AMD Radeon R9 280X vs ATI Radeon X1550 PCI
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X 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 R9 280X 's Advantages
Released 6 years and 9 months late
Boost Clock1000MHz
More VRAM (3GB vs 256GB)
Larger VRAM bandwidth (288.0GB/s vs 4.256GB/s)
2048 additional rendering cores
ATI Radeon X1550 PCI 's Advantages
Lower TDP (27W vs 250W)
Score
Graphics Card
Oct 2013
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
850 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
266 MHz
Memory
3GB
Memory Size
256MB
GDDR5
Memory Type
DDR2
384bit
Memory Bus
64bit
288.0GB/s
Bandwidth
4.256GB/s
Render Config
32
Compute Units
-
-
-
-
2048
Shading Units
-
128
TMUs
4
32
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
768 KB
L2 Cache
-
-
-
-
Theoretical Performance
32.00 GPixel/s
Pixel Rate
1.808 GPixel/s
128.0 GTexel/s
Texture Rate
1.808 GTexel/s
-
-
-
4.096 TFLOPS
FP32 (float)
-
1024 GFLOPS
FP64 (double)
-
Board Design
250W
TDP
27W
600 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 + 1x 8-pin
Power Connectors
None
Graphics Processor
Tahiti
GPU Name
RV516
Tahiti XTL
(215-0821065)
GPU Variant
-
GCN 1.0
Architecture
R500
TSMC
Foundry
UMC
28 nm
Process Size
80 nm
4.313 billion
Transistors
0.107 billion
352 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
