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GPU Comparison
AMD Radeon R7 450 OEM vs AMD Radeon HD 7970 X2
AMD Radeon R7 450 OEM vs AMD Radeon HD 7970 X2
VS
AMD Radeon R7 450 OEM
AMD Radeon HD 7970 X2
We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R7 450 OEM 's Advantages
Released 3 years and 10 months late
Lower TDP (65W vs 500W)
AMD Radeon HD 7970 X2 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (264.0GB/s vs 72.00GB/s)
1536 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R7 450 OEM
0.947 TFLOPS
Radeon HD 7970 X2
+300%
3.789 TFLOPS
Radeon R7 450 OEM
VS
Radeon HD 7970 X2
Graphics Card
Jun 2016
Release Date
Aug 2012
Arctic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1125 MHz
Memory Clock
1375 MHz
Memory
2GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
384bit
72.00GB/s
Bandwidth
264.0GB/s
Render Config
-
SM Count
-
8
Compute Units
32
512
Shading Units
2048
32
TMUs
128
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
Theoretical Performance
14.80 GPixel/s
Pixel Rate
29.60 GPixel/s
29.60 GTexel/s
Texture Rate
118.4 GTexel/s
-
FP16 (half)
-
947.2 GFLOPS
FP32 (float)
3.789 TFLOPS
59.20 GFLOPS
FP64 (double)
947.2 GFLOPS
Graphics Processor
Cape Verde
GPU Name
New Zealand
Cape Verde PRO2
GPU Variant
-
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
4.313 billion
123 mm²
Die Size
352 mm²
Board Design
65W
TDP
500W
250 W
Suggested PSU
900 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
1.2
1.2.170
Vulkan
1.2
-
CUDA
-
6.5 (5.1)
Shader Model
5.1
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8
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9
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10
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