ATI Mobility Radeon HD 3850 X2 vs AMD Radeon HD 6970M

VS

ATI Mobility Radeon HD 3850 X2

AMD Radeon HD 6970M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3850 X2 and 1024MB VRAM Radeon HD 6970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3850 X2 's Advantages

Lower TDP (70W vs 75W)

AMD Radeon HD 6970M 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 48.00GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3850 X2

0.371 TFLOPS

Radeon HD 6970M +252%

1.306 TFLOPS

Mobility Radeon HD 3850 X2

VS

Radeon HD 6970M

Graphics Card

Jun 2008

Release Date

Jan 2011

M8x

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

750 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

256bit

48.00GB/s

Bandwidth

115.2GB/s

Render Config

4

Compute Units

12

-

320

Shading Units

960

16

TMUs

48

16

ROPs

32

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

9.280 GPixel/s

Pixel Rate

21.76 GPixel/s

9.280 GTexel/s

Texture Rate

32.64 GTexel/s

-

371.2 GFLOPS

FP32 (float)

1306 GFLOPS

74.24 GFLOPS

FP64 (double)

-

Board Design

70W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M88

GPU Name

Blackcomb

-

GPU Variant

Blackcomb XT (216-0811000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

1.7 billion

192 mm²

Die Size

212 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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