AMD Radeon RX 640 Mobile vs NVIDIA GeForce RTX 5080
GPU Specs Compare
Graphics Card
Release Date
May 2019
Jan 2025
Generation
Mobility Radeon
GeForce 50
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
1082 MHz
2295 MHz
Boost Clock
1218 MHz
2617 MHz
Memory Clock
1500 MHz
1875 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR7
Memory Bus
64bit
256bit
Bandwidth
48.00GB/s
960.0GB/s
Render Config
Compute Units
10
-
Shading Units
640
10752
TMUs
40
336
ROPs
16
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
64 MB
SM Count
-
84
Tensor Cores
-
336
RT Cores
-
84
Theoretical Performance
Pixel Rate
19.49 GPixel/s
293.1 GPixel/s
Texture Rate
48.72 GTexel/s
879.3 GTexel/s
FP16 (half)
1.559 TFLOPS
56.28 TFLOPS
FP32 (float)
1.559 TFLOPS
56.28 TFLOPS
FP64 (double)
97.44 GFLOPS
879.3 GFLOPS
Graphics Processor
GPU Name
Polaris 23
GB203
GPU Variant
Polaris 23 XT
GB203-400-A1
Architecture
GCN 4.0
Blackwell 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
2.2 billion
45.6 billion
Die Size
103 mm²
378 mm²
Board Design
TDP
50W
360W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
Power Connectors
None
1x 16-pin
Suggested PSU
-
750 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.4
Shader Model
6.4
6.8
CUDA
-
12.0
📊 Benchmark
3DMark Time Spy
-
33,116
3DMark Time Spy Extreme
-
16,627
3DMark Speed Way
-
9,296