ATI Radeon HD 5970 vs AMD Radeon HD 7870 XT

VS

ATI Radeon HD 5970

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

64 additional rendering cores

AMD Radeon HD 7870 XT 's Advantages

Released 3 years late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 128.0GB/s)

Lower TDP (185W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970

2.32 TFLOPS

Radeon HD 7870 XT +29%

2.995 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 7870 XT

Graphics Card

Nov 2009

Release Date

Nov 2012

Evergreen

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

1000 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

192.0GB/s

Render Config

20

Compute Units

24

-

1600

Shading Units

1536

80

TMUs

96

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

31.20 GPixel/s

58.00 GTexel/s

Texture Rate

93.60 GTexel/s

-

2.320 TFLOPS

FP32 (float)

2.995 TFLOPS

464.0 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

294W

TDP

185W

600 W

Suggested PSU

450 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hemlock

GPU Name

Tahiti

Hemlock XT (215-0735075)

GPU Variant

Tahiti LE (215-0821122)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

4.313 billion

334 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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