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VTX3D HD 7870 Black Edition

  • VX7870-2GBD5-2DHV3E
Graphics Processor
Tahiti
Cores
1536
TMUs
96
ROPs
32
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
256 bit

Graphics Processor

GPU Name
Tahiti
GPU Variant
Tahiti LE
(215-0821122)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
4,313 million
Die Size
352 mm²

Graphics Card

Release Date
Nov 19th, 2012
Nov 27th, 2012
Generation
Southern Islands
(HD 7800)
Predecessor
Northern Islands
Successor
Sea Islands
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

Base Clock
925 MHz
Boost Clock
975 MHz
Memory Clock
1500 MHz
6 Gbps effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
192.0 GB/s

Render Config

Shading Units
1536
TMUs
96
ROPs
32
Compute Units
24
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Theoretical Performance

Pixel Rate
31.20 GPixel/s
Texture Rate
93.60 GTexel/s
FP32 (float) performance
2.995 TFLOPS
FP64 (double) performance
748.8 GFLOPS (1:4)

Board Design

Slot Width
Dual-slot
TDP
185 W
Suggested PSU
450 W
Outputs
1x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
2x 6-pin
Board Number
C474

Graphics Features

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

Tahiti GPU Notes

Architecture Codename: Southern Islands
CLRX Version: GCN 1.0
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0

Exact Transistor Count: 4,312,711,873

Other retail boards based on this design (7)

Name GPU Clock Boost Clock Memory Clock Other Changes
Club 3D HD 7870 XT jokerCard 925 MHz 975 MHz 1500 MHz 268 mm/10.6 inches
Dataland PCS+ HD 7870 MYST. Edition 925 MHz 975 MHz 1500 MHz
PowerColor PCS+ HD 7870 EZ Edition 925 MHz 975 MHz 1500 MHz
PowerColor PCS+ HD 7870 MYST. Edition 925 MHz 975 MHz 1500 MHz
Sapphire HD 7870 XT w/ Boost 925 MHz 975 MHz 1500 MHz 275 mm/10.8 inches
VTX3D HD 7870 Black Edition 925 MHz 975 MHz 1500 MHz
XFX Double D HD 7870 925 MHz 1000 MHz 1250 MHz 241 mm/9.5 inches