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
GeForce MX450 30.5W 8Gbps
CORE STATE
TU117S
VRAM
2 GB
CLOCK SPEED
1275 MHz
TDP
31 W
BUS WIDTH
64 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2020
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
MX450 30.5W 8Gbps
Core Specs
Shading Units
640
896
+40.0%
Shaders
640
896
+40.0%
TMUs
40
56
+40.0%
ROPs
16
32
+100.0%
Compute Units
10
—
SM Count
—
14
Clocks
Base Clock
—
1035 MHz
Boost Clock
—
1275 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
2000 MHz
8 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
64.00 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
20.72 GPixel/s
40.80 GPixel/s
Texture Rate
51.80 GTexel/s
71.40 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
2.285 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
71.40 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
4.570 TFLOPS (2:1)
Power
TDP
50 W
31 W
TDP (W)
50
31
-38.0%
Suggested PSU
250 W
—
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Turing
GPU Name
Polaris 23
TU117S
Generation
Polaris
(RX 600)
GeForce MX
(4xx)
Process Size
14 nm
12 nm
Transistors
2,200 million
4,700 million
Die Size
103 mm²
200 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
23.5M / 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
—
7.5
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 x4
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—