ATI Mobility Radeon HD 4670 Mac Edition vs AMD Radeon 550X Mobile

VS

ATI Mobility Radeon HD 4670 Mac Edition

AMD Radeon 550X Mobile

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 4670 Mac Edition and 4GB VRAM Radeon 550X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 Mac Edition 's Advantages

Lower TDP (35W vs 50W)

AMD Radeon 550X Mobile 's Advantages

Released 8 years and 7 months late

Boost Clock1287MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (48.00GB/s vs 25.28GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon 550X Mobile +278%

1.647 TFLOPS

Mobility Radeon HD 4670 Mac Edition

VS

Radeon 550X Mobile

Graphics Card

Sep 2009

Release Date

Apr 2018

M9x

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1287 MHz

790 MHz

Memory Clock

1500 MHz

Memory

256MB

Memory Size

4GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

25.28GB/s

Bandwidth

48.00GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

640

32

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

5.440 GPixel/s

Pixel Rate

20.59 GPixel/s

21.76 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

435.2 GFLOPS

FP32 (float)

1.647 TFLOPS

-

FP64 (double)

103.0 GFLOPS

Board Design

35W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M96

GPU Name

Polaris 23

M96 XT (216-0729051)

GPU Variant

Polaris 23 MXT

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.514 billion

Transistors

2.2 billion

146 mm²

Die Size

103 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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