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
CMP 40HX
CORE STATE
TU106
VRAM
8 GB
CLOCK SPEED
1650 MHz
TDP
185 W
BUS WIDTH
256 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
CMP 40HX
Core Specs
Shading Units
640
2,304
+260.0%
Shaders
640
2,304
+260.0%
TMUs
40
144
+260.0%
ROPs
16
64
+300.0%
Compute Units
10
—
SM Count
—
36
Clocks
Base Clock
—
1470 MHz
Boost Clock
—
1650 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
4 GB
8 GB
VRAM (MB)
4,096
8,192
+100.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
96.00 GB/s
448.0 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
20.72 GPixel/s
105.6 GPixel/s
Texture Rate
51.80 GTexel/s
237.6 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
7.603 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
237.6 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
15.21 TFLOPS (2:1)
AI/RT
RT Cores
—
36
Tensor Cores
—
288
Power
TDP
50 W
185 W
TDP (W)
50
185
+270.0%
Suggested PSU
250 W
450 W
Power Connectors
None
1x 8-pin
Architecture
Architecture
GCN 4.0
Turing
GPU Name
Polaris 23
TU106
Generation
Polaris
(RX 600)
Mining GPUs
Process Size
14 nm
12 nm
Transistors
2,200 million
10,800 million
Die Size
103 mm²
445 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
24.3M / 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
—
7.5
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
Dual-slot
Length
—
229 mm
9 inches
Height
—
111 mm
4.4 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 1.0 x4
Other
Launch Price
—
699 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—