Radeon R9 280 vs Radeon RX 455 OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 2GB VRAM Radeon RX 455 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 280 's Advantages
Boost Clock933MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 104.0GB/s)
1024 additional rendering cores
Radeon RX 455 OEM 's Advantages
Released 2 years and 3 months late
Lower TDP (100W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 280
+107%
3344
Radeon RX 455 OEM
1613
Graphics Card
Mar 2014
Release Date
Jun 2016
Volcanic Islands
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
827 MHz
Base Clock
-
933 MHz
Boost Clock
-
1250 MHz
Memory Clock
1625 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
240.0GB/s
Bandwidth
104.0GB/s
Render Config
28
Compute Units
12
1792
Shading Units
768
112
TMUs
48
32
ROPs
16
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
256 KB
Theoretical Performance
29.86 GPixel/s
Pixel Rate
16.80 GPixel/s
104.5 GTexel/s
Texture Rate
50.40 GTexel/s
3.344 TFLOPS
FP32 (float)
1.613 TFLOPS
836.0 GFLOPS
FP64 (double)
100.8 GFLOPS
Board Design
200W
TDP
100W
550 W
Suggested PSU
300 W
1x DVI
2x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Tahiti
GPU Name
Tobago
Tahiti PRO3
(215-0821330)
GPU Variant
Tobago PRO
(215-0875010)
GCN 1.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
2.08 billion
352 mm²
Die Size
160 mm²
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.0
1.2
Vulkan
1.2
5.1
Shader Model
6.3
