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
RTX 4000 Ada Generation
CORE STATE
AD104
VRAM
20 GB
CLOCK SPEED
2175 MHz
TDP
130 W
BUS WIDTH
160 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
840M
RTX 4000 Ada Generation
Core Specs
Shading Units
384
6,144
+1500.0%
Shaders
384
6,144
+1500.0%
TMUs
16
192
+1100.0%
ROPs
8
64
+700.0%
SM Count
—
48
Clocks
Base Clock
1029 MHz
1500 MHz
Boost Clock
1124 MHz
2175 MHz
Memory Clock
1001 MHz
2 Gbps effective
2250 MHz
18 Gbps effective
Memory
Memory Size
2 GB
20 GB
VRAM (MB)
2,048
20,480
+900.0%
Memory Type
DDR3
GDDR6
Memory Bus
64 bit
160 bit
Bandwidth
16.02 GB/s
360.0 GB/s
Cache
L1 Cache
64 KB (per SMM)
128 KB (per SM)
L2 Cache
1024 KB
48 MB
Performance
Pixel Rate
8.992 GPixel/s
139.2 GPixel/s
Texture Rate
17.98 GTexel/s
417.6 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
26.73 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
417.6 GFLOPS (1:64)
FP16 (TFLOPS)
—
26.73 TFLOPS (1:1)
AI/RT
RT Cores
—
48
Tensor Cores
—
192
Power
TDP
33 W
130 W
TDP (W)
33
130
+293.9%
Suggested PSU
—
300 W
Power Connectors
None
1x 16-pin
Architecture
Architecture
Maxwell
Ada Lovelace
GPU Name
GM108S
AD104
Generation
GeForce 800M
Workstation Ada
(x000A)
Process Size
28 nm
5 nm
Transistors
1,020 million
35,800 million
Die Size
77 mm²
294 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
121.8M / 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
8.9
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
IGP
Single-slot
Length
—
245 mm
9.6 inches
Height
—
112 mm
4.4 inches
Outputs
Portable Device Dependent
4x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
GeForce 700M
Workstation Ampere
Successor
GeForce 900M
Blackwell PRO W