AMD Radeon R5 340 OEM vs ATI Radeon HD 3870

VS

AMD Radeon R5 340 OEM

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 340 OEM and 512MB VRAM Radeon HD 3870 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 7 years and 6 months late

Boost Clock780MHz

More VRAM (1024GB vs 512GB)

64 additional rendering cores

Lower TDP (65W vs 106W)

ATI Radeon HD 3870 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 36.80GB/s)

Score

Benchmark

FP32 (float)

Radeon R5 340 OEM +20%

0.599 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon R5 340 OEM

VS

Radeon HD 3870

Graphics Card

May 2015

Release Date

Nov 2007

Pirate Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

730 MHz

Base Clock

-

780 MHz

Boost Clock

-

1150 MHz

Memory Clock

1126 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

64bit

Memory Bus

256bit

36.80GB/s

Bandwidth

72.06GB/s

Render Config

6

Compute Units

4

-

384

Shading Units

320

24

TMUs

16

8

ROPs

16

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

12.43 GPixel/s

18.72 GTexel/s

Texture Rate

12.43 GTexel/s

-

599.0 GFLOPS

FP32 (float)

497.3 GFLOPS

37.44 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

65W

TDP

106W

250 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1.2

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Oland

GPU Name

RV670

Oland PRO (215-0837015)

GPU Variant

RV670 XT (215-0708005)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

0.95 billion

Transistors

0.666 billion

77 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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