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GPU Comparison
AMD Radeon R5 M255 vs AMD Radeon HD 7950M
AMD Radeon R5 M255 vs AMD Radeon HD 7950M
VS
AMD Radeon R5 M255
AMD Radeon HD 7950M
We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 2GB VRAM Radeon HD 7950M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R5 M255 's Advantages
Released 2 years and 6 months late
Boost Clock940MHz
AMD Radeon HD 7950M 's Advantages
Larger VRAM bandwidth (128.0GB/s vs 32.00GB/s)
896 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R5 M255
0.721 TFLOPS
Radeon HD 7950M
+148%
1.792 TFLOPS
Radeon R5 M255
VS
Radeon HD 7950M
Graphics Card
Oct 2014
Release Date
Apr 2012
Gem System
Generation
London
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)
Clock Speeds
925 MHz
Base Clock
-
940 MHz
Boost Clock
-
1000 MHz
Memory Clock
1000 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
128.0GB/s
Render Config
-
SM Count
-
6
Compute Units
20
384
Shading Units
1280
24
TMUs
80
8
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
Theoretical Performance
7.520 GPixel/s
Pixel Rate
22.40 GPixel/s
22.56 GTexel/s
Texture Rate
56.00 GTexel/s
721.9 GFLOPS
FP16 (half)
-
721.9 GFLOPS
FP32 (float)
1.792 TFLOPS
45.12 GFLOPS
FP64 (double)
-
Graphics Processor
Topaz
GPU Name
Wimbledon
Topaz PRO (216-0858030)
GPU Variant
Wimbledon PRO
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
2.8 billion
125 mm²
Die Size
212 mm²
Board Design
Unknown
TDP
75W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.2.170
Vulkan
1.2
-
CUDA
-
6.5
Shader Model
5.1
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3
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6
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7
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8
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9
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10
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