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
Quadro P400
CORE STATE
GP107
VRAM
2 GB
CLOCK SPEED
1252 MHz
TDP
30 W
BUS WIDTH
64 bit
ARCHITECTURE
Pascal
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Quadro P400
Core Specs
Shading Units
384
256
-33.3%
Shaders
384
256
-33.3%
TMUs
24
16
-33.3%
ROPs
16
16
0.0%
Compute Units
6
—
SM Count
—
2
Clocks
Base Clock
1500 MHz
1228 MHz
Boost Clock
1900 MHz
1252 MHz
Memory Clock
System Shared
1002 MHz
4 Gbps effective
Memory
Memory Size
System Shared
2 GB
VRAM (MB)
—
2,048
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
64 bit
Bandwidth
System Dependent
32.06 GB/s
Cache
L1 Cache
128 KB per Array
48 KB (per SM)
L2 Cache
2 MB
512 KB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
20.03 GPixel/s
Texture Rate
45.60 GTexel/s
20.03 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
641.0 GFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
20.03 GFLOPS (1:32)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
10.02 GFLOPS (1:64)
AI/RT
RT Cores
6
—
Power
TDP
40 W
30 W
TDP (W)
40
30
-25.0%
Suggested PSU
—
200 W
Power Connectors
None
None
Architecture
Architecture
RDNA 2.0
Pascal
GPU Name
Rembrandt
GP107
Generation
Navi II IGP
(Rembrandt Mobile)
Quadro Pascal
(Px000)
Process Size
6 nm
14 nm
Transistors
13,100 million
3,300 million
Die Size
208 mm²
132 mm²
Foundry
TSMC
Samsung
Density
63.0M / mm²
25.0M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.0
3.0
CUDA
—
6.1
Shader Model
6.8
6.8
Physical
Slot Width
IGP
Single-slot
Length
—
150 mm
5.9 inches
Height
—
69 mm
2.7 inches
Outputs
Portable Device Dependent
3x mini-DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Quadro Maxwell
Successor
Navi III IGP
Quadro Volta