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GPU Comparison
AMD Radeon HD 6970 X2 vs AMD Radeon HD 6450
AMD Radeon HD 6970 X2 vs AMD Radeon HD 6450
VS
AMD Radeon HD 6970 X2
AMD Radeon HD 6450
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970 X2 's Advantages
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (176.0GB/s vs 25.60GB/s)
1376 additional rendering cores
AMD Radeon HD 6450 's Advantages
Lower TDP (18W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6970 X2
+1251%
2.703 TFLOPS
Radeon HD 6450
0.2 TFLOPS
Radeon HD 6970 X2
VS
Radeon HD 6450
Graphics Card
Unknown
Release Date
Apr 2011
Northern Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1375 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
176.0GB/s
Bandwidth
25.60GB/s
Render Config
24
Compute Units
2
-
-
-
1536
Shading Units
160
96
TMUs
8
32
ROPs
4
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
28.16 GPixel/s
Pixel Rate
2.500 GPixel/s
84.48 GTexel/s
Texture Rate
5.000 GTexel/s
-
-
-
2.703 TFLOPS
FP32 (float)
200.0 GFLOPS
-
-
-
Board Design
375W
TDP
18W
750 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
3x 8-pin
Power Connectors
None
Graphics Processor
Antilles
GPU Name
Caicos
Antilles XT (215-0807027)
GPU Variant
Caicos PRO
TeraScale 3
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.64 billion
Transistors
0.37 billion
389 mm²
Die Size
67 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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