AMD Radeon HD 6870M vs AMD Radeon HD 8690M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 2GB VRAM Radeon HD 8690M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.00GB/s)

480 additional rendering cores

AMD Radeon HD 8690M 's Advantages

Released 2 years and 2 months late

Boost Clock975MHz

More VRAM (2GB vs 1GB)

Score

Benchmark

FP32 (float)

Radeon HD 6870M +73%

1.08 TFLOPS

Radeon HD 8690M

0.624 TFLOPS

Radeon HD 6870M

VS

Radeon HD 8690M

Graphics Card

Jan 2011

Release Date

Mar 2013

Vancouver

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

32.00GB/s

Render Config

-

SM Count

-

10

Compute Units

5

800

Shading Units

320

40

TMUs

20

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

7.800 GPixel/s

27.00 GTexel/s

Texture Rate

19.50 GTexel/s

-

FP16 (half)

-

1080 GFLOPS

FP32 (float)

624.0 GFLOPS

-

FP64 (double)

39.00 GFLOPS

Graphics Processor

Granville

GPU Name

Sun

Granville XT (216-0769024)

GPU Variant

Sun S3 XT (216-0841009)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

0.69 billion

166 mm²

Die Size

56 mm²

Board Design

50W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5 (5.1)

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