ATI Mobility Radeon HD 3870 vs AMD Radeon R9 M375

VS

ATI Mobility Radeon HD 3870

AMD Radeon R9 M375

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 2GB VRAM Radeon R9 M375 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 28.80GB/s)

AMD Radeon R9 M375 's Advantages

Released 6 years and 11 months late

Boost Clock1015MHz

More VRAM (2GB vs 512GB)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon R9 M375 +207%

1.299 TFLOPS

Mobility Radeon HD 3870

VS

Radeon R9 M375

Graphics Card

Jun 2008

Release Date

May 2015

M8x

Generation

Gem System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1015 MHz

850 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

256bit

Memory Bus

128bit

54.40GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

640

16

TMUs

40

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

16.24 GPixel/s

10.56 GTexel/s

Texture Rate

40.60 GTexel/s

-

422.4 GFLOPS

FP32 (float)

1299 GFLOPS

84.48 GFLOPS

FP64 (double)

81.20 GFLOPS

Board Design

55W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M88

GPU Name

Tropo

-

GPU Variant

Tropo XT2

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

1.5 billion

192 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

4.1

Shader Model

6.5 (5.1)

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