AMD Radeon HD 6970M vs ATI Radeon HD 5970

Table of Contents

Graphics Processor

GPU model Blackcomb Hemlock
GPU variant Blackcomb XT (216-0811000) Hemlock XT (215-0735075)
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 212 mm² 334 mm²

Mobile graphics

Release date Jan 4th, 2011
Generation Vancouver (HD 6900M)
Production End-of-life
Interface MXM-B (3.0)
Predecessor Manhattan
Successor London

Clocks

GPU clock 680 MHz 725 MHz
Memory clock 900 MHz 3.6 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 115.2 GB/s 128.0 GB/s

Render Configuration

Shading units 960 1600
TMUs 48 80
ROPs 32 32
Compute units 12 20
Cache L1 8 KB (per CU) 8 KB (per CU)
Cache L2 512 KB 512 KB

Performance

Pixel rate 21.76 GPixel/s 23.20 GPixel/s
Texture rate 32.64 GTexel/s 58.00 GTexel/s
FP32 (float) performance 1,306 GFLOPS 2.320 TFLOPS
FP64 (double) performance 464.0 GFLOPS (1:5)

Dimensions & Outputs

Slot width MXM Module Dual-slot
TDP 75 W 294 W
Outputs No outputs 2x DVI1x mini-DisplayPort
Power connectors None 1x 6-pin + 1x 8-pin
Board number C296 C000-37
Length 311 mm 12.2 inches
Width 111 mm 4.4 inches
Height 40 mm 1.6 inches
Suggested PSU 600 W

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

Graphics Card

Release date Nov 18th, 2009
Generation Evergreen
Production End-of-life
Launch price 699 USD
Interface PCIe 2.0 x16
Reviews 74 in our database
Predecessor Radeon R700
Successor Northern Islands

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