Home GPU Comparison ATI Radeon X1550 vs AMD Radeon R9 270X

ATI Radeon X1550 vs AMD Radeon R9 270X

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1550 and 2GB VRAM Radeon R9 270X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon X1550 's Advantages
Lower TDP (27W vs 180W)
AMD Radeon R9 270X 's Advantages
Released 6 years and 9 months late
Boost Clock1050MHz
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (179.2GB/s vs 12.80GB/s)
1280 additional rendering cores

Score

VS

Graphics Card

Jan 2007
Release Date
Oct 2013
Radeon R500 PCIe
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
1000 MHz
-
Boost Clock
1050 MHz
400 MHz
Memory Clock
1400 MHz

Memory

256MB
Memory Size
2GB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
256bit
12.80GB/s
Bandwidth
179.2GB/s

Render Config

-
Compute Units
20
-
-
-
-
Shading Units
1280
4
TMUs
80
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
-
L2 Cache
512 KB
-
-
-

Theoretical Performance

2.200 GPixel/s
Pixel Rate
33.60 GPixel/s
2.200 GTexel/s
Texture Rate
84.00 GTexel/s
-
-
-
-
FP32 (float)
2.688 TFLOPS
-
FP64 (double)
168.0 GFLOPS

Board Design

27W
TDP
180W
200 W
Suggested PSU
450 W
1x DVI 1x VGA 1x S-Video
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

RV516
GPU Name
Curacao
-
GPU Variant
Curacao XT (215-0848004)
R500
Architecture
GCN 1.0
UMC
Foundry
TSMC
80 nm
Process Size
28 nm
0.107 billion
Transistors
2.8 billion
100 mm²
Die Size
212 mm²

Graphics Features

9.0c (9_3)
DirectX
12 (11_1)
2.1
OpenGL
4.6
N/A
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
3.0
Shader Model
5.1

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