NVIDIA GeForce 840A vs NVIDIA GeForce 820M

VS

NVIDIA GeForce 840A

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Boost Clock1124MHz

Lower TDP (33W vs 45W)

NVIDIA GeForce 820M 's Advantages

Released 1 years late

Larger VRAM bandwidth (28.83GB/s vs 16.02GB/s)

Score

Benchmark

FP32 (float)

GeForce 840A +38%

0.863 TFLOPS

GeForce 820M

0.622 TFLOPS

GeForce 840A

VS

GeForce 820M

Graphics Card

Mar 2014

Release Date

Mar 2015

GeForce 800A

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

901 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

28.83GB/s

Render Config

-

384

Shading Units

384

16

TMUs

32

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

6.480 GPixel/s

17.98 GTexel/s

Texture Rate

25.92 GTexel/s

-

863.2 GFLOPS

FP32 (float)

622.1 GFLOPS

26.98 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

33W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GK107

-

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce 840A vs NVIDIA GeForce G103M

2

NVIDIA GeForce 840A vs AMD Radeon R5 M465

3

NVIDIA GeForce 840A vs NVIDIA GeForce GTX 1080 Max Q

4

NVIDIA GeForce 840A vs NVIDIA GeForce 705A

5

NVIDIA GeForce 840A vs AMD Radeon R9 M380

6

NVIDIA GeForce 840A vs AMD Radeon 520 Mobile

7

NVIDIA GeForce 840A vs AMD Radeon HD 7650M Rebrand

8

NVIDIA GeForce 840A vs ATI Radeon E4690 PCIe

9

NVIDIA GeForce 840A vs NVIDIA GeForce GT 620M

10

NVIDIA GeForce 840A vs NVIDIA GeForce GT 550M

Related News

1

AMD's Thunderous Strike: Ryzen 9 9950X3D Performance Scores Revealed for the First Time!

2

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

3

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

4

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

5

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

6

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

7

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

8

CXMT Reportedly Achieves 80% Yield in DDR5 Production

9

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

10

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