NVIDIA GeForce RTX 5080 vs AMD Radeon 660M
GPU Specs Compare
Graphics Card
Release Date
Jan 2025
Jan 2022
Generation
GeForce 50
Rembrandt
Type
Desktop
Integrated
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
2295 MHz
1500 MHz
Boost Clock
2617 MHz
1900 MHz
Memory Clock
1875 MHz
System Shared
Memory
Memory Size
16GB
System Shared
Memory Type
GDDR7
System Shared
Memory Bus
256bit
System Shared
Bandwidth
960.0GB/s
System Dependent
Render Config
SM Count
84
-
Shading Units
10752
384
TMUs
336
24
ROPs
112
16
Tensor Cores
336
-
RT Cores
84
6
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
64 MB
2 MB
Compute Units
-
6
Theoretical Performance
Pixel Rate
293.1 GPixel/s
30.40 GPixel/s
Texture Rate
879.3 GTexel/s
45.60 GTexel/s
FP16 (half)
56.28 TFLOPS
2.918 TFLOPS
FP32 (float)
56.28 TFLOPS
1459 GFLOPS
FP64 (double)
879.3 GFLOPS
91.20 GFLOPS
Graphics Processor
GPU Name
GB203
Rembrandt
GPU Variant
GB203-400-A1
-
Architecture
Blackwell 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
6 nm
Transistors
45.6 billion
13.1 billion
Die Size
378 mm²
210 mm²
Board Design
TDP
360W
15W
Suggested PSU
750 W
-
Outputs
1x HDMI 2.1b3x DisplayPort 2.1b
No outputs
Power Connectors
1x 16-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.4
1.2
CUDA
12.0
-
Shader Model
6.8
6.5
📊 Benchmark
3DMark Time Spy
33,116
1,537
3DMark Time Spy Extreme
16,627
701
3DMark Speed Way
9,296
-