Radeon R9 270 1024SP vs Radeon X1550
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 256MB VRAM Radeon X1550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 270 1024SP 's Advantages
Released 8 years and 2 months late
Boost Clock925MHz
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (153.6GB/s vs 12.80GB/s)
1024 additional rendering cores
Radeon X1550 's Advantages
Lower TDP (27W vs 150W)
Score
Graphics Card
Mar 2015
Release Date
Jan 2007
Volcanic Islands
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1200 MHz
Memory Clock
400 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
12.80GB/s
Render Config
16
Compute Units
-
1024
Shading Units
-
64
TMUs
4
32
ROPs
4
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
-
Theoretical Performance
29.60 GPixel/s
Pixel Rate
2.200 GPixel/s
59.20 GTexel/s
Texture Rate
2.200 GTexel/s
1.894 TFLOPS
FP32 (float)
-
118.4 GFLOPS
FP64 (double)
-
Board Design
150W
TDP
27W
450 W
Suggested PSU
200 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x VGA
1x S-Video
1x 6-pin
Power Connectors
None
Graphics Processor
Pitcairn
GPU Name
RV516
Pitcairn PRO
(215-0828062)
GPU Variant
-
GCN 1.0
Architecture
R500
TSMC
Foundry
UMC
28 nm
Process Size
80 nm
2.8 billion
Transistors
0.107 billion
212 mm²
Die Size
100 mm²
Graphics Features
12 (11_1)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
1.2
OpenCL
N/A
1.2
Vulkan
N/A
5.1
Shader Model
3.0
