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
Quadro P1000
CORE STATE
GP107
VRAM
4 GB
CLOCK SPEED
1480 MHz
TDP
47 W
BUS WIDTH
128 bit
ARCHITECTURE
Pascal
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
840M
Quadro P1000
Core Specs
Shading Units
384
640
+66.7%
Shaders
384
640
+66.7%
TMUs
16
40
+150.0%
ROPs
8
32
+300.0%
SM Count
—
5
Clocks
Base Clock
1029 MHz
1266 MHz
Boost Clock
1124 MHz
1480 MHz
Memory Clock
1001 MHz
2 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
128 bit
Bandwidth
16.02 GB/s
80.19 GB/s
Cache
L1 Cache
64 KB (per SMM)
48 KB (per SM)
L2 Cache
1024 KB
1024 KB
Performance
Pixel Rate
8.992 GPixel/s
47.36 GPixel/s
Texture Rate
17.98 GTexel/s
59.20 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
1.894 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
59.20 GFLOPS (1:32)
FP16 (TFLOPS)
—
29.60 GFLOPS (1:64)
Power
TDP
33 W
47 W
TDP (W)
33
47
+42.4%
Suggested PSU
—
200 W
Power Connectors
None
None
Architecture
Architecture
Maxwell
Pascal
GPU Name
GM108S
GP107
Generation
GeForce 800M
Quadro Pascal
(Px000)
Process Size
28 nm
14 nm
Transistors
1,020 million
3,300 million
Die Size
77 mm²
132 mm²
Foundry
TSMC
Samsung
Density
13.2M / mm²
25.0M / 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
6.1
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
IGP
Single-slot
Length
—
150 mm
5.9 inches
Height
—
69 mm
2.7 inches
Outputs
Portable Device Dependent
4x mini-DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
GeForce 700M
Quadro Maxwell
Successor
GeForce 900M
Quadro Volta