Home GPU Comparison AMD Radeon HD 6970M Mac Edition vs AMD Radeon RX 580X Mobile

AMD Radeon HD 6970M Mac Edition vs AMD Radeon RX 580X Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 8GB VRAM Radeon RX 580X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Mac Edition 's Advantages
Lower TDP (75W vs 100W)
AMD Radeon RX 580X Mobile 's Advantages
Released 6 years and 8 months late
Boost Clock1077MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 115.2GB/s)
1344 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6970M Mac Edition
1.306 TFLOPS
Radeon RX 580X Mobile +280%
4.963 TFLOPS
VS

Graphics Card

Aug 2011
Release Date
Apr 2018
Vancouver
Generation
Mobility Radeon
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-B (3.0)

Clock Speeds

-
Base Clock
1000 MHz
-
Boost Clock
1077 MHz
900 MHz
Memory Clock
2000 MHz

Memory

2GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
115.2GB/s
Bandwidth
256.0GB/s

Render Config

12
Compute Units
36
-
-
-
960
Shading Units
2304
48
TMUs
144
32
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
2 MB
-
-
-

Theoretical Performance

21.76 GPixel/s
Pixel Rate
34.46 GPixel/s
32.64 GTexel/s
Texture Rate
155.1 GTexel/s
-
FP16 (half)
4.963 TFLOPS
1306 GFLOPS
FP32 (float)
4.963 TFLOPS
-
FP64 (double)
310.2 GFLOPS

Board Design

75W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None

Graphics Processor

Blackcomb
GPU Name
Polaris 20
Blackcomb XT (216-0811000)
GPU Variant
Polaris 20M XT
TeraScale 2
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
1.7 billion
Transistors
5.7 billion
212 mm²
Die Size
232 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2
-
-
-
5.0
Shader Model
6.4

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