AMD Radeon HD 8690M vs AMD Radeon HD 6990M

VS

AMD Radeon HD 8690M

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8690M 's Advantages

Released 1 years and 8 months late

Boost Clock975MHz

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 32.00GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8690M

0.624 TFLOPS

Radeon HD 6990M +156%

1.602 TFLOPS

Radeon HD 8690M

VS

Radeon HD 6990M

Graphics Card

Mar 2013

Release Date

Jul 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

32.00GB/s

Bandwidth

115.2GB/s

Render Config

5

Compute Units

14

-

320

Shading Units

1120

20

TMUs

56

8

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

22.88 GPixel/s

19.50 GTexel/s

Texture Rate

40.04 GTexel/s

-

624.0 GFLOPS

FP32 (float)

1.602 TFLOPS

39.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

Blackcomb

Sun S3 XT (216-0841009)

GPU Variant

Blackcomb XTX (216-0811030)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

1.7 billion

56 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

5.0

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