GPU Comparison
RADEON
AMD Radeon RX 640 Mobile
CORE STATE
Polaris 23
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
64 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
VS
GEFORCE
GeForce GT 640 Rev. 2
CORE STATE
GK208
VRAM
1024 MB
CLOCK SPEED
—
TDP
49 W
BUS WIDTH
64 bit
ARCHITECTURE
Kepler 2.0
PROCESS
28 nm
LAUNCH DATE
2013
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
GT 640 Rev. 2
Core Specs
Shading Units
640
384
-40.0%
Shaders
640
384
-40.0%
TMUs
40
32
-20.0%
ROPs
16
8
-50.0%
Compute Units
10
—
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
1046 MHz
Memory Clock
1500 MHz
6 Gbps effective
1252 MHz
5 Gbps effective
Memory
Memory Size
2 GB
1024 MB
VRAM (MB)
2,048
1,024
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
64 bit
64 bit
Bandwidth
48.00 GB/s
40.06 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
19.49 GPixel/s
8.368 GPixel/s
Texture Rate
48.72 GTexel/s
33.47 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
803.3 GFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
33.47 GFLOPS (1:24)
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
49 W
TDP (W)
50
49
-2.0%
Suggested PSU
—
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Kepler 2.0
GPU Name
Polaris 23
GK208
Generation
Polaris Mobile
(M600)
GeForce 600
Process Size
14 nm
28 nm
Transistors
2,200 million
1,020 million
Die Size
103 mm²
87 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
11.7M / 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
—
3.5
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
IGP
Single-slot
Length
—
145 mm
5.7 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 1.4a1x VGA
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x8
Other
Launch Price
—
89 USD
Production
End-of-life
End-of-life
Predecessor
Gem System
GeForce 500
Successor
Navi Mobile
GeForce 700