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GPU Comparison
AMD Radeon RX 580G vs AMD Radeon RX 455 OEM
AMD Radeon RX 580G vs AMD Radeon RX 455 OEM
VS
AMD Radeon RX 580G
AMD Radeon RX 455 OEM
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580G and 2GB VRAM Radeon RX 455 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 580G 's Advantages
Released 2 years and 4 months late
Boost Clock1330MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 104.0GB/s)
1536 additional rendering cores
AMD Radeon RX 455 OEM 's Advantages
Lower TDP (100W vs 185W)
Score
Benchmark
FP32 (float)
Radeon RX 580G
+279%
6.129 TFLOPS
Radeon RX 455 OEM
1.613 TFLOPS
Radeon RX 580G
VS
Radeon RX 455 OEM
Graphics Card
Oct 2018
Release Date
Jun 2016
Polaris
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1257 MHz
Base Clock
-
1330 MHz
Boost Clock
-
2000 MHz
Memory Clock
1625 MHz
Memory
8GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
256.0GB/s
Bandwidth
104.0GB/s
Render Config
-
SM Count
-
36
Compute Units
12
2304
Shading Units
768
144
TMUs
48
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
256 KB
Theoretical Performance
42.56 GPixel/s
Pixel Rate
16.80 GPixel/s
191.5 GTexel/s
Texture Rate
50.40 GTexel/s
6.129 TFLOPS
FP16 (half)
-
6.129 TFLOPS
FP32 (float)
1.613 TFLOPS
383.0 GFLOPS
FP64 (double)
100.8 GFLOPS
Graphics Processor
Polaris 20
GPU Name
Tobago
Polaris 20 XTX (215-0910038)
GPU Variant
Tobago PRO (215-0875010)
GCN 4.0
Architecture
GCN 2.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
5.7 billion
Transistors
2.08 billion
232 mm²
Die Size
160 mm²
Board Design
185W
TDP
100W
450 W
Suggested PSU
300 W
1x HDMI 2.0b 3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 8-pin
Power Connectors
1x 6-pin
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2
Vulkan
1.2
-
CUDA
-
6.4
Shader Model
6.3
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