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 970M
CORE STATE
GM204
VRAM
6 GB
CLOCK SPEED
1038 MHz
TDP
—
BUS WIDTH
192 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2014
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
GTX 970M
Core Specs
Shading Units
384
1,280
+233.3%
Shaders
384
1,280
+233.3%
TMUs
16
80
+400.0%
ROPs
8
48
+500.0%
Clocks
Base Clock
1029 MHz
924 MHz
Boost Clock
1124 MHz
1038 MHz
Memory Clock
1001 MHz
2 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
2 GB
6 GB
VRAM (MB)
2,048
6,144
+200.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
192 bit
Bandwidth
16.02 GB/s
120.3 GB/s
Cache
L1 Cache
64 KB (per SMM)
48 KB (per SMM)
L2 Cache
1024 KB
1536 KB
Performance
Pixel Rate
8.992 GPixel/s
49.82 GPixel/s
Texture Rate
17.98 GTexel/s
83.04 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
2.657 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
83.04 GFLOPS (1:32)
Power
TDP
33 W
—
TDP (W)
33
—
Power Connectors
None
None
Architecture
Architecture
Maxwell
Maxwell 2.0
GPU Name
GM108S
GM204
Generation
GeForce 800M
GeForce 900M
Process Size
28 nm
28 nm
Transistors
1,020 million
5,200 million
Die Size
77 mm²
398 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
13.1M / 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
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 700M
GeForce 800M
Successor
GeForce 900M
GeForce 10 Mobile