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GPU Comparison
AMD Radeon HD 7950 vs AMD Radeon R9 280X
AMD Radeon HD 7950 vs AMD Radeon R9 280X
VS
AMD Radeon HD 7950
AMD Radeon R9 280X
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7950 's Advantages
Lower TDP (200W vs 250W)
AMD Radeon R9 280X 's Advantages
Released 1 years and 9 months late
Boost Clock1000MHz
Larger VRAM bandwidth (288.0GB/s vs 240.0GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7950
2.867 TFLOPS
Radeon R9 280X
+42%
4.096 TFLOPS
3DMark Time Spy
Radeon HD 7950
1917
Radeon R9 280X
+22%
2339
Radeon HD 7950
VS
Radeon R9 280X
Graphics Card
Jan 2012
Release Date
Oct 2013
Southern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
850 MHz
-
Boost Clock
1000 MHz
1250 MHz
Memory Clock
1500 MHz
Memory
3GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
240.0GB/s
Bandwidth
288.0GB/s
Render Config
-
SM Count
-
28
Compute Units
32
1792
Shading Units
2048
112
TMUs
128
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
768 KB
Theoretical Performance
25.60 GPixel/s
Pixel Rate
32.00 GPixel/s
89.60 GTexel/s
Texture Rate
128.0 GTexel/s
-
FP16 (half)
-
2.867 TFLOPS
FP32 (float)
4.096 TFLOPS
716.8 GFLOPS
FP64 (double)
1024 GFLOPS
Graphics Processor
Tahiti
GPU Name
Tahiti
Tahiti PRO (215-0821056)
GPU Variant
Tahiti XTL (215-0821065)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
4.313 billion
352 mm²
Die Size
352 mm²
Board Design
200W
TDP
250W
550 W
Suggested PSU
600 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
5.1
Shader Model
5.1
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