Radeon RX 6800 XT vs Radeon HD 8550 OEM
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 1024MB VRAM Radeon HD 8550 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6800 XT 's Advantages
Released 7 years late
Boost Clock2250MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (512.0GB/s vs 25.60GB/s)
4128 additional rendering cores
Radeon HD 8550 OEM 's Advantages
Lower TDP (60W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 6800 XT
+3223%
20740
Radeon HD 8550 OEM
624
Graphics Card
Oct 2020
Release Date
Oct 2013
Navi II
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1825 MHz
Base Clock
-
2250 MHz
Boost Clock
-
2000 MHz
Memory Clock
800 MHz
Memory
16GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR3
256bit
Memory Bus
128bit
512.0GB/s
Bandwidth
25.60GB/s
Render Config
72
Compute Units
6
4608
Shading Units
480
288
TMUs
24
128
ROPs
8
72
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
256 KB
128 MB
L3 Cache
-
Theoretical Performance
288.0 GPixel/s
Pixel Rate
5.200 GPixel/s
648.0 GTexel/s
Texture Rate
15.60 GTexel/s
41.47 TFLOPS
FP16 (half)
-
20.74 TFLOPS
FP32 (float)
624.0 GFLOPS
1296 GFLOPS
FP64 (double)
-
Board Design
300W
TDP
60W
700 W
Suggested PSU
250 W
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 21
GPU Name
Turks
Navi 21 XT
(215-121000177)
GPU Variant
Turks PRO
(215-0803002)
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
26.8 billion
Transistors
0.716 billion
520 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
6.5
Shader Model
5.0
