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
Tesla K20s
CORE STATE
GK110
VRAM
5 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
320 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Tesla K20s
Core Specs
Shading Units
640
2,496
+290.0%
Shaders
640
2,496
+290.0%
TMUs
40
208
+420.0%
ROPs
16
40
+150.0%
Compute Units
10
—
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
575 MHz
Memory Clock
1500 MHz
6 Gbps effective
1300 MHz
5.2 Gbps effective
Memory
Memory Size
2 GB
5 GB
VRAM (MB)
2,048
5,120
+150.0%
Memory Type
GDDR5
GDDR5
Memory Bus
64 bit
320 bit
Bandwidth
48.00 GB/s
208.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1280 KB
Performance
Pixel Rate
19.49 GPixel/s
29.90 GPixel/s
Texture Rate
48.72 GTexel/s
119.6 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
2.870 TFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
956.8 GFLOPS (1:3)
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
225 W
TDP (W)
50
225
+350.0%
Suggested PSU
—
550 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 23
GK110
Generation
Polaris Mobile
(M600)
Tesla Kepler
(Kxx)
Process Size
14 nm
28 nm
Transistors
2,200 million
7,080 million
Die Size
103 mm²
561 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.6M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.5
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
IGP
Dual-slot
Length
—
267 mm
10.5 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Launch Price
—
3,199 USD
Production
End-of-life
End-of-life
Predecessor
Gem System
Tesla Fermi
Successor
Navi Mobile
Tesla Maxwell