GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
Switch GPU 16nm
CORE STATE
GM20B
VRAM
4 GB
CLOCK SPEED
768 MHz
TDP
15 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
16 nm
LAUNCH DATE
2019
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
Switch GPU 16nm
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
—
384 MHz
Boost Clock
—
768 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1600 MHz
3.2 Gbps effective
Memory
Memory Size
4 GB
4 GB
VRAM (MB)
4,096
4,096
0.0%
Memory Type
GDDR5
DDR4
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
25.60 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
—
Performance
Pixel Rate
20.72 GPixel/s
12.29 GPixel/s
Texture Rate
51.80 GTexel/s
12.29 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
393.2 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
12.29 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
786.4 GFLOPS (2:1)
Power
TDP
50 W
15 W
TDP (W)
50
15
-70.0%
Suggested PSU
250 W
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Maxwell 2.0
GPU Name
Polaris 23
GM20B
Generation
Polaris
(RX 600)
Console GPU
(Nintendo)
Process Size
14 nm
16 nm
Transistors
2,200 million
2,000 million
Die Size
103 mm²
100 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
20.0M / 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
Single-slot
—
Length
—
239 mm
9.4 inches
Height
—
101 mm
4 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x USB Type-C
Bus Interface
PCIe 3.0 x8
—
Other
Launch Price
—
299 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—