AMD Radeon HD 6570 vs ATI Radeon HD 3870 Mac Edition

Table of Contents

Graphics Processor

GPU model Thames RV670
GPU variant Thames XTX RV670 XT (215-0708005)
Architecture TeraScale 2 TeraScale
Foundry TSMC TSMC
Manufacturing process 40 nm 55 nm
Number of transistors 716 million 666 million
Die size 104 mm² 192 mm²

Graphics Card

Release date Feb 7th, 2011 Jun 12th, 2008
Generation Northern Islands Radeon R600
Production End-of-life End-of-life
Interface PCIe 2.0 x16 PCIe 2.0 x16
Reviews 7 in our database 80 in our database
Predecessor Evergreen Radeon R500 PCIe
Successor Southern Islands Radeon R700

Clocks

GPU clock 650 MHz 777 MHz
Memory clock 500 MHz 1000 Mbps effective 1126 MHz 2.3 Gbps effective

Memory Configuration

Memory size 1024 MB 512 MB
Memory type GDDR3 GDDR4
Memory bus width 128 bit 256 bit
Bandwidth 16.00 GB/s 72.06 GB/s

Render Configuration

Shading units 480 320
TMUs 24 16
ROPs 8 16
Compute units 6 4
Cache L1 8 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 5.200 GPixel/s 12.43 GPixel/s
Texture rate 15.60 GTexel/s 12.43 GTexel/s
FP32 (float) performance 624.0 GFLOPS 497.3 GFLOPS
FP64 (double) performance 99.46 GFLOPS (1:5)

Dimensions & Outputs

Slot width Single-slot Single-slot
Length 168 mm 6.6 inches 241 mm 9.5 inches
TDP 44 W 106 W
Suggested PSU 200 W 300 W
Outputs 1x DVI1x HDMI1x VGA 2x DVI1x S-Video
Power connectors None 1x 6-pin
Board number C239

API Support & Features

DirectX 11.2 (11_0) 10.1 (10_1)
OpenGL 4.4 3.3 (full) 4.0 (partial)
OpenCL 1.2
Vulkan
Shader model 5.0 4.1

Other Features

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