GPU Comparison
RADEON
AMD Radeon 660M
CORE STATE
Rembrandt
VRAM
System Shared
CLOCK SPEED
1900 MHz
TDP
40 W
BUS WIDTH
System Shared
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2022
VS
GEFORCE
GeForce 940M
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1098 MHz
TDP
75 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
940M
Core Specs
Shading Units
384
512
+33.3%
Shaders
384
512
+33.3%
TMUs
24
32
+33.3%
ROPs
16
16
0.0%
Compute Units
6
—
Clocks
Base Clock
1500 MHz
1020 MHz
Boost Clock
1900 MHz
1098 MHz
Memory Clock
System Shared
900 MHz
1800 Mbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
DDR3
Memory Bus
System Shared
64 bit
Bandwidth
System Dependent
14.40 GB/s
Cache
L1 Cache
128 KB per Array
64 KB (per SMM)
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
17.57 GPixel/s
Texture Rate
45.60 GTexel/s
35.14 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
1,124.4 GFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
35.14 GFLOPS (1:32)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
—
AI/RT
RT Cores
6
—
Power
TDP
40 W
75 W
TDP (W)
40
75
+87.5%
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Maxwell
GPU Name
Rembrandt
GM107
Generation
Navi II IGP
(Rembrandt Mobile)
GeForce 900M
Process Size
6 nm
28 nm
Transistors
13,100 million
1,870 million
Die Size
208 mm²
148 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
12.6M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
3.0
CUDA
—
5.0
Shader Model
6.8
6.7 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
MXM-B (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
GeForce 800M
Successor
Navi III IGP
GeForce 10 Mobile