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GPU Comparison
AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 3450 X2
AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 3450 X2
VS
AMD Radeon HD 6870 1600SP Edition
ATI Radeon HD 3450 X2
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 512MB VRAM Radeon HD 3450 X2 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 5 years and 1 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 8.000GB/s)
1560 additional rendering cores
ATI Radeon HD 3450 X2 's Advantages
Lower TDP (50W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 1600SP Edition
+5566%
2.72 TFLOPS
Radeon HD 3450 X2
0.048 TFLOPS
Radeon HD 6870 1600SP Edition
VS
Radeon HD 3450 X2
Graphics Card
Jan 2013
Release Date
Dec 2007
Northern Islands
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
500 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
134.4GB/s
Bandwidth
8.000GB/s
Render Config
-
SM Count
-
20
Compute Units
2
1600
Shading Units
40
80
TMUs
4
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
64 KB
Theoretical Performance
27.20 GPixel/s
Pixel Rate
2.400 GPixel/s
68.00 GTexel/s
Texture Rate
2.400 GTexel/s
-
FP16 (half)
-
2.720 TFLOPS
FP32 (float)
48.00 GFLOPS
544.0 GFLOPS
FP64 (double)
-
Graphics Processor
Cypress
GPU Name
RV620
Cypress XT (215-0735033)
GPU Variant
RV620 LE
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
2.154 billion
Transistors
0.181 billion
334 mm²
Die Size
67 mm²
Board Design
175W
TDP
50W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
2x DMS-59
2x 6-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
10.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
4.1
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