AMD Radeon R5 A255 vs AMD Radeon HD 7670M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 1024MB VRAM Radeon HD 7670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A255 's Advantages

Released 1 years and 11 months late

Boost Clock940MHz

Larger VRAM bandwidth (64.00GB/s vs 28.80GB/s)

AMD Radeon HD 7670M 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A255 +25%

0.721 TFLOPS

Radeon HD 7670M

0.576 TFLOPS

Radeon R5 A255

VS

Radeon HD 7670M

Graphics Card

Jan 2014

Release Date

Feb 2012

All-In-One

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

6

Compute Units

6

384

Shading Units

480

24

TMUs

24

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

7.520 GPixel/s

Pixel Rate

9.600 GPixel/s

22.56 GTexel/s

Texture Rate

14.40 GTexel/s

-

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

576.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Topaz

GPU Name

Thames

Topaz PRO (216-0858030)

GPU Variant

Thames XT (216-0833000)

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

0.716 billion

125 mm²

Die Size

104 mm²

Board Design

Unknown

TDP

20W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

5.0

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