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
Tesla P40
CORE STATE
GP102
VRAM
24 GB
CLOCK SPEED
1531 MHz
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
Pascal
PROCESS
16 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
660M
Tesla P40
Core Specs
Shading Units
384
3,840
+900.0%
Shaders
384
3,840
+900.0%
TMUs
24
240
+900.0%
ROPs
16
96
+500.0%
Compute Units
6
—
SM Count
—
30
Clocks
Base Clock
1500 MHz
1303 MHz
Boost Clock
1900 MHz
1531 MHz
Memory Clock
System Shared
1808 MHz
7.2 Gbps effective
Memory
Memory Size
System Shared
24 GB
VRAM (MB)
—
24,576
Memory Type
System Shared
GDDR5
Memory Bus
System Shared
384 bit
Bandwidth
System Dependent
347.1 GB/s
Cache
L1 Cache
128 KB per Array
48 KB (per SM)
L2 Cache
2 MB
3 MB
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
30.40 GPixel/s
147.0 GPixel/s
Texture Rate
45.60 GTexel/s
367.4 GTexel/s
FP32 (TFLOPS)
1,459.2 GFLOPS
11.76 TFLOPS
FP64 (TFLOPS)
91.20 GFLOPS (1:16)
367.4 GFLOPS (1:32)
FP16 (TFLOPS)
2.918 TFLOPS (2:1)
183.7 GFLOPS (1:64)
AI/RT
RT Cores
6
—
Power
TDP
40 W
250 W
TDP (W)
40
250
+525.0%
Suggested PSU
—
600 W
Power Connectors
None
8-pin EPS
Architecture
Architecture
RDNA 2.0
Pascal
GPU Name
Rembrandt
GP102
Generation
Navi II IGP
(Rembrandt Mobile)
Tesla Pascal
(Pxx)
Process Size
6 nm
16 nm
Transistors
13,100 million
11,800 million
Die Size
208 mm²
471 mm²
Foundry
TSMC
TSMC
Density
63.0M / mm²
25.1M / 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
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
111 mm
4.4 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Other
Launch Price
—
5,699 USD
Production
End-of-life
End-of-life
Predecessor
Vega II IGP
Tesla Maxwell
Successor
Navi III IGP
Tesla Volta