AMD Radeon R7 M445 vs ATI Radeon HD 4850 X2

Table of Contents

Graphics Processor

GPU model Meso R700
GPU variant Meso PRO (216-0864032) R700 PRO (215-0669065)
Architecture GCN 3.0 TeraScale
Foundry TSMC TSMC
Manufacturing process 28 nm 55 nm
Number of transistors 1,550 million 956 million
Die size 125 mm² 256 mm²

Mobile graphics

Release date May 15th, 2016
Generation Crystal System (R7 M400)
Production End-of-life
Interface PCIe 3.0 x8
Predecessor Solar System
Successor Mobility Radeon

Clocks

Base clock 780 MHz
Boost clock 920 MHz
Memory clock 1000 MHz 4 Gbps effective 995 MHz 1990 Mbps effective
GPU clock 625 MHz

Memory Configuration

Memory size 4 GB 512 MB
Memory type GDDR5 GDDR3
Memory bus width 64 bit 256 bit
Bandwidth 32.00 GB/s 63.68 GB/s

Render Configuration

Shading units 320 800
TMUs 20 40
ROPs 8 16
Compute units 5 10
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 128 KB 256 KB

Performance

Pixel rate 7.360 GPixel/s 10.00 GPixel/s
Texture rate 18.40 GTexel/s 25.00 GTexel/s
FP16 (half) performance 588.8 GFLOPS (1:1)
FP32 (float) performance 588.8 GFLOPS 1,000 GFLOPS
FP64 (double) performance 36.80 GFLOPS (1:16) 200.0 GFLOPS (1:5)

Dimensions & Outputs

Slot width IGP Dual-slot
TDP unknown 250 W
Outputs No outputs 4x DVI1x S-Video
Length 267 mm 10.5 inches
Suggested PSU 600 W
Power connectors 1x 6-pin + 1x 8-pin
Board number B501

API Support & Features

DirectX 12 (12_0) 10.1 (10_1)
OpenGL 4.6 3.3
OpenCL 2.0 1.1
Vulkan 1.2
Shader model 6.0 4.1

Other Features

Graphics Card

Release date Nov 7th, 2008
Generation Radeon R700
Production End-of-life
Launch price 420 USD
Interface PCIe 2.0 x16
Reviews 26 in our database
Predecessor Radeon R600
Successor Evergreen

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