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GPU Comparison
AMD Radeon R5 M320 vs AMD Radeon HD 7870M
AMD Radeon R5 M320 vs AMD Radeon HD 7870M
VS
AMD Radeon R5 M320
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AMD Radeon HD 7870M
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We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M320 and 2GB VRAM Radeon HD 7870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R5 M320 's Advantages
Released 3 years and 1 months late
Boost Clock855MHz
More VRAM (4GB vs 2GB)
AMD Radeon HD 7870M 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 16.00GB/s)
320 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R5 M320
0.547 TFLOPS
Radeon HD 7870M
+87%
1.024 TFLOPS
Radeon R5 M320
VS
Radeon HD 7870M
Graphics Card
May 2015
Release Date
Apr 2012
Gem System
Generation
London
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
780 MHz
Base Clock
-
855 MHz
Boost Clock
-
1000 MHz
Memory Clock
1000 MHz
Memory
4GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
16.00GB/s
Bandwidth
64.00GB/s
Render Config
5
Compute Units
10
-
-
-
320
Shading Units
640
20
TMUs
40
8
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
6.840 GPixel/s
Pixel Rate
12.80 GPixel/s
17.10 GTexel/s
Texture Rate
32.00 GTexel/s
-
-
-
547.2 GFLOPS
FP32 (float)
1024 GFLOPS
34.20 GFLOPS
FP64 (double)
64.00 GFLOPS
Board Design
Unknown
TDP
45W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-
Graphics Processor
Jet
GPU Name
Heathrow
Jet PRO (216-0856040)
GPU Variant
Heathrow XT (216-0835033)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.69 billion
Transistors
1.5 billion
56 mm²
Die Size
123 mm²
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
-
-
-
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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