ATI Mobility Radeon HD 4670 Mac Edition vs AMD Radeon Pro 455

VS

ATI Mobility Radeon HD 4670 Mac Edition

AMD Radeon Pro 455

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 4670 Mac Edition and 2GB VRAM Radeon Pro 455 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 455 's Advantages

Released 7 years and 1 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (81.28GB/s vs 25.28GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon Pro 455 +201%

1.313 TFLOPS

Mobility Radeon HD 4670 Mac Edition

VS

Radeon Pro 455

Graphics Card

Sep 2009

Release Date

Oct 2016

M9x

Generation

Radeon Pro Mac

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

790 MHz

Memory Clock

1270 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.28GB/s

Bandwidth

81.28GB/s

Render Config

4

Compute Units

12

-

320

Shading Units

768

32

TMUs

48

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

5.440 GPixel/s

Pixel Rate

13.68 GPixel/s

21.76 GTexel/s

Texture Rate

41.04 GTexel/s

-

FP16 (half)

1313 GFLOPS

435.2 GFLOPS

FP32 (float)

1313 GFLOPS

-

FP64 (double)

82.08 GFLOPS

Board Design

35W

TDP

35W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M96

GPU Name

Baffin

M96 XT (216-0729051)

GPU Variant

Baffin PRO

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.514 billion

Transistors

3 billion

146 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

-

4.1

Shader Model

6.4

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