AMD Radeon HD 7870 GHz Edition vs AMD Radeon HD 8870 OEM

VS

AMD Radeon HD 7870 GHz Edition

AMD Radeon HD 8870 OEM

Kami membandingkan dua GPU Platform Desktop: 2GB VRAM Radeon HD 7870 GHz Edition dan 2GB VRAM Radeon HD 8870 OEM untuk melihat GPU mana yang mempunyai prestasi lebih baik dalam spesifikasi utama, ujian penanda aras, penggunaan kuasa, dll.

Perbezaan Utama

AMD Radeon HD 8870 OEM Kelebihan

Dikeluarkan lewat 10 bulan

Skor

Penilaian

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

Radeon HD 7870 GHz Edition

VS

Radeon HD 8870 OEM

Kad Grafik

Mac 2012

Tarikh Keluaran

Jan 2013

Southern Islands

Generasi

Sea Islands

Desktop

Jenis

Desktop

PCIe 3.0 x16

Antaramuka Bas

PCIe 3.0 x16

Kelajuan Jam

-

1200 MHz

Jam Memori

1200 MHz

Memori

2GB

Saiz Memori

2GB

GDDR5

Jenis Memori

GDDR5

256bit

Bas Memori

256bit

153.6GB/s

Lebar Jalur

153.6GB/s

Konfigurasi Render

20

Unit Pengiraan

20

-

1280

Unit Shading

1280

80

TMUs

80

32

ROPs

32

-

16 KB (per CU)

Cache L1

16 KB (per CU)

512 KB

Cache L2

512 KB

-

Prestasi Teoretis

32.00 GPixel/s

Kadar Piksel

32.00 GPixel/s

80.00 GTexel/s

Kadar Tekstur

80.00 GTexel/s

-

2.560 TFLOPS

FP32 (apung)

2.560 TFLOPS

160.0 GFLOPS

FP64 (dua kali)

160.0 GFLOPS

Reka Bentuk Papan

175W

TDP

175W

450 W

PSU Dicadangkan

450 W

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

Output

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

2x 6-pin

Penyambung Kuasa

2x 6-pin

Pemproses Grafik

Pitcairn

Nama GPU

Pitcairn

Pitcairn XT (215-0828047)

Varian GPU

Pitcairn XT (215-0828047)

GCN 1.0

Seni Bina

GCN 1.0

TSMC

Pencetak

TSMC

28 nm

Saiz Proses

28 nm

2.8 bilion

Transistor

2.8 bilion

212 mm²

Saiz Die

212 mm²

Ciri-ciri Grafik

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Model Shader

5.1

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8

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9

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10

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