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 K4000
CORE STATE
GK106
VRAM
3 GB
CLOCK SPEED
—
TDP
80 W
BUS WIDTH
192 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
Quadro K4000
Core Specs
Shading Units
640
768
+20.0%
Shaders
640
768
+20.0%
TMUs
40
64
+60.0%
ROPs
16
24
+50.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
810 MHz
Memory Clock
1500 MHz
6 Gbps effective
1404 MHz
5.6 Gbps effective
Memory
Memory Size
4 GB
3 GB
VRAM (MB)
4,096
3,072
-25.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
192 bit
Bandwidth
96.00 GB/s
134.8 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
384 KB
Performance
Pixel Rate
20.72 GPixel/s
12.96 GPixel/s
Texture Rate
51.80 GTexel/s
51.84 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
1,244.2 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
51.84 GFLOPS (1:24)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
80 W
TDP (W)
50
80
+60.0%
Suggested PSU
250 W
250 W
Power Connectors
None
1x 6-pin
Architecture
Architecture
GCN 4.0
Kepler
GPU Name
Polaris 23
GK106
Generation
Polaris
(RX 600)
Quadro Kepler
(Kx000)
Process Size
14 nm
28 nm
Transistors
2,200 million
2,540 million
Die Size
103 mm²
221 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
11.5M / 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
Launch Price
—
1,269 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
Quadro Fermi
Successor
Vega
Quadro Maxwell