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
GPU
Xeon Phi 3120A
CORE STATE
Knights Corner
VRAM
6 GB
CLOCK SPEED
—
TDP
300 W
BUS WIDTH
384 bit
ARCHITECTURE
Knights
PROCESS
22 nm
LAUNCH DATE
2012
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
Phi 3120A
Core Specs
Shading Units
640
912
+42.5%
Shaders
640
912
+42.5%
TMUs
40
32
-20.0%
ROPs
16
0
-100.0%
Compute Units
10
—
Execution Units
—
57
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
1100 MHz
Memory Clock
1500 MHz
6 Gbps effective
1250 MHz
5 Gbps effective
Memory
Memory Size
2 GB
6 GB
VRAM (MB)
2,048
6,144
+200.0%
Memory Type
GDDR5
GDDR5
Memory Bus
64 bit
384 bit
Bandwidth
48.00 GB/s
240.0 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
—
Performance
Pixel Rate
19.49 GPixel/s
0 MPixel/s
Texture Rate
48.72 GTexel/s
35.20 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
2.006 TFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
300 W
TDP (W)
50
300
+500.0%
Suggested PSU
—
700 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Knights
GPU Name
Polaris 23
Knights Corner
Generation
Polaris Mobile
(M600)
Knights Corner
(x100)
Process Size
14 nm
22 nm
Transistors
2,200 million
5,000 million
Die Size
103 mm²
720 mm²
Foundry
GlobalFoundries
Intel
Density
21.4M / mm²
6.9M / mm²
API Support
DirectX
12 (12_0)
—
OpenGL
4.6
—
Vulkan
1.3
—
OpenCL
2.1
1.2
Shader Model
6.7
5.0
Physical
Slot Width
IGP
Dual-slot
Length
—
248 mm
9.8 inches
Outputs
Portable Device Dependent
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Launch Price
—
1,695 USD
Production
End-of-life
End-of-life
Predecessor
Gem System
Knights Ferry
Successor
Navi Mobile
H3C Graphics