AMD Radeon HD 7950 Mac Edition vs AMD Radeon Sky 900

Table of Contents

Graphics Processor

GPU model Tahiti Tahiti
GPU variant Tahiti PRO (215-0821056) Orthrus
Architecture GCN 1.0 GCN 1.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 4,313 million 4,313 million
Die size 352 mm² 352 mm²

Graphics Card

Release date Mar 7th, 2013 Mar 27th, 2013
Generation Southern Islands Radeon Sky
Production End-of-life End-of-life
Launch price 449 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 118 in our database
Predecessor Northern Islands
Successor Sea Islands

Clocks

GPU clock 800 MHz
Memory clock 1250 MHz 5 Gbps effective 1250 MHz 5 Gbps effective
Base clock 825 MHz
Boost clock 950 MHz

Memory Configuration

Memory size 3 GB 3 GB
Memory type GDDR5 GDDR5
Memory bus width 384 bit 384 bit
Bandwidth 240.0 GB/s 240.0 GB/s

Render Configuration

Shading units 1792 1792
TMUs 112 112
ROPs 32 32
Compute units 28 28
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 768 KB 768 KB

Performance

Pixel rate 25.60 GPixel/s 30.40 GPixel/s
Texture rate 89.60 GTexel/s 106.4 GTexel/s
FP32 (float) performance 2.867 TFLOPS 3.405 TFLOPS
FP64 (double) performance 716.8 GFLOPS (1:4) 851.2 GFLOPS (1:4)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 279 mm 11 inches 305 mm 12 inches
TDP 200 W 300 W
Suggested PSU 550 W 700 W
Outputs 1x DVI1x HDMI2x mini-DisplayPort 1x DVI1x mini-DisplayPort
Power connectors 2x 6-pin 2x 8-pin
Board number C381 C476
Width 111 mm 4.4 inches

API Support & Features

DirectX 12 (11_1) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2 1.2
Shader model 5.1 5.1

Other Features

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