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GPU Comparison
AMD Radeon HD 7970 vs AMD Radeon 550X
AMD Radeon HD 7970 vs AMD Radeon 550X
VS
AMD Radeon HD 7970
AMD Radeon 550X
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7970 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (264.0GB/s vs 112.0GB/s)
1536 additional rendering cores
AMD Radeon 550X 's Advantages
Released 7 years and 3 months late
Boost Clock1218MHz
Lower TDP (50W vs 250W)
Score
Benchmark
FP32 (float)
Radeon HD 7970
+203%
3.789 TFLOPS
Radeon 550X
1.247 TFLOPS
Radeon HD 7970
VS
Radeon 550X
Graphics Card
Dec 2011
Release Date
Mar 2019
Southern Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1082 MHz
-
Boost Clock
1218 MHz
1375 MHz
Memory Clock
1750 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
264.0GB/s
Bandwidth
112.0GB/s
Render Config
-
SM Count
-
32
Compute Units
8
2048
Shading Units
512
128
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
512 KB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
19.49 GPixel/s
118.4 GTexel/s
Texture Rate
38.98 GTexel/s
-
FP16 (half)
1247 GFLOPS
3.789 TFLOPS
FP32 (float)
1247 GFLOPS
947.2 GFLOPS
FP64 (double)
77.95 GFLOPS
Graphics Processor
Tahiti
GPU Name
Lexa
Tahiti XT (215-0821060)
GPU Variant
Lexa PRO (215-0904018)
GCN 1.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
4.313 billion
Transistors
2.2 billion
352 mm²
Die Size
103 mm²
Board Design
250W
TDP
50W
600 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
6.4
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