AMD Radeon HD 6850 vs ATI Radeon HD 5550
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 512MB VRAM Radeon HD 5550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6850 's Advantages
Released 8 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (128.0GB/s vs 51.20GB/s)
640 additional rendering cores
ATI Radeon HD 5550 's Advantages
Lower TDP (39W vs 127W)
Score
Benchmark
FP32 (float)
Radeon HD 6850
+322%
1.488 TFLOPS
Radeon HD 5550
0.352 TFLOPS
Graphics Card
Oct 2010
Release Date
Feb 2010
Northern Islands
Generation
Evergreen
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1000 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
128.0GB/s
Bandwidth
51.20GB/s
Render Config
12
Compute Units
4
-
-
-
960
Shading Units
320
48
TMUs
16
32
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
24.80 GPixel/s
Pixel Rate
4.400 GPixel/s
37.20 GTexel/s
Texture Rate
8.800 GTexel/s
-
-
-
1488 GFLOPS
FP32 (float)
352.0 GFLOPS
-
-
-
Board Design
127W
TDP
39W
300 W
Suggested PSU
200 W
2x DVI
1x HDMI 1.3a
2x mini-DisplayPort 1.1
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
1x 6-pin
Power Connectors
None
Graphics Processor
Barts
GPU Name
Redwood
Barts PRO
(215-0798006)
GPU Variant
Redwood PRO2
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
0.627 billion
255 mm²
Die Size
104 mm²
Graphics Features
11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
5.0
