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 RTX 3080 Mobile
CORE STATE
GA104
VRAM
8 GB
CLOCK SPEED
1545 MHz
TDP
115 W
BUS WIDTH
256 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
660M
RTX 3080 Mobile
Core Specs
Shading Units
384
6,144
+1500.0%
Shaders
384
6,144
+1500.0%
TMUs
24
192
+700.0%
ROPs
16
96
+500.0%
Compute Units
6
—
SM Count
—
48
Clocks
Base Clock
1500 MHz
1110 MHz
Boost Clock
1900 MHz
1545 MHz
Memory Clock
System Shared
1750 MHz
14 Gbps effective
Memory
Memory Size
System Shared
8 GB
VRAM (MB)
—
8,192
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
256 bit
Bandwidth
System Dependent
448.0 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
148.3 GPixel/s
Texture Rate
45.60 GTexel/s
296.6 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
18.98 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
296.6 GFLOPS (1:64)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
18.98 TFLOPS (1:1)
AI/RT
RT Cores
6
48
+700.0%
Tensor Cores
—
192
Power
TDP
40 W
115 W
TDP (W)
40
115
+187.5%
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Ampere
GPU Name
Rembrandt
GA104
Generation
Navi II IGP
(Rembrandt Mobile)
GeForce 30 Mobile
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
GeForce 20 Mobile
Successor
Navi III IGP
—