AMD Radeon HD 7870 GHz Edition vs AMD Radeon Instinct MI25

Table of Contents

Graphics Processor

GPU model Pitcairn Vega 10
GPU variant Pitcairn XT (215-0828047) Vega 10 XT GL (215-0894124)
Architecture GCN 1.0 GCN 5.0
Foundry TSMC GlobalFoundries
Manufacturing process 28 nm 14 nm
Number of transistors 2,800 million 12,500 million
Die size 212 mm² 495 mm²

Graphics Card

Release date Mar 5th, 2012 Jun 27th, 2017
Generation Southern Islands Radeon Instinct
Production End-of-life Active
Launch price 349 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 95 in our database
Predecessor Northern Islands
Successor Sea Islands

Clocks

GPU clock 1000 MHz
Memory clock 1200 MHz 4.8 Gbps effective 852 MHz 1704 Mbps effective
Base clock 1400 MHz
Boost clock 1500 MHz

Memory Configuration

Memory size 2 GB 16 GB
Memory type GDDR5 HBM2
Memory bus width 256 bit 2048 bit
Bandwidth 153.6 GB/s 436.2 GB/s

Render Configuration

Shading units 1280 4096
TMUs 80 256
ROPs 32 64
Compute units 20 64
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 512 KB 4 MB

Performance

Pixel rate 32.00 GPixel/s 96.00 GPixel/s
Texture rate 80.00 GTexel/s 384.0 GTexel/s
FP32 (float) performance 2.560 TFLOPS 12.29 TFLOPS
FP64 (double) performance 160.0 GFLOPS (1:16) 768.0 GFLOPS (1:16)
FP16 (half) performance 24.58 TFLOPS (2:1)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 241 mm 9.5 inches 267 mm 10.5 inches
TDP 175 W 300 W
Suggested PSU 450 W 700 W
Outputs 1x DVI1x HDMI2x mini-DisplayPort No outputs
Power connectors 2x 6-pin 2x 8-pin
Board number C401-47 D051
Width 111 mm 4.4 inches

API Support & Features

DirectX 12 (11_1) 12 (12_1)
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.2 1.2
Shader model 5.1 6.4

Other Features

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