ATI Mobility Radeon HD 4670 vs AMD Radeon 620 Mobile

VS

ATI Mobility Radeon HD 4670

AMD Radeon 620 Mobile

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4670 and 2GB VRAM Radeon 620 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)

Lower TDP (35W vs 50W)

AMD Radeon 620 Mobile 's Advantages

Released 10 years and 4 months late

Boost Clock1024MHz

More VRAM (2GB vs 512GB)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670

0.432 TFLOPS

Radeon 620 Mobile +81%

0.786 TFLOPS

Mobility Radeon HD 4670

VS

Radeon 620 Mobile

Graphics Card

Jan 2009

Release Date

May 2019

M9x

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

1024 MHz

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

14.40GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

384

32

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

8.192 GPixel/s

21.60 GTexel/s

Texture Rate

24.58 GTexel/s

-

FP16 (half)

786.4 GFLOPS

432.0 GFLOPS

FP32 (float)

786.4 GFLOPS

-

FP64 (double)

49.15 GFLOPS

Board Design

35W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M96

GPU Name

Polaris 24

M96 XT (216-0729051)

GPU Variant

Polaris 24 XL

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

1.55 billion

146 mm²

Die Size

125 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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