GPU Comparison
GEFORCE
NVIDIA GeForce 840M
CORE STATE
GM108S
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
33 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
VS
GEFORCE
GeForce RTX 3080 Mobile
CORE STATE
GA104
VRAM
8 GB
CLOCK SPEED
1545 MHz
TDP
115 W
BUS WIDTH
256 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
840M
RTX 3080 Mobile
Core Specs
Shading Units
384
6,144
+1500.0%
Shaders
384
6,144
+1500.0%
TMUs
16
192
+1100.0%
ROPs
8
96
+1100.0%
SM Count
—
48
Clocks
Base Clock
1029 MHz
1110 MHz
Boost Clock
1124 MHz
1545 MHz
Memory Clock
1001 MHz
2 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
DDR3
GDDR6
Memory Bus
64 bit
256 bit
Bandwidth
16.02 GB/s
448.0 GB/s
Cache
L1 Cache
64 KB (per SMM)
128 KB (per SM)
L2 Cache
1024 KB
4 MB
Performance
Pixel Rate
8.992 GPixel/s
148.3 GPixel/s
Texture Rate
17.98 GTexel/s
296.6 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
18.98 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
296.6 GFLOPS (1:64)
FP16 (TFLOPS)
—
18.98 TFLOPS (1:1)
AI/RT
RT Cores
—
48
Tensor Cores
—
192
Power
TDP
33 W
115 W
TDP (W)
33
115
+248.5%
Power Connectors
None
None
Architecture
Architecture
Maxwell
Ampere
GPU Name
GM108S
GA104
Generation
GeForce 800M
GeForce 30 Mobile
Process Size
28 nm
8 nm
Transistors
1,020 million
17,400 million
Die Size
77 mm²
392 mm²
Foundry
TSMC
Samsung
Density
13.2M / mm²
44.4M / mm²
API Support
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
3.0
3.0
CUDA
5.0
8.6
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
IGP
—
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 700M
GeForce 20 Mobile
Successor
GeForce 900M
—