May 2013

Release Date

Jan 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1200 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

115.2GB/s

Render Config

20

Compute Units

12

-

1280

Shading Units

960

80

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

18.56 GPixel/s

72.00 GTexel/s

Texture Rate

27.84 GTexel/s

-

2.304 TFLOPS

FP32 (float)

1114 GFLOPS

144.0 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

50W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Neptune

GPU Name

Blackcomb

Neptune XT (216-0847000)

GPU Variant

Blackcomb PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.7 billion

212 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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