ATI Radeon HD 3550 vs AMD Radeon HD 7870 GHz Edition
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3550 and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 3550 's Advantages
Lower TDP (30W vs 175W)
AMD Radeon HD 7870 GHz Edition 's Advantages
Released 3 years and 7 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (153.6GB/s vs 6.336GB/s)
1240 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 3550
0.048 TFLOPS
Radeon HD 7870 GHz Edition
+5233%
2.56 TFLOPS
Graphics Card
Aug 2008
Release Date
Mar 2012
Radeon R600
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
396 MHz
Memory Clock
1200 MHz
Memory
512MB
Memory Size
2GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
256bit
6.336GB/s
Bandwidth
153.6GB/s
Render Config
2
Compute Units
20
-
-
-
40
Shading Units
1280
4
TMUs
80
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
64 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
2.376 GPixel/s
Pixel Rate
32.00 GPixel/s
2.376 GTexel/s
Texture Rate
80.00 GTexel/s
-
-
-
47.52 GFLOPS
FP32 (float)
2.560 TFLOPS
-
FP64 (double)
160.0 GFLOPS
Board Design
30W
TDP
175W
200 W
Suggested PSU
450 W
2x DisplayPort
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin
Graphics Processor
RV620
GPU Name
Pitcairn
RV620 PRO
(215-0670006)
GPU Variant
Pitcairn XT
(215-0828047)
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.181 billion
Transistors
2.8 billion
67 mm²
Die Size
212 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
N/A
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
4.1
Shader Model
5.1
