Radeon RX 6900 XT vs Radeon X1550 AGP
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 256MB VRAM Radeon X1550 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6900 XT Advantages
Released 13 years and 9 months late
Boost Clock2250MHz
More VRAM (16GB vs 256GB)
Larger VRAM bandwidth (512.0GB/s vs 5.280GB/s)
5120 additional rendering cores
Radeon X1550 AGP Advantages
Lower TDP (27W vs 300W)
Score
Graphics Card
Oct 2020
Release Date
Jan 2007
Navi II
Generation
Radeon R500 AGP
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
AGP 8x
Clock Speeds
1825 MHz
Base Clock
-
2250 MHz
Boost Clock
-
2000 MHz
Memory Clock
330 MHz
Memory
16GB
Memory Size
256MB
GDDR6
Memory Type
DDR2
256bit
Memory Bus
64bit
512.0GB/s
Bandwidth
5.280GB/s
Render Config
80
Compute Units
-
5120
Shading Units
-
320
TMUs
4
128
ROPs
4
80
RT Cores
-
128 KB per Array
L1 Cache
-
4 MB
L2 Cache
-
128 MB
L3 Cache
-
Theoretical Performance
288.0 GPixel/s
Pixel Rate
2.400 GPixel/s
720.0 GTexel/s
Texture Rate
2.400 GTexel/s
46.08 TFLOPS
FP16 (half)
-
23.04 TFLOPS
FP32 (float)
-
1440 GFLOPS
FP64 (double)
-
Board Design
300W
TDP
27W
700 W
Suggested PSU
200 W
1x HDMI 2.1
2x DisplayPort 1.4a
1x USB Type-C
2x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x VGA
1x S-Video
1x VGA
1x S-Video
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 21
GPU Name
RV505
Navi 21 XTX
(215-121000167)
(215-121000167)
GPU Variant
-
RDNA 2.0
Architecture
R500
TSMC
Foundry
TSMC
7 nm
Process Size
90 nm
26.8 billion
Transistors
0.107 billion
520 mm²
Die Size
100 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
2.1
OpenCL
N/A
1.3
Vulkan
N/A
6.5
Shader Model
3.0
