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GPU Comparison
ATI Radeon HD 4870 X2 vs ATI Radeon HD 5450 PCI
ATI Radeon HD 4870 X2 vs ATI Radeon HD 5450 PCI
VS
ATI Radeon HD 4870 X2
ATI Radeon HD 5450 PCI
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 512MB VRAM Radeon HD 5450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 X2 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (115.2GB/s vs 5.328GB/s)
720 additional rendering cores
ATI Radeon HD 5450 PCI 's Advantages
Released 1 years and 6 months late
Lower TDP (19W vs 286W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 X2
+1053%
1.2 TFLOPS
Radeon HD 5450 PCI
0.104 TFLOPS
Radeon HD 4870 X2
VS
Radeon HD 5450 PCI
Graphics Card
Aug 2008
Release Date
Feb 2010
Radeon R700
Generation
Evergreen
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCI
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
333 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
5.328GB/s
Render Config
-
SM Count
-
10
Compute Units
2
800
Shading Units
80
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
128 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
2.600 GPixel/s
30.00 GTexel/s
Texture Rate
5.200 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
104.0 GFLOPS
240.0 GFLOPS
FP64 (double)
-
Graphics Processor
R700
GPU Name
Cedar
R700 XT (215-0669045)
GPU Variant
Cedar PRO
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.956 billion
Transistors
0.292 billion
256 mm²
Die Size
59 mm²
Board Design
286W
TDP
19W
600 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.3a
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
5.0
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