AMD Radeon 660M vs NVIDIA A800 PCIe 40 GB
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Nov 2022
Generation
Rembrandt
Ampere
Type
Integrated
AI GPU
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1500 MHz
765 MHz
Boost Clock
1900 MHz
1410 MHz
Memory Clock
System Shared
1215 MHz
Memory
Memory Size
System Shared
40GB
Memory Type
System Shared
HBM2e
Memory Bus
System Shared
5120bit
Bandwidth
System Dependent
1555GB/s
Render Config
Compute Units
6
-
Shading Units
384
6912
TMUs
24
432
ROPs
16
160
RT Cores
6
-
L1 Cache
128 KB per Array
192 KB (per SM)
L2 Cache
2 MB
40 MB
SM Count
-
108
Tensor Cores
-
432
Theoretical Performance
Pixel Rate
30.40 GPixel/s
225.6 GPixel/s
Texture Rate
45.60 GTexel/s
609.1 GTexel/s
FP16 (half)
2.918 TFLOPS
77.97 TFLOPS
FP32 (float)
1459 GFLOPS
19.49 TFLOPS
FP64 (double)
91.20 GFLOPS
9.746 TFLOPS
Graphics Processor
GPU Name
Rembrandt
GA100
Architecture
RDNA 2.0
Ampere
Foundry
TSMC
TSMC
Process Size
6 nm
7 nm
Transistors
13.1 billion
54.2 billion
Die Size
210 mm²
826 mm²
Board Design
TDP
15W
250W
Outputs
No outputs
No outputs
Power Connectors
None
8-pin EPS
Suggested PSU
-
600 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.0
3.0
Vulkan
1.2
N/A
Shader Model
6.5
N/A
CUDA
-
8.0
📊 Benchmark
3DMark Time Spy
1,537
-
3DMark Time Spy Extreme
701
-