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
Quadro K4200
CORE STATE
GK104
VRAM
4 GB
CLOCK SPEED
784 MHz
TDP
108 W
BUS WIDTH
256 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
Quadro K4200
Core Specs
Shading Units
640
1,344
+110.0%
Shaders
640
1,344
+110.0%
TMUs
40
112
+180.0%
ROPs
16
32
+100.0%
Compute Units
10
—
Clocks
Base Clock
—
771 MHz
Boost Clock
—
784 MHz
GPU Clock
1295 MHz
—
Memory Clock
1500 MHz
6 Gbps effective
1350 MHz
5.4 Gbps effective
Memory
Memory Size
4 GB
4 GB
VRAM (MB)
4,096
4,096
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
96.00 GB/s
172.8 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
20.72 GPixel/s
21.95 GPixel/s
Texture Rate
51.80 GTexel/s
87.81 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
2.107 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
87.81 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
108 W
TDP (W)
50
108
+116.0%
Suggested PSU
250 W
300 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 23
GK104
Generation
Polaris
(RX 600)
Quadro Kepler
(Kx200)
Process Size
14 nm
28 nm
Transistors
2,200 million
3,540 million
Die Size
103 mm²
294 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.0M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.175
OpenCL
2.1
3.0
CUDA
—
3.0
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
Single-slot
Single-slot
Length
—
241 mm
9.5 inches
Height
—
111 mm
4.4 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI2x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Quadro Fermi
Successor
Vega
Quadro Maxwell