AMD Radeon R5 340 OEM vs AMD Radeon HD 7870 XT

VS

AMD Radeon R5 340 OEM

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 340 OEM and 2GB VRAM Radeon HD 7870 XT 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 2 years and 6 months late

Lower TDP (65W vs 185W)

AMD Radeon HD 7870 XT 's Advantages

Boost Clock has increased by 25% (975MHz vs 780MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 36.80GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 340 OEM

0.599 TFLOPS

Radeon HD 7870 XT +400%

2.995 TFLOPS

Radeon R5 340 OEM

VS

Radeon HD 7870 XT

Graphics Card

May 2015

Release Date

Nov 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

925 MHz

780 MHz

Boost Clock

975 MHz

1150 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

36.80GB/s

Bandwidth

192.0GB/s

Render Config

6

Compute Units

24

-

384

Shading Units

1536

24

TMUs

96

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

31.20 GPixel/s

18.72 GTexel/s

Texture Rate

93.60 GTexel/s

-

599.0 GFLOPS

FP32 (float)

2.995 TFLOPS

37.44 GFLOPS

FP64 (double)

748.8 GFLOPS

Board Design

65W

TDP

185W

250 W

Suggested PSU

450 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 LE (215-0821122)

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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