AMD Radeon HD 8690M vs AMD Radeon HD 7850M

VS

AMD Radeon HD 8690M

AMD Radeon HD 7850M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8690M and 2GB VRAM Radeon HD 7850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8690M 's Advantages

Released 11 months late

Boost Clock975MHz

AMD Radeon HD 7850M 's Advantages

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

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8690M

0.624 TFLOPS

Radeon HD 7850M +38%

0.864 TFLOPS

Radeon HD 8690M

VS

Radeon HD 7850M

Graphics Card

Mar 2013

Release Date

Apr 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

32.00GB/s

Bandwidth

64.00GB/s

Render Config

5

Compute Units

10

-

320

Shading Units

640

20

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

10.80 GPixel/s

19.50 GTexel/s

Texture Rate

27.00 GTexel/s

-

624.0 GFLOPS

FP32 (float)

864.0 GFLOPS

39.00 GFLOPS

FP64 (double)

54.00 GFLOPS

Board Design

Unknown

TDP

40W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

Heathrow

Sun S3 XT (216-0841009)

GPU Variant

Heathrow PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.5 billion

56 mm²

Die Size

123 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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