AMD Radeon RX 640 Mobile vs NVIDIA RTX PRO 4000 Blackwell
GPU · Specs Compare
Graphics Card
Release Date
May 2019
Mar 2025
Generation
Mobility Radeon
Blackwell PRO W
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
1082 MHz
1230 MHz
Boost Clock
1218 MHz
2055 MHz
Memory Clock
1500 MHz
1750 MHz
Memory
Memory Size
2GB
24GB
Memory Type
GDDR5
GDDR7
Memory Bus
64bit
192bit
Bandwidth
48.00GB/s
672.0GB/s
Render Config
Compute Units
10
—
Shading Units
640
8960
TMUs
40
280
ROPs
16
96
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
48 MB
SM Count
—
70
Tensor Cores
—
280
RT Cores
—
70
Theoretical Performance
Pixel Rate
19.49 GPixel/s
197.3 GPixel/s
Texture Rate
48.72 GTexel/s
575.4 GTexel/s
FP16 (half)
1.559 TFLOPS
36.83 TFLOPS
FP32 (float)
1.559 TFLOPS
36.83 TFLOPS
FP64 (double)
97.44 GFLOPS
575.4 GFLOPS
Graphics Processor
GPU Name
Polaris 23
GB203
GPU Variant
Polaris 23 XT
—
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
140W
Outputs
No outputs
4x DisplayPort 2.1b
Power Connectors
None
1x 16-pin
Suggested PSU
—
300 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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.