AMD Radeon RX 9070 XT vs ATI Radeon X1550 PCI
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 9070 XT and 256MB VRAM Radeon X1550 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 9070 XT 's Advantages
Released 18 years and 2 months late
Boost Clock2970MHz
More VRAM (16GB vs 256GB)
Larger VRAM bandwidth (644.6GB/s vs 4.256GB/s)
4096 additional rendering cores
ATI Radeon X1550 PCI 's Advantages
Lower TDP (27W vs 304W)
Score
Graphics Card
Mar 2025
Release Date
Jan 2007
Navi IV
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 5.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
1660 MHz
Base Clock
-
2970 MHz
Boost Clock
-
2518 MHz
Memory Clock
266 MHz
Memory
16GB
Memory Size
256MB
GDDR6
Memory Type
DDR2
256bit
Memory Bus
64bit
644.6GB/s
Bandwidth
4.256GB/s
Render Config
64
Compute Units
-
-
-
-
4096
Shading Units
-
256
TMUs
4
128
ROPs
4
128
Tensor Cores
-
64
RT Cores
-
128 KB per Array
L1 Cache
-
8 MB
L2 Cache
-
64 MB
L3 Cache
-
Theoretical Performance
380.2 GPixel/s
Pixel Rate
1.808 GPixel/s
760.3 GTexel/s
Texture Rate
1.808 GTexel/s
97.32 TFLOPS
FP16 (half)
-
48.66 TFLOPS
FP32 (float)
-
1.521 TFLOPS
FP64 (double)
-
Board Design
304W
TDP
27W
700 W
Suggested PSU
200 W
1x HDMI 2.1b
3x DisplayPort 2.1a
Outputs
1x DVI
1x VGA
1x S-Video
2x 8-pin
Power Connectors
None
Graphics Processor
Navi 48
GPU Name
RV516
Navi 48 XT
(215-176600315)
GPU Variant
-
RDNA 4.0
Architecture
R500
TSMC
Foundry
UMC
5 nm
Process Size
80 nm
53.9 billion
Transistors
0.107 billion
357 mm²
Die Size
100 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
2.2
OpenCL
N/A
1.3
Vulkan
N/A
-
-
-
6.8
Shader Model
3.0
