Club 3D HD 7870 XT jokerCard

CGAX-7876XT

Graphics Processor

Tahiti

Cores

1536

TMUs

ROPs

Memory Size

2 GB

Memory Type

GDDR5

Bus Width

256 bit

GPU

PCB Front

PCB Back

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

Density: 12.3M / mm²

Die Size: 352 mm²

Graphics Card

Release Date: Nov 19th, 2012

Generation: Southern Islands
(HD 7800)

Predecessor: Northern Islands

Successor: Sea Islands

Production: End-of-life

Bus Interface: PCIe 3.0 x16

TechPowerUp Review

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): 2.995 TFLOPS

FP64 (double): 748.8 GFLOPS (1:4)

Board Design

Slot Width: Dual-slot

Length: ~~267 mm~~
268 mm
~~10.5 inches~~
10.6 inches

TDP: 185 W

Suggested PSU: 450 W

Outputs: 1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2

Power Connectors: 2x 6-pin

Board Number: C474

Graphics Features

DirectX: 12 (11_1)

OpenGL: 4.6

OpenCL: 2.1 (1.2)

Vulkan: 1.2.170

Shader Model: 6.5 (5.1)

Tahiti GPU Notes

Generation: Southern Islands
Desktop Variant: New Zealand / Malta
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0
CLRX: GCN 1.0

Exact Transistor Count: 4,312,711,873

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 14.4

Windows Vista :
Catalyst Software Suite 13.12

Windows 7:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

Windows 8.1:
32-bit: Radeon Software: Crimson ReLive Edition 16.12.2 / 17.1.2
64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1

Windows 10:
32-bit: Radeon Software: Adrenalin Edition 18.9.3
64-bit: AMD Software: Adrenalin Edition 22.6.1

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