AMD Radeon RX 455 OEM vs Intel Arc B770
GPU Specs Compare
Graphics Card
Release Date
Jun 2016
Jan 2026
Generation
Arctic Islands
Battlemage
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1625 MHz
2000 MHz
Base Clock
-
2100 MHz
Boost Clock
-
2400 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
128bit
256bit
Bandwidth
104.0GB/s
512.0GB/s
Render Config
Compute Units
12
-
Shading Units
768
4096
TMUs
48
256
ROPs
16
128
L1 Cache
16 KB (per CU)
-
L2 Cache
256 KB
16 MB
RT Cores
-
32
Theoretical Performance
Pixel Rate
16.80 GPixel/s
307.2 GPixel/s
Texture Rate
50.40 GTexel/s
614.4 GTexel/s
FP32 (float)
1.613 TFLOPS
19.66 TFLOPS
FP64 (double)
100.8 GFLOPS
2.458 TFLOPS
FP16 (half)
-
39.32 TFLOPS
Graphics Processor
GPU Name
Tobago
BMG-G31
GPU Variant
Tobago PRO(215-0875010)
-
Architecture
GCN 2.0
Xe2-HPG
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.08 billion
Unknown
Die Size
160 mm²
Unknown
Board Design
TDP
100W
225W
Suggested PSU
300 W
550 W
Outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.4
Shader Model
6.3
6.6