ATI Radeon HD 4550 vs ATI Radeon HD 4580
We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 4550 and 512MB VRAM Radeon HD 4580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4550 's Advantages
Lower TDP (25W vs 65W)
ATI Radeon HD 4580 's Advantages
Released 3 years and 2 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (22.18GB/s vs 10.48GB/s)
40 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4550
0.096 TFLOPS
Radeon HD 4580
+98%
0.191 TFLOPS
Graphics Card
Sep 2008
Release Date
Nov 2011
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
655 MHz
Memory Clock
693 MHz
Memory
256MB
Memory Size
512MB
DDR2
Memory Type
GDDR3
64bit
Memory Bus
128bit
10.48GB/s
Bandwidth
22.18GB/s
Render Config
1
Compute Units
3
-
-
-
80
Shading Units
120
8
TMUs
8
4
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
64 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
2.400 GPixel/s
Pixel Rate
3.184 GPixel/s
4.800 GTexel/s
Texture Rate
6.368 GTexel/s
-
-
-
96.00 GFLOPS
FP32 (float)
191.0 GFLOPS
-
-
-
Board Design
25W
TDP
65W
200 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.3a
1x DisplayPort 1.0
Outputs
2x DVI
1x S-Video
None
Power Connectors
None
Graphics Processor
RV710
GPU Name
RV635
RV710
(215-0725016)
GPU Variant
RV635 PRO
(215-0682008)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.242 billion
Transistors
0.378 billion
73 mm²
Die Size
135 mm²
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1
