NVIDIA GeForce 840M vs NVIDIA GeForce RTX 3080

Table of Contents

Graphics Processor

GPU model GM108 GA102
GPU variant N15S-GT GA102-200-KD-A1
Architecture Maxwell Ampere
Foundry TSMC Samsung
Manufacturing process 28 nm 8 nm
Number of transistors unknown 28,300 million
Die size unknown 628 mm²

Mobile graphics

Release date Mar 12th, 2014
Generation GeForce 800M
Production End-of-life
Interface PCIe 3.0 x8
Predecessor GeForce 700M
Successor GeForce 900M

Clocks

Base clock 1029 MHz 1440 MHz
Boost clock 1124 MHz 1710 MHz
Memory clock 1001 MHz 2 Gbps effective 1188 MHz 19 Gbps effective

Memory Configuration

Memory size 2 GB 10 GB
Memory type DDR3 GDDR6X
Memory bus width 64 bit 320 bit
Bandwidth 16.02 GB/s 760.3 GB/s

Render Configuration

Shading units 384 8704
TMUs 16 272
ROPs 8 96
SMM count 3
Cache L1 64 KB (per SMM) 128 KB (per SM)
Cache L2 1024 KB 5 MB
SM count 68
Tensor cores 272
RT cores 68

Performance

Pixel rate 8.992 GPixel/s 164.2 GPixel/s
Texture rate 17.98 GTexel/s 465.1 GTexel/s
FP32 (float) performance 863.2 GFLOPS 29.77 TFLOPS
FP64 (double) performance 26.98 GFLOPS (1:32) 465.1 GFLOPS (1:64)
FP16 (half) performance 29.77 TFLOPS (1:1)

Dimensions & Outputs

Slot width IGP Dual-slot
TDP 33 W 320 W
Outputs No outputs 1x HDMI3x DisplayPort
Length 285 mm 11.2 inches
Suggested PSU 700 W
Power connectors 1x 12-pin
Board number PG132 SKU 30
Width 112 mm 4.4 inches
Height 40 mm 1.6 inches

API Support & Features

DirectX 12 (11_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 3.0 3.0
Vulkan 1.1 1.2
CUDA 5.0 8.6
Shader model 5.1 6.6

Other Features

Graphics Card

Release date Sep 1st, 2020
Generation GeForce 30
Production Active
Launch price 699 USD
Interface PCIe 4.0 x16
gpu.details.availability Sep 17th, 2020
Predecessor GeForce 20
Current price Amazon / Newegg
Reviews 99 in our database

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