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 GTX 950
CORE STATE
GM206
VRAM
2 GB
CLOCK SPEED
1188 MHz
TDP
90 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
840M
GTX 950
Core Specs
Shading Units
384
768
+100.0%
Shaders
384
768
+100.0%
TMUs
16
48
+200.0%
ROPs
8
32
+300.0%
Clocks
Base Clock
1029 MHz
1024 MHz
Boost Clock
1124 MHz
1188 MHz
Memory Clock
1001 MHz
2 Gbps effective
1653 MHz
6.6 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
128 bit
Bandwidth
16.02 GB/s
105.8 GB/s
Cache
L1 Cache
64 KB (per SMM)
48 KB (per SMM)
L2 Cache
1024 KB
1024 KB
Performance
Pixel Rate
8.992 GPixel/s
38.02 GPixel/s
Texture Rate
17.98 GTexel/s
57.02 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
1.825 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
57.02 GFLOPS (1:32)
Power
TDP
33 W
90 W
TDP (W)
33
90
+172.7%
Suggested PSU
—
250 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
Maxwell
Maxwell 2.0
GPU Name
GM108S
GM206
Generation
GeForce 800M
GeForce 900
Process Size
28 nm
28 nm
Transistors
1,020 million
2,940 million
Die Size
77 mm²
228 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
12.9M / mm²
API Support
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
3.0
3.0
CUDA
5.0
5.2
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
202 mm
8 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.03x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
159 USD
Production
End-of-life
End-of-life
Predecessor
GeForce 700M
GeForce 700
Successor
GeForce 900M
GeForce 10