AMD Radeon RX 640 Mobile vs NVIDIA Tesla K40d
GPU Specs Compare
Graphics Card
Release Date
May 2019
Nov 2013
Generation
Mobility Radeon
Tesla Kepler
Type
Mobile
Professional
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1082 MHz
745 MHz
Boost Clock
1218 MHz
876 MHz
Memory Clock
1500 MHz
1502 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
64bit
384bit
Bandwidth
48.00GB/s
288.4GB/s
Render Config
Compute Units
10
-
Shading Units
640
2880
TMUs
40
240
ROPs
16
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
19.49 GPixel/s
52.56 GPixel/s
Texture Rate
48.72 GTexel/s
210.2 GTexel/s
FP16 (half)
1.559 TFLOPS
-
FP32 (float)
1.559 TFLOPS
5.046 TFLOPS
FP64 (double)
97.44 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Polaris 23
GK110B
GPU Variant
Polaris 23 XT
-
Architecture
GCN 4.0
Kepler
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
2.2 billion
7.08 billion
Die Size
103 mm²
561 mm²
Board Design
TDP
50W
245W
Outputs
No outputs
No outputs
Power Connectors
None
-
Suggested PSU
-
550 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.2.175
Shader Model
6.4
6.5 (5.1)
CUDA
-
3.5