AMD Radeon HD 7970 GHz Edition vs AMD Radeon HD 8990 OEM

Table of Contents

Graphics Processor

GPU model Tahiti Malta
GPU variant Tahiti XT2 (215-0821065) Malta XT (215-0849026)
Architecture GCN 1.0 GCN 1.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 4,313 million 4,313 million
Die size 352 mm² 365 mm²

Graphics Card

Release date Jun 22nd, 2012 Apr 24th, 2013
Generation Southern Islands Sea Islands
Production End-of-life End-of-life
Launch price 499 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 191 in our database
Predecessor Northern Islands Southern Islands
Successor Sea Islands Volcanic Islands

Clocks

Base clock 1000 MHz 950 MHz
Boost clock 1050 MHz 1000 MHz
Memory clock 1500 MHz 6 Gbps effective 1500 MHz 6 Gbps effective

Memory Configuration

Memory size 3 GB 3 GB
Memory type GDDR5 GDDR5
Memory bus width 384 bit 384 bit
Bandwidth 288.0 GB/s 288.0 GB/s

Render Configuration

Shading units 2048 2048
TMUs 128 128
ROPs 32 32
Compute units 32 32
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 768 KB 768 KB

Performance

Pixel rate 33.60 GPixel/s 32.00 GPixel/s
Texture rate 134.4 GTexel/s 128.0 GTexel/s
FP32 (float) performance 4.301 TFLOPS 4.096 TFLOPS
FP64 (double) performance 1,075 GFLOPS (1:4) 1,024 GFLOPS (1:4)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 275 mm 10.8 inches 307 mm 12.1 inches
Width 111 mm 4.4 inches
Height 38 mm 1.5 inches
TDP 300 W 375 W
Suggested PSU 700 W 750 W
Outputs 1x DVI1x HDMI2x mini-DisplayPort 1x DVI4x mini-DisplayPort
Power connectors 1x 6-pin + 1x 8-pin 2x 8-pin
Board number C386-37

API Support & Features

DirectX 12 (11_1) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2 1.2
Shader model 5.1 5.1

Other Features

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