AMD Radeon HD 8690M vs ATI Mobility Radeon HD 3870

VS

AMD Radeon HD 8690M

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M 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 8690M 's Advantages

Released 4 years and 9 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 32.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8690M +47%

0.624 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon HD 8690M

VS

Mobility Radeon HD 3870

Graphics Card

Mar 2013

Release Date

Jun 2008

Solar System

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1000 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

54.40GB/s

Render Config

5

Compute Units

4

-

320

Shading Units

320

20

TMUs

16

8

ROPs

16

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

10.56 GPixel/s

19.50 GTexel/s

Texture Rate

10.56 GTexel/s

-

624.0 GFLOPS

FP32 (float)

422.4 GFLOPS

39.00 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

Unknown

TDP

55W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

M88

Sun S3 XT (216-0841009)

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.69 billion

Transistors

0.666 billion

56 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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