AMD Radeon HD 6970M vs AMD Radeon HD 6870M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 1024MB VRAM Radeon HD 6870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)

160 additional rendering cores

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M +20%

1.306 TFLOPS

Radeon HD 6870M

1.08 TFLOPS

Radeon HD 6970M

VS

Radeon HD 6870M

Graphics Card

Jan 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

12

Compute Units

10

960

Shading Units

800

48

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

10.80 GPixel/s

32.64 GTexel/s

Texture Rate

27.00 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

1080 GFLOPS

-

FP64 (double)

-

Graphics Processor

Blackcomb

GPU Name

Granville

Blackcomb XT (216-0811000)

GPU Variant

Granville XT (216-0769024)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.04 billion

212 mm²

Die Size

166 mm²

Board Design

75W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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