AMD Radeon RX 640 Mobile vs NVIDIA GeForce RTX 5070 Ti Mobile
GPU · Specs Compare
Graphics Card
Release Date
May 2019
Mar 2025
Generation
Mobility Radeon
GeForce 50 Mobile
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
1082 MHz
847 MHz
Boost Clock
1218 MHz
1447 MHz
Memory Clock
1500 MHz
1750 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR7
Memory Bus
64bit
192bit
Bandwidth
48.00GB/s
672.0GB/s
Render Config
Compute Units
10
—
Shading Units
640
5888
TMUs
40
184
ROPs
16
80
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
48 MB
SM Count
—
46
Tensor Cores
—
184
RT Cores
—
46
Theoretical Performance
Pixel Rate
19.49 GPixel/s
115.8 GPixel/s
Texture Rate
48.72 GTexel/s
266.2 GTexel/s
FP16 (half)
1.559 TFLOPS
17.04 TFLOPS
FP32 (float)
1.559 TFLOPS
17.04 TFLOPS
FP64 (double)
97.44 GFLOPS
266.2 GFLOPS
Graphics Processor
GPU Name
Polaris 23
GB205
GPU Variant
Polaris 23 XT
GB205
Architecture
GCN 4.0
Blackwell 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
2.2 billion
31.1 billion
Die Size
103 mm²
263 mm²
Board Design
TDP
50W
60-115W
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Suggested PSU
—
250 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
—
17,452
3DMark Time Spy Extreme
—
8,328
3DMark Speed Way
—
4,421
▲ Specs Compare
Data sourced from official specifications and benchmark tests.