AMD Radeon HD 7870 XT vs ATI Radeon HD 5630

VS

AMD Radeon HD 7870 XT

ATI Radeon HD 5630

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1024MB VRAM Radeon HD 5630 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 1 years and 9 months late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 12.48GB/s)

1216 additional rendering cores

ATI Radeon HD 5630 's Advantages

Lower TDP (39W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +619%

2.995 TFLOPS

Radeon HD 5630

0.416 TFLOPS

Radeon HD 7870 XT

VS

Radeon HD 5630

Graphics Card

Nov 2012

Release Date

Feb 2011

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

390 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

12.48GB/s

Render Config

24

Compute Units

4

-

1536

Shading Units

320

96

TMUs

16

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

5.200 GPixel/s

93.60 GTexel/s

Texture Rate

10.40 GTexel/s

-

2.995 TFLOPS

FP32 (float)

416.0 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

39W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Redwood

Tahiti LE (215-0821122)

GPU Variant

Redwood LE

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.627 billion

352 mm²

Die Size

104 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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