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
B200
CORE STATE
GB100
VRAM
90 GB
CLOCK SPEED
1965 MHz
TDP
1000 W
BUS WIDTH
4096 bit
ARCHITECTURE
Blackwell
PROCESS
5 nm
LAUNCH DATE
—
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
B200
Core Specs
Shading Units
384
18,944
+4833.3%
Shaders
384
18,944
+4833.3%
TMUs
24
592
+2366.7%
ROPs
16
24
+50.0%
Compute Units
6
—
SM Count
—
148
Clocks
Base Clock
1500 MHz
700 MHz
Boost Clock
1900 MHz
1965 MHz
Memory Clock
System Shared
2000 MHz
8 Gbps effective
Memory
Memory Size
System Shared
90 GB
VRAM (MB)
—
92,160
Memory Type
System Shared
HBM3e
Memory Bus
System Shared
4096 bit
Bandwidth
System Dependent
4.10 TB/s
Cache
L1 Cache
128 KB per Array
256 KB (per SM)
L2 Cache
2 MB
50 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
47.16 GPixel/s
Texture Rate
45.60 GTexel/s
1,163.3 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
74.45 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
37.22 TFLOPS (1:2)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
1,191.2 TFLOPS (16:1)
AI/RT
RT Cores
6
—
Tensor Cores
—
592
Power
TDP
40 W
1000 W
TDP (W)
40
1,000
+2400.0%
Suggested PSU
—
1400 W
Power Connectors
None
—
Architecture
Architecture
RDNA 2.0
Blackwell
GPU Name
Rembrandt
GB100
Generation
Navi II IGP
(Rembrandt Mobile)
Server Blackwell
(Bxx)
Process Size
6 nm
5 nm
Transistors
13,100 million
104,000 million
Die Size
208 mm²
—
Foundry
TSMC
TSMC
Density
63.0M / mm²
—
API Support
DirectX
12 Ultimate (12_2)
—
OpenGL
4.6
—
Vulkan
1.4
—
OpenCL
2.0
3.0
CUDA
—
10.0
Shader Model
6.8
—
Physical
Slot Width
IGP
SXM Module
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 5.0 x16
Other
Production
End-of-life
Active
Predecessor
Vega II IGP
Server Hopper
Successor
Navi III IGP
Server Rubin