GPUs

NVIDIA GeForce 840M vs NVIDIA GeForce GTX 880M Full Specs

384 Shaders
1.03GHz
1,536 Shaders
993MHz
2GB DDR316GB/s
4GB GDDR5160GB/s
··
790.3 GFLOPS
··
3.05 TFLOPS
Form Factor
Soldered
Form Factor
Soldered
TDP
30W
TDP
130W

GeForce 840MGeForce 840M790.3 GFLOPSFP32
x1
GeForce GTX 880MGeForce GTX 880M3.05 TFLOPSFP32
x3.86

Clock Speed
··
Clock Speed
··
Peak OPS
790.3 GFLOPSFP32
Peak OPS
3.05 TFLOPSFP32
FP32
790.3 GFLOPS
FP32
3.05 TFLOPS
FP64
24.7 GFLOPS
FP64
127.1 GFLOPS
Pixel Rate
8.2 GPixel/s
Pixel Rate
31.8 GPixel/s
Texture Rate
24.7 GTexel/s
Texture Rate
127.1 GTexel/s

Shaders
384 Shaders
Shaders
1,536 Shaders
TMUs
24 TMUs
TMUs
128 TMUs
ROPs
8 ROPs
ROPs
32 ROPs
SMs
3 SMs
SMs
8 SMs

Boost Clock
1.03GHz
Boost Clock
993MHz

L2 Cache
1MB shared
L2 Cache
512KB shared

2GB DDR3
4GB GDDR5
Memory Bus
64-bit
Memory Bus
256-bit
Memory Speed
2GT/s
Memory Speed
5GT/s
Memory Bandwidth
16GB/s
Memory Bandwidth
160GB/s

TDP
30W
TDP
130W

Multi-Monitor
2
Multi-Monitor
3

-
Encoder Model
NVENC 1

Decoder Model
VP6
Decoder Model
NVDEC 1

Form Factor
Soldered
Form Factor
Soldered

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
GeForce 2013 branding
Branding
GeForce GTX 2014 branding
Codename
NV118
Codename
NVE4
Chip Variant
-
Chip Variant
GK104-200-KD-A2
Market Segment
Laptop
Market Segment
Laptop
Release Date
Mar 12, 2014
Release Date
Mar 12, 2014

Foundry
TSMC
Foundry
TSMC
Fabrication Node
28nm
Fabrication Node
28nm
Die Size
89mm²
Die Size
294mm²
Transistor Count
1.1 Billion
Transistor Count
3.5 Billion
Transistor Density
12.61 MTr/mm²
Transistor Density
12.04 MTr/mm²

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