GPU Comparison
RADEON
AMD Radeon RX 640 Mobile
CORE STATE
Polaris 23
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
64 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
VS
GEFORCE
Switch GPU 20nm
CORE STATE
GM20B
VRAM
4 GB
CLOCK SPEED
768 MHz
TDP
15 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
20 nm
LAUNCH DATE
2017
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Switch GPU 20nm
Core Specs
Shading Units
640
256
-60.0%
Shaders
640
256
-60.0%
TMUs
40
16
-60.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
Base Clock
1082 MHz
384 MHz
Boost Clock
1218 MHz
768 MHz
Memory Clock
1500 MHz
6 Gbps effective
1600 MHz
3.2 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
DDR4
Memory Bus
64 bit
64 bit
Bandwidth
48.00 GB/s
25.60 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
—
Performance
Pixel Rate
19.49 GPixel/s
12.29 GPixel/s
Texture Rate
48.72 GTexel/s
12.29 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
393.2 GFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
12.29 GFLOPS (1:32)
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
786.4 GFLOPS (2:1)
Power
TDP
50 W
15 W
TDP (W)
50
15
-70.0%
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Maxwell 2.0
GPU Name
Polaris 23
GM20B
Generation
Polaris Mobile
(M600)
Console GPU
(Nintendo)
Process Size
14 nm
20 nm
Transistors
2,200 million
2,000 million
Die Size
103 mm²
118 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
16.9M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
1.2
CUDA
—
5.3
Shader Model
6.7
6.0
Physical
Slot Width
IGP
—
Length
—
239 mm
9.4 inches
Height
—
101 mm
4 inches
Outputs
Portable Device Dependent
1x USB Type-C
Bus Interface
PCIe 3.0 x8
—
Other
Launch Price
—
299 USD
Production
End-of-life
End-of-life
Predecessor
Gem System
—
Successor
Navi Mobile
—