AMD Radeon HD 6970M Mac Edition vs AMD Radeon Pro WX 4150 Mobile

Graphics Processor

GPU model Blackcomb Baffin
GPU variant Blackcomb XT (216-0811000) Baffin PRO
Architecture TeraScale 2 GCN 4.0
Foundry TSMC GlobalFoundries
Manufacturing process 40 nm 14 nm
Number of transistors 1,700 million 3,000 million
Die size 212 mm² 123 mm²

Mobile graphics

Release date Aug 25th, 2011 Mar 1st, 2017
Generation Vancouver (HD 6900M) Radeon Pro Mobile (WX x100)
Production End-of-life Active
Interface MXM-B (3.0) PCIe 3.0 x8
Predecessor Manhattan
Successor London

Clocks

GPU clock 680 MHz
Memory clock 900 MHz 3.6 Gbps effective 1500 MHz 6 Gbps effective
Base clock 1002 MHz
Boost clock 1053 MHz

Memory Configuration

Memory size 2 GB 4 GB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 128 bit
Bandwidth 115.2 GB/s 96.00 GB/s

Render Configuration

Shading units 960 896
TMUs 48 56
ROPs 32 16
Compute units 12 14
Cache L1 8 KB (per CU) 16 KB (per CU)
Cache L2 512 KB 1024 KB

Performance

Pixel rate 21.76 GPixel/s 16.85 GPixel/s
Texture rate 32.64 GTexel/s 58.97 GTexel/s
FP32 (float) performance 1,306 GFLOPS 1.887 TFLOPS
FP16 (half) performance 1.887 TFLOPS (1:1)
FP64 (double) performance 117.9 GFLOPS (1:16)

Dimensions & Outputs

Slot width MXM Module MXM Module
TDP 75 W 50 W
Outputs No outputs No outputs
Power connectors None None
Board number C296

API Support & Features

DirectX 11.2 (11_0) 12 (12_0)
OpenGL 4.4 4.6
OpenCL 1.2 2.1
Vulkan 1.2
Shader model 5.0 6.4

Other Features

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