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
RTX A3000 Mobile
CORE STATE
GA104
VRAM
6 GB
CLOCK SPEED
1230 MHz
TDP
70 W
BUS WIDTH
192 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RTX A3000 Mobile
Core Specs
Shading Units
384
4,096
+966.7%
Shaders
384
4,096
+966.7%
TMUs
24
128
+433.3%
ROPs
16
64
+300.0%
Compute Units
6
—
SM Count
—
32
Clocks
Base Clock
1500 MHz
600 MHz
Boost Clock
1900 MHz
1230 MHz
Memory Clock
System Shared
1375 MHz
11 Gbps effective
Memory
Memory Size
System Shared
6 GB
VRAM (MB)
—
6,144
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
192 bit
Bandwidth
System Dependent
264.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
2 MB
4 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
78.72 GPixel/s
Texture Rate
45.60 GTexel/s
157.4 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
10.08 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
157.4 GFLOPS (1:64)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
10.08 TFLOPS (1:1)
AI/RT
RT Cores
6
32
+433.3%
Tensor Cores
—
128
Power
TDP
40 W
70 W
TDP (W)
40
70
+75.0%
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Ampere
GPU Name
Rembrandt
GA104
Generation
Navi II IGP
(Rembrandt Mobile)
Ampere-MW
(Ax000)
Process Size
6 nm
8 nm
Transistors
13,100 million
17,400 million
Die Size
208 mm²
392 mm²
Foundry
TSMC
Samsung
Density
63.0M / mm²
44.4M / 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
—
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Quadro Turing-M
Successor
Navi III IGP
Ada-MW