GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
ION 2
CORE STATE
GT218S
VRAM
System Shared
CLOCK SPEED
—
TDP
20 W
BUS WIDTH
System Shared
ARCHITECTURE
Tesla 2.0
PROCESS
40 nm
LAUNCH DATE
2008
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
ION 2
Core Specs
Shading Units
640
16
-97.5%
Shaders
640
16
-97.5%
TMUs
40
8
-80.0%
ROPs
16
4
-75.0%
Compute Units
10
—
SM Count
—
1
Clocks
GPU Clock
1295 MHz
500 MHz
Shader Clock
—
1070 MHz
Memory Clock
1500 MHz
6 Gbps effective
System Shared
Memory
Memory Size
4 GB
System Shared
VRAM (MB)
4,096
—
Memory Type
GDDR5
System Shared
Memory Bus
128 bit
System Shared
Bandwidth
96.00 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
32 KB
Performance
Pixel Rate
20.72 GPixel/s
2.000 GPixel/s
Texture Rate
51.80 GTexel/s
4.000 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
34.24 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
20 W
TDP (W)
50
20
-60.0%
Suggested PSU
250 W
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
Tesla 2.0
GPU Name
Polaris 23
GT218S
Generation
Polaris
(RX 600)
ION
Process Size
14 nm
40 nm
Transistors
2,200 million
260 million
Die Size
103 mm²
57 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
4.6M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_1)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.2
Shader Model
6.7
4.1
Physical
Slot Width
Single-slot
IGP
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—