AMD Radeon HD 6850 vs ATI Radeon HD 5850

Table of Contents

Graphics Processor

GPU model Barts Cypress
GPU variant Barts PRO (215-0798006) Cypress PRO (215-0735043)
Architecture TeraScale 2 TeraScale 2
Foundry TSMC TSMC
Manufacturing process 40 nm 40 nm
Number of transistors 1,700 million 2,154 million
Die size 255 mm² 334 mm²

Graphics Card

Release date Oct 21st, 2010 Sep 30th, 2009
Generation Northern Islands Evergreen
Production End-of-life End-of-life
Launch price 179 USD 299 USD
Interface PCIe 2.0 x16 PCIe 2.0 x16
Reviews 105 in our database 101 in our database
Predecessor Evergreen Radeon R700
Successor Southern Islands Northern Islands

Clocks

GPU clock 775 MHz 725 MHz
Memory clock 1000 MHz 4 Gbps effective 1000 MHz 4 Gbps effective

Memory Configuration

Memory size 1024 MB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 256 bit
Bandwidth 128.0 GB/s 128.0 GB/s

Render Configuration

Shading units 960 1440
TMUs 48 72
ROPs 32 32
Compute units 12 18
Cache L1 8 KB (per CU) 8 KB (per CU)
Cache L2 512 KB 512 KB

Performance

Pixel rate 24.80 GPixel/s 23.20 GPixel/s
Texture rate 37.20 GTexel/s 52.20 GTexel/s
FP32 (float) performance 1,488 GFLOPS 2.088 TFLOPS
FP64 (double) performance 417.6 GFLOPS (1:5)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 198 mm 7.8 inches 241 mm 9.5 inches
TDP 127 W 151 W
Suggested PSU 300 W 450 W
Outputs 2x DVI1x HDMI2x mini-DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 1x 6-pin 2x 6-pin
Board number C223 C002-37

API Support & Features

DirectX 11.2 (11_0) 11.2 (11_0)
OpenGL 4.4 4.4
OpenCL 1.2 1.2
Vulkan
Shader model 5.0 5.0

Other Features

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