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
GeForce 9400 GT
CORE STATE
G96C
VRAM
512 MB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
Tesla
PROCESS
55 nm
LAUNCH DATE
2008
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
9400 GT
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
GPU Clock
1295 MHz
550 MHz
Shader Clock
—
1400 MHz
Memory Clock
1500 MHz
6 Gbps effective
400 MHz
800 Mbps effective
Memory
Memory Size
4 GB
512 MB
VRAM (MB)
4,096
512
-87.5%
Memory Type
GDDR5
DDR2
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
12.80 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
32 KB
Performance
Pixel Rate
20.72 GPixel/s
2.200 GPixel/s
Texture Rate
51.80 GTexel/s
4.400 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
44.80 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
50 W
TDP (W)
50
50
0.0%
Suggested PSU
250 W
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Tesla
GPU Name
Polaris 23
G96C
Generation
Polaris
(RX 600)
GeForce 9
(9400)
Process Size
14 nm
55 nm
Transistors
2,200 million
314 million
Die Size
103 mm²
121 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
2.6M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_0)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.1
Shader Model
6.7
4.0
Physical
Slot Width
Single-slot
Single-slot
Length
—
168 mm
6.6 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x VGA1x S-Video
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 8
Successor
Vega
GeForce 200