AMD Radeon HD 6970M vs AMD Radeon HD 8970M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 4GB VRAM Radeon HD 8970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M 's Advantages

Lower TDP (75W vs 100W)

AMD Radeon HD 8970M 's Advantages

Released 2 years and 4 months late

Boost Clock900MHz

More VRAM (4GB vs 1GB)

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

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970M

1.306 TFLOPS

Radeon HD 8970M +76%

2.304 TFLOPS

Radeon HD 6970M

VS

Radeon HD 8970M

Graphics Card

Jan 2011

Release Date

May 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

12

Compute Units

20

960

Shading Units

1280

48

TMUs

80

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

28.80 GPixel/s

32.64 GTexel/s

Texture Rate

72.00 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

2.304 TFLOPS

-

FP64 (double)

144.0 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Neptune

Blackcomb XT (216-0811000)

GPU Variant

Neptune XT (216-0847000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.8 billion

212 mm²

Die Size

212 mm²

Board Design

75W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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