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 8400 GS PCI Rev. 2
CORE STATE
GT218S
VRAM
512 MB
CLOCK SPEED
—
TDP
40 W
BUS WIDTH
64 bit
ARCHITECTURE
Tesla 2.0
PROCESS
40 nm
LAUNCH DATE
2007
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 Mobile
8400 GS PCI Rev. 2
Core Specs
Shading Units
640
16
-97.5%
Shaders
640
16
-97.5%
TMUs
40
8
-80.0%
ROPs
16
4
-75.0%
Compute Units
10
—
SM Count
—
2
Clocks
Base Clock
1082 MHz
—
Boost Clock
1218 MHz
—
GPU Clock
—
520 MHz
Shader Clock
—
1230 MHz
Memory Clock
1500 MHz
6 Gbps effective
500 MHz
1000 Mbps effective
Memory
Memory Size
2 GB
512 MB
VRAM (MB)
2,048
512
-75.0%
Memory Type
GDDR5
DDR3
Memory Bus
64 bit
64 bit
Bandwidth
48.00 GB/s
8.000 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
32 KB
Performance
Pixel Rate
19.49 GPixel/s
2.080 GPixel/s
Texture Rate
48.72 GTexel/s
4.160 GTexel/s
FP32 (TFLOPS)
1.559 TFLOPS
39.36 GFLOPS
FP64 (TFLOPS)
97.44 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.559 TFLOPS (1:1)
—
Power
TDP
50 W
40 W
TDP (W)
50
40
-20.0%
Suggested PSU
—
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Tesla 2.0
GPU Name
Polaris 23
GT218S
Generation
Polaris Mobile
(M600)
GeForce 8
(8400)
Process Size
14 nm
40 nm
Transistors
2,200 million
260 million
Die Size
103 mm²
57 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
4.6M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_1)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.2
Shader Model
6.7
4.1
Physical
Slot Width
IGP
Single-slot
Outputs
Portable Device Dependent
1x DVI1x HDMI1x VGA
Bus Interface
PCIe 3.0 x8
PCI
Other
Production
End-of-life
End-of-life
Predecessor
Gem System
GeForce 7 PCIe
Successor
Navi Mobile
GeForce 9