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
RTX A3000 Mobile 12 GB
CORE STATE
GA104
VRAM
12 GB
CLOCK SPEED
1170 MHz
TDP
70 W
BUS WIDTH
192 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
RTX A3000 Mobile 12 GB
Core Specs
Shading Units
640
4,096
+540.0%
Shaders
640
4,096
+540.0%
TMUs
40
128
+220.0%
ROPs
16
64
+300.0%
Compute Units
10
—
SM Count
—
32
Clocks
Base Clock
—
495 MHz
Boost Clock
—
1170 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
4 GB
12 GB
VRAM (MB)
4,096
12,288
+200.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
192 bit
Bandwidth
96.00 GB/s
336.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
20.72 GPixel/s
74.88 GPixel/s
Texture Rate
51.80 GTexel/s
149.8 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
9.585 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
149.8 GFLOPS (1:64)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
9.585 TFLOPS (1:1)
AI/RT
RT Cores
—
32
Tensor Cores
—
128
Power
TDP
50 W
70 W
TDP (W)
50
70
+40.0%
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Ampere
GPU Name
Polaris 23
GA104
Generation
Polaris
(RX 600)
Ampere-MW
(Ax000)
Process Size
14 nm
8 nm
Transistors
2,200 million
17,400 million
Die Size
103 mm²
392 mm²
Foundry
GlobalFoundries
Samsung
Density
21.4M / mm²
44.4M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
8.6
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
—
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Quadro Turing-M
Successor
Vega
Ada-MW