AMD Radeon RX 640 Mobile vs AMD Radeon RX 6500 XT
GPU · Specs Compare
Graphics Card
Release Date
May 2019
Jan 2022
Generation
Mobility Radeon
Navi II
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x4
Clock Speeds
Base Clock
1082 MHz
2310 MHz
Boost Clock
1218 MHz
2815 MHz
Memory Clock
1500 MHz
2248 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
64bit
64bit
Bandwidth
48.00GB/s
143.9GB/s
Render Config
Compute Units
10
16
Shading Units
640
1024
TMUs
40
64
ROPs
16
32
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
1024 KB
RT Cores
—
16
L3 Cache
—
16 MB
Theoretical Performance
Pixel Rate
19.49 GPixel/s
90.08 GPixel/s
Texture Rate
48.72 GTexel/s
180.2 GTexel/s
FP16 (half)
1.559 TFLOPS
11.53 TFLOPS
FP32 (float)
1.559 TFLOPS
5.765 TFLOPS
FP64 (double)
97.44 GFLOPS
360.3 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Navi 24
GPU Variant
Polaris 23 XT
Navi 24 XT(215-135000006)
Architecture
GCN 4.0
RDNA 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
6 nm
Transistors
2.2 billion
5.4 billion
Die Size
103 mm²
107 mm²
Board Design
TDP
50W
107W
Outputs
No outputs
1x HDMI 2.11x DisplayPort 1.4a
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.2
Vulkan
1.2
1.3
Shader Model
6.4
6.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.