AMD Radeon HD 7870 XT vs ATI Radeon HD 5670 640SP Edition

VS

AMD Radeon HD 7870 XT

ATI Radeon HD 5670 640SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 512MB VRAM Radeon HD 5670 640SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 2 years and 4 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.0GB/s vs 64.00GB/s)

896 additional rendering cores

ATI Radeon HD 5670 640SP Edition 's Advantages

Lower TDP (64W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +211%

2.995 TFLOPS

Radeon HD 5670 640SP Edition

0.96 TFLOPS

Radeon HD 7870 XT

VS

Radeon HD 5670 640SP Edition

Graphics Card

Nov 2012

Release Date

Jul 2010

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

64.00GB/s

Render Config

24

Compute Units

8

-

1536

Shading Units

640

96

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

6.000 GPixel/s

93.60 GTexel/s

Texture Rate

24.00 GTexel/s

-

2.995 TFLOPS

FP32 (float)

960.0 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

64W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Juniper

Tahiti LE (215-0821122)

GPU Variant

Juniper CE

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.04 billion

352 mm²

Die Size

166 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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