ATI Radeon HD 4550 vs ATI Radeon HD 4870 X2
We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 4550 and 1024MB VRAM Radeon HD 4870 X2 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 286W)
ATI Radeon HD 4870 X2 's Advantages
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (115.2GB/s vs 10.48GB/s)
720 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4550
0.096 TFLOPS
Radeon HD 4870 X2
+1150%
1.2 TFLOPS
Graphics Card
Sep 2008
Release Date
Aug 2008
Radeon R700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
655 MHz
Memory Clock
900 MHz
Memory
256MB
Memory Size
1024MB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
256bit
10.48GB/s
Bandwidth
115.2GB/s
Render Config
1
Compute Units
10
-
-
-
80
Shading Units
800
8
TMUs
40
4
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
64 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
2.400 GPixel/s
Pixel Rate
12.00 GPixel/s
4.800 GTexel/s
Texture Rate
30.00 GTexel/s
-
-
-
96.00 GFLOPS
FP32 (float)
1200 GFLOPS
-
FP64 (double)
240.0 GFLOPS
Board Design
25W
TDP
286W
200 W
Suggested PSU
600 W
1x DVI
1x HDMI 1.3a
1x DisplayPort 1.0
Outputs
2x DVI
1x S-Video
None
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
RV710
GPU Name
R700
RV710
(215-0725016)
GPU Variant
R700 XT
(215-0669045)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.242 billion
Transistors
0.956 billion
73 mm²
Die Size
256 mm²
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1
