NVIDIA GeForce 820M vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce 820M

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 80W)

AMD Radeon R9 M390 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 28.83GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M

0.622 TFLOPS

Radeon R9 M390 Mac Edition +215%

1.962 TFLOPS

GeForce 820M

VS

Radeon R9 M390 Mac Edition

Graphics Card

Mar 2015

Release Date

May 2015

GeForce 800M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

901 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.83GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

32

TMUs

64

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

30.66 GPixel/s

25.92 GTexel/s

Texture Rate

61.31 GTexel/s

-

622.1 GFLOPS

FP32 (float)

1.962 TFLOPS

25.92 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

45W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

Pitcairn

-

GPU Variant

Pitcairn PRO (215-0828062)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

2.8 billion

118 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce 820M vs AMD Radeon Pro 575

2

NVIDIA GeForce 820M vs NVIDIA GeForce RTX 3050 Ti Max-Q

3

NVIDIA GeForce 820M vs NVIDIA GeForce GTX 850A

4

NVIDIA GeForce 820M vs AMD Radeon Pro Vega 48

5

NVIDIA GeForce 820M vs NVIDIA RTX 5000 Max-Q Ada Generation

6

NVIDIA GeForce 820M vs AMD Radeon HD 7950M

7

NVIDIA GeForce 820M vs ATI Mobility Radeon HD 4670

8

NVIDIA GeForce 820M vs NVIDIA GeForce 930MX

9

NVIDIA GeForce 820M vs NVIDIA GeForce GTX 470M

10

NVIDIA GeForce 820M vs NVIDIA GeForce GTX 670MX

Related News

1

CXMT Reportedly Achieves 80% Yield in DDR5 Production

2

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

3

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

4

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

5

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

6

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

7

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

8

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

9

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

10

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage