AMD Radeon HD 7850M vs ATI Radeon HD 5770 Mac Edition

Table of Contents

Graphics Processor

GPU model Heathrow Juniper
GPU variant Heathrow PRO Juniper XT (215-0754013)
Architecture GCN 1.0 TeraScale 2
Foundry TSMC TSMC
Manufacturing process 28 nm 40 nm
Number of transistors 1,500 million 1,040 million
Die size 123 mm² 166 mm²

Mobile graphics

Release date Apr 24th, 2012
Generation London (HD 7800M)
Production End-of-life
Interface PCIe 3.0 x16
Predecessor Vancouver
Successor Solar System

Clocks

GPU clock 675 MHz 850 MHz
Memory clock 1000 MHz 4 Gbps effective 1195 MHz 4.8 Gbps effective

Memory Configuration

Memory size 2 GB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 64.00 GB/s 76.48 GB/s

Render Configuration

Shading units 640 800
TMUs 40 40
ROPs 16 16
Compute units 10 10
Cache L1 16 KB (per CU) 8 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 10.80 GPixel/s 13.60 GPixel/s
Texture rate 27.00 GTexel/s 34.00 GTexel/s
FP32 (float) performance 864.0 GFLOPS 1,360 GFLOPS
FP64 (double) performance 54.00 GFLOPS (1:16)

Dimensions & Outputs

TDP 40 W 108 W
Outputs No outputs 1x DVI1x DisplayPort
Slot width Dual-slot
Length 208 mm 8.2 inches
Suggested PSU 300 W
Power connectors 1x 6-pin
Board number C016

API Support & Features

DirectX 12 (11_1) 11.2 (11_0)
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.2
Shader model 5.1 5.0

Other Features

Graphics Card

Release date Jul 4th, 2010
Generation Evergreen
Production End-of-life
Interface PCIe 2.0 x16
Reviews 142 in our database
Predecessor Radeon R700
Successor Northern Islands

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