AMD Radeon R9 290X2 vs AMD Radeon RX 455 OEM
GPU · Specs Compare
Graphics Card
Release Date
Jun 2014
Jun 2016
Generation
Volcanic Islands
Arctic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1350 MHz
1625 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
128bit
Bandwidth
345.6GB/s
104.0GB/s
Render Config
Compute Units
44
12
Shading Units
2816
768
TMUs
176
48
ROPs
64
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
256 KB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
16.80 GPixel/s
Texture Rate
176.0 GTexel/s
50.40 GTexel/s
FP32 (float)
5.632 TFLOPS
1.613 TFLOPS
FP64 (double)
704.0 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
Hawaii
Tobago
GPU Variant
Hawaii XT(215-0852000)
Tobago PRO(215-0875010)
Architecture
GCN 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
6.2 billion
2.08 billion
Die Size
438 mm²
160 mm²
Board Design
TDP
580W
100W
Suggested PSU
950 W
300 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
4x 8-pin
1x 6-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.