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
A2
CORE STATE
GA107
VRAM
16 GB
CLOCK SPEED
1770 MHz
TDP
60 W
BUS WIDTH
128 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
A2
Core Specs
Shading Units
384
1,280
+233.3%
Shaders
384
1,280
+233.3%
TMUs
24
40
+66.7%
ROPs
16
32
+100.0%
Compute Units
6
—
SM Count
—
10
Clocks
Base Clock
1500 MHz
1440 MHz
Boost Clock
1900 MHz
1770 MHz
Memory Clock
System Shared
1563 MHz
12.5 Gbps effective
Memory
Memory Size
System Shared
16 GB
VRAM (MB)
—
16,384
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
128 bit
Bandwidth
System Dependent
200.1 GB/s
Cache
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
2 MB
2 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
56.64 GPixel/s
Texture Rate
45.60 GTexel/s
70.80 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
4.531 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
70.80 GFLOPS (1:64)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
4.531 TFLOPS (1:1)
AI/RT
RT Cores
6
10
+66.7%
Tensor Cores
—
40
Power
TDP
40 W
60 W
TDP (W)
40
60
+50.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Ampere
GPU Name
Rembrandt
GA107
Generation
Navi II IGP
(Rembrandt Mobile)
Workstation Ampere
(Ax000)
Process Size
6 nm
8 nm
Transistors
13,100 million
8,700 million
Die Size
208 mm²
200 mm²
Foundry
TSMC
Samsung
Density
63.0M / mm²
43.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
3.0
CUDA
—
8.6
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Single-slot
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Quadro Turing
Successor
Navi III IGP
Workstation Ada