AMD Radeon R5 A320 vs NVIDIA GeForce GT 420M

VS

AMD Radeon R5 A320

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A320 and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 A320 's Advantages

Released 4 years and 4 months late

Boost Clock825MHz

More VRAM (1024GB vs 512GB)

224 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R5 A320 +175%

0.528 TFLOPS

GeForce GT 420M

0.192 TFLOPS

Radeon R5 A320

VS

GeForce GT 420M

Graphics Card

Jan 2015

Release Date

Sep 2010

All-In-One

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

750 MHz

Base Clock

-

825 MHz

Boost Clock

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

25.60GB/s

Render Config

5

Compute Units

-

SM Count

2

320

Shading Units

96

20

TMUs

16

8

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

2.000 GPixel/s

16.50 GTexel/s

Texture Rate

8.000 GTexel/s

-

528.0 GFLOPS

FP32 (float)

192.0 GFLOPS

-

FP64 (double)

16.00 GFLOPS

Board Design

Unknown

TDP

23W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Jet

GPU Name

GF108

Jet PRO (216-0856040)

GPU Variant

N11P-GE-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

0.585 billion

56 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

2.1

6.5 (5.1)

Shader Model

5.1

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