AMD Radeon HD 8950M vs ATI Mobility Radeon HD 3870

VS

AMD Radeon HD 8950M

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8950M and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950M 's Advantages

Released 4 years and 11 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (88.00GB/s vs 54.40GB/s)

448 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8950M +291%

1.651 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon HD 8950M

VS

Mobility Radeon HD 3870

Graphics Card

May 2013

Release Date

Jun 2008

Solar System

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

88.00GB/s

Bandwidth

54.40GB/s

Render Config

12

Compute Units

4

-

768

Shading Units

320

48

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.20 GPixel/s

Pixel Rate

10.56 GPixel/s

51.60 GTexel/s

Texture Rate

10.56 GTexel/s

-

1.651 TFLOPS

FP32 (float)

422.4 GFLOPS

103.2 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

100W

TDP

55W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Saturn

GPU Name

M88

Saturn XT

GPU Variant

-

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.666 billion

160 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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