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 P4
CORE STATE
GP104
VRAM
8 GB
CLOCK SPEED
1114 MHz
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
Pascal
PROCESS
16 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Tesla P4
Core Specs
Shading Units
640
2,560
+300.0%
Shaders
640
2,560
+300.0%
TMUs
40
160
+300.0%
ROPs
16
64
+300.0%
Compute Units
10
—
SM Count
—
20
Clocks
Base Clock
1082 MHz
886 MHz
Boost Clock
1218 MHz
1114 MHz
Memory Clock
1500 MHz
6 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
GDDR5
Memory Bus
64 bit
256 bit
Bandwidth
48.00 GB/s
192.3 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
19.49 GPixel/s
71.30 GPixel/s
Texture Rate
48.72 GTexel/s
178.2 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
5.704 TFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
178.2 GFLOPS (1:32)
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
89.12 GFLOPS (1:64)
Power
TDP
50 W
75 W
TDP (W)
50
75
+50.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Pascal
GPU Name
Polaris 23
GP104
Generation
Polaris Mobile
(M600)
Tesla Pascal
(Pxx)
Process Size
14 nm
16 nm
Transistors
2,200 million
7,200 million
Die Size
103 mm²
314 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
22.9M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
6.1
Shader Model
6.7
6.8
Physical
Slot Width
IGP
Single-slot
Length
—
168 mm
6.6 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Gem System
Tesla Maxwell
Successor
Navi Mobile
Tesla Volta