ATI Mobility Radeon HD 3870 vs AMD Radeon HD 8950M

VS

ATI Mobility Radeon HD 3870

AMD Radeon HD 8950M

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

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 100W)

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

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon HD 8950M +291%

1.651 TFLOPS

Mobility Radeon HD 3870

VS

Radeon HD 8950M

Graphics Card

Jun 2008

Release Date

May 2013

M8x

Generation

Solar System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

850 MHz

Memory Clock

1375 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

54.40GB/s

Bandwidth

88.00GB/s

Render Config

4

Compute Units

12

-

320

Shading Units

768

16

TMUs

48

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

17.20 GPixel/s

10.56 GTexel/s

Texture Rate

51.60 GTexel/s

-

422.4 GFLOPS

FP32 (float)

1.651 TFLOPS

84.48 GFLOPS

FP64 (double)

103.2 GFLOPS

Board Design

55W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M88

GPU Name

Saturn

-

GPU Variant

Saturn XT

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

2.08 billion

192 mm²

Die Size

160 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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