AMD Radeon HD 7850M vs AMD Radeon HD 8670M

VS

AMD Radeon HD 7850M

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7850M and 1024MB VRAM Radeon HD 8670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

320 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Released 11 months late

Boost Clock975MHz

Score

Benchmark

FP32 (float)

Radeon HD 7850M +38%

0.864 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

Radeon HD 7850M

VS

Radeon HD 8670M

Graphics Card

Apr 2012

Release Date

Mar 2013

London

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

5

-

640

Shading Units

320

40

TMUs

20

16

ROPs

8

-

16 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

-

864.0 GFLOPS

FP32 (float)

624.0 GFLOPS

54.00 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

40W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Heathrow

GPU Name

Sun

Heathrow PRO

GPU Variant

Sun S3 XT (216-0841009)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

0.69 billion

123 mm²

Die Size

56 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

5.1

Shader Model

6.5 (5.1)

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