Report an Error

ATI Radeon HD 5550

Redwood
Graphics Processor
320
Cores
16
TMUs
8
ROPs
512 MB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
ATI Radeon HD 5550 Photo ATI Redwood Photo
The Radeon HD 5550 was a graphics card by ATI, launched in February 2010. Built on the 40 nm process, and based on the Redwood graphics processor, in its Redwood PRO2 variant, the card supports DirectX 11.2. The Redwood graphics processor is an average sized chip with a die area of 104 mm² and 627 million transistors. Unlike the fully unlocked Radeon HD 5730, which uses the same GPU but has all 400 shaders enabled, ATI has disabled some shading units on the Radeon HD 5550 to reach the product's target shader count. It features 320 shading units, 16 texture mapping units and 8 ROPs. ATI has placed 512 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 550 MHz, memory is running at 800 MHz.
Being a single-slot card, the ATI Radeon HD 5550 does not require any additional power connector, its power draw is rated at 39 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x VGA. Radeon HD 5550 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 165 mm in length, and features a single-slot cooling solution.

Graphics Processor

GPU Name
Redwood
GPU Variant
Redwood PRO2
Architecture
TeraScale 2
Process Size
40 nm
Transistors
627 million
Die Size
104 mm²

Graphics Card

Release Date
Feb 9th, 2010
Generation
Evergreen
(HD 5500)
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Relative Performance

29%
37%
46%
58%
68%
72%
89%
100%
Radeon HD 5550
117%
118%
129%
136%
138%
159%
169%
181%
187%
195%
201%
214%
226%
231%
238%
246%
281%
284%
289%
292%
293%
296%
298%
316%
332%
338%
350%
353%
356%
359%
361%
361%
368%
386%
393%
422%
430%
430%
448%
449%
465%
496%
512%
515%
524%
527%
545%
552%
556%
565%
592%
603%
613%
613%
615%
617%
666%
672%
688%
697%
700%
705%
707%
719%
721%
741%
798%
818%
839%
844%
853%
862%
882%
905%
926%
948%
961%
962%
1066%
1173%
1189%
1268%
1275%
1292%
1309%
1321%
1327%
1346%
1352%
1358%
1370%
1443%
1473%
1492%
1492%
1641%
1670%
1698%
1825%
2005%
2075%
2236%
2236%
2358%
2759%
2830%
3085%
3509%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
550 MHz
Memory Clock
800 MHz
3200 MHz effective

Memory

Memory Size
512 MB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
51.20 GB/s

Render Config

Shading Units
320
TMUs
16
ROPs
8
Compute Units
4

Theoretical Performance

Pixel Rate
4.400 GPixel/s
Texture Rate
8.800 GTexel/s
FP32 (float) performance
352.0 GFLOPS

Board Design

Slot Width
Single-slot
Length
6.5 inches
165 mm
TDP
39 W
Outputs
1x DVI
1x HDMI
1x VGA
Power Connectors
None
Board Number
C021,
C025,
C029

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Card Notes

Variant Memory: 1 GB
Variant Memory: 2 GB

Redwood GPU Notes

Graphics/Compute: GFX4
Display Core Engine: 4.0
Unified Video Decoder: 2.3

Retail boards based on this design (5)

Name GPU Clock Memory Clock Other Changes
HIS HD 5550 Silence 1 GB 550 MHz 800 MHz 1024 MB, DDR2, 7.28 inches/185 mm
Sapphire HD 5550 2 GB 550 MHz 400 MHz 2048 MB, 6.69 inches/170 mm
Sapphire HD 5550 DP 550 MHz 1000 MHz 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 5550 HDMI 550 MHz 1000 MHz
Sapphire HD 5550 Ultimate 550 MHz 400 MHz 1024 MB, DDR2