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
Quadro K620M
CORE STATE
GM108S
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
30 W
BUS WIDTH
64 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Quadro K620M
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
16
-60.0%
ROPs
16
8
-50.0%
Compute Units
10
—
Clocks
Base Clock
1082 MHz
1029 MHz
Boost Clock
1218 MHz
1124 MHz
Memory Clock
1500 MHz
6 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
DDR3
Memory Bus
64 bit
64 bit
Bandwidth
48.00 GB/s
16.02 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
512 KB
1024 KB
Performance
Pixel Rate
19.49 GPixel/s
8.992 GPixel/s
Texture Rate
48.72 GTexel/s
17.98 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
26.98 GFLOPS (1:32)
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
30 W
TDP (W)
50
30
-40.0%
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell
GPU Name
Polaris 23
GM108S
Generation
Polaris Mobile
(M600)
Quadro Kepler-M
(Kx200M)
Process Size
14 nm
28 nm
Transistors
2,200 million
1,020 million
Die Size
103 mm²
77 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
13.2M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.7
6.7 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
MXM-A (3.0)
Other
Production
End-of-life
End-of-life
Predecessor
Gem System
Quadro Fermi-M
Successor
Navi Mobile
Quadro Maxwell-M