AMD Radeon R5 340 OEM vs AMD Radeon HD 7950

VS

AMD Radeon R5 340 OEM

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 340 OEM and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 340 OEM 's Advantages

Released 3 years and 4 months late

Boost Clock780MHz

Lower TDP (65W vs 200W)

AMD Radeon HD 7950 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 36.80GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 340 OEM

0.599 TFLOPS

Radeon HD 7950 +378%

2.867 TFLOPS

Radeon R5 340 OEM

VS

Radeon HD 7950

Graphics Card

May 2015

Release Date

Jan 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

730 MHz

Base Clock

-

780 MHz

Boost Clock

-

1150 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

384bit

36.80GB/s

Bandwidth

240.0GB/s

Render Config

6

Compute Units

28

-

384

Shading Units

1792

24

TMUs

112

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

25.60 GPixel/s

18.72 GTexel/s

Texture Rate

89.60 GTexel/s

-

599.0 GFLOPS

FP32 (float)

2.867 TFLOPS

37.44 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

65W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x DisplayPort 1.2

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Oland

GPU Name

Tahiti

Oland PRO (215-0837015)

GPU Variant

Tahiti PRO (215-0821056)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

4.313 billion

77 mm²

Die Size

352 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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