AMD Radeon HD 8690M vs AMD Radeon R9 M290X

VS

AMD Radeon HD 8690M

AMD Radeon R9 M290X

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M and 4GB VRAM Radeon R9 M290X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8690M 's Advantages

Boost Clock has increased by 8% (975MHz vs 900MHz)

AMD Radeon R9 M290X 's Advantages

Released 10 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (153.6GB/s vs 32.00GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8690M

0.624 TFLOPS

Radeon R9 M290X +269%

2.304 TFLOPS

Radeon HD 8690M

VS

Radeon R9 M290X

Graphics Card

Mar 2013

Release Date

Jan 2014

Solar System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

850 MHz

975 MHz

Boost Clock

900 MHz

1000 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

153.6GB/s

Render Config

5

Compute Units

20

-

320

Shading Units

1280

20

TMUs

80

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

28.80 GPixel/s

19.50 GTexel/s

Texture Rate

72.00 GTexel/s

-

624.0 GFLOPS

FP32 (float)

2.304 TFLOPS

39.00 GFLOPS

FP64 (double)

144.0 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

Neptune

Sun S3 XT (216-0841009)

GPU Variant

Neptune XT (216-0847000)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

2.8 billion

56 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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