AMD Radeon HD 7970 X2 vs AMD Radeon R5 340X OEM

VS

AMD Radeon HD 7970 X2

AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 2GB VRAM Radeon R5 340X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 16.00GB/s)

1664 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Released 2 years and 9 months late

Lower TDP (65W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +448%

3.789 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

Radeon HD 7970 X2

VS

Radeon R5 340X OEM

Graphics Card

Aug 2012

Release Date

May 2015

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

1375 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

16.00GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

384

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

7.200 GPixel/s

118.4 GTexel/s

Texture Rate

21.60 GTexel/s

-

3.789 TFLOPS

FP32 (float)

691.2 GFLOPS

947.2 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

500W

TDP

65W

900 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.2

3x 8-pin

Power Connectors

None

Graphics Processor

New Zealand

GPU Name

Oland

-

GPU Variant

Oland XT (215-0837000)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

0.95 billion

352 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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