ATI Mobility Radeon HD 3850 X2 vs AMD Radeon HD 8690M

VS

ATI Mobility Radeon HD 3850 X2

AMD Radeon HD 8690M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3850 X2 and 2GB VRAM Radeon HD 8690M 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

Larger VRAM bandwidth (48.00GB/s vs 32.00GB/s)

AMD Radeon HD 8690M 's Advantages

Released 4 years and 9 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3850 X2

0.371 TFLOPS

Radeon HD 8690M +68%

0.624 TFLOPS

Mobility Radeon HD 3850 X2

VS

Radeon HD 8690M

Graphics Card

Jun 2008

Release Date

Mar 2013

M8x

Generation

Solar System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

750 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

64bit

48.00GB/s

Bandwidth

32.00GB/s

Render Config

4

Compute Units

5

-

320

Shading Units

320

16

TMUs

20

16

ROPs

8

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

9.280 GPixel/s

Pixel Rate

7.800 GPixel/s

9.280 GTexel/s

Texture Rate

19.50 GTexel/s

-

371.2 GFLOPS

FP32 (float)

624.0 GFLOPS

74.24 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

70W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

M88

GPU Name

Sun

-

GPU Variant

Sun S3 XT (216-0841009)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

0.69 billion

192 mm²

Die Size

56 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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