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GPU Comparison
AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 5450
AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 5450
VS
AMD Radeon HD 6870 1600SP Edition
ATI Radeon HD 5450
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 1600SP Edition 's Advantages
Released 2 years and 11 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 6.400GB/s)
1520 additional rendering cores
ATI Radeon HD 5450 's Advantages
Lower TDP (19W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 1600SP Edition
+2515%
2.72 TFLOPS
Radeon HD 5450
0.104 TFLOPS
Radeon HD 6870 1600SP Edition
VS
Radeon HD 5450
Graphics Card
Jan 2013
Release Date
Feb 2010
Northern Islands
Generation
Evergreen
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1050 MHz
Memory Clock
400 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
134.4GB/s
Bandwidth
6.400GB/s
Render Config
20
Compute Units
2
-
-
-
1600
Shading Units
80
80
TMUs
8
32
ROPs
4
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
27.20 GPixel/s
Pixel Rate
2.600 GPixel/s
68.00 GTexel/s
Texture Rate
5.200 GTexel/s
-
-
-
2.720 TFLOPS
FP32 (float)
104.0 GFLOPS
544.0 GFLOPS
FP64 (double)
-
Board Design
175W
TDP
19W
450 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
2x 6-pin
Power Connectors
None
Graphics Processor
Cypress
GPU Name
Cedar
Cypress XT (215-0735033)
GPU Variant
Cedar PRO
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.154 billion
Transistors
0.292 billion
334 mm²
Die Size
59 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
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