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 560M
CORE STATE
GF116
VRAM
1536 MB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
192 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
840M
GTX 560M
Core Specs
Shading Units
384
192
-50.0%
Shaders
384
192
-50.0%
TMUs
16
32
+100.0%
ROPs
8
24
+200.0%
SM Count
—
4
Clocks
Base Clock
1029 MHz
—
Boost Clock
1124 MHz
—
GPU Clock
—
775 MHz
Shader Clock
—
1550 MHz
Memory Clock
1001 MHz
2 Gbps effective
625 MHz
2.5 Gbps effective
Memory
Memory Size
2 GB
1536 MB
VRAM (MB)
2,048
1,536
-25.0%
Memory Type
DDR3
GDDR5
Memory Bus
64 bit
192 bit
Bandwidth
16.02 GB/s
60.00 GB/s
Cache
L1 Cache
64 KB (per SMM)
64 KB (per SM)
L2 Cache
1024 KB
384 KB
Performance
Pixel Rate
8.992 GPixel/s
6.200 GPixel/s
Texture Rate
17.98 GTexel/s
24.80 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
595.2 GFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
49.60 GFLOPS (1:12)
Power
TDP
33 W
75 W
TDP (W)
33
75
+127.3%
Power Connectors
None
None
Architecture
Architecture
Maxwell
Fermi 2.0
GPU Name
GM108S
GF116
Generation
GeForce 800M
GeForce 500M
Process Size
28 nm
40 nm
Transistors
1,020 million
1,170 million
Die Size
77 mm²
238 mm²
Foundry
TSMC
TSMC
Density
13.2M / mm²
4.9M / mm²
API Support
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
—
OpenCL
3.0
1.1
CUDA
5.0
2.1
Shader Model
6.7 (5.1)
5.1
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 400M
Successor
GeForce 900M
GeForce 600M