AMD Radeon R7 340 OEM vs NVIDIA GeForce GT 420 OEM

VS

AMD Radeon R7 340 OEM

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 OEM and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 340 OEM 's Advantages

Released 4 years and 8 months late

Boost Clock780MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (64.00GB/s vs 28.80GB/s)

336 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 340 OEM +347%

0.599 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

Radeon R7 340 OEM

VS

GeForce GT 420 OEM

Graphics Card

May 2015

Release Date

Sep 2010

Pirate Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

730 MHz

Base Clock

-

780 MHz

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

28.80GB/s

Render Config

6

Compute Units

-

SM Count

1

384

Shading Units

48

24

TMUs

4

8

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

1.400 GPixel/s

18.72 GTexel/s

Texture Rate

2.800 GTexel/s

-

599.0 GFLOPS

FP32 (float)

134.4 GFLOPS

37.44 GFLOPS

FP64 (double)

11.20 GFLOPS

Board Design

50W

TDP

50W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Oland

GPU Name

GF108

-

GPU Variant

GF108-200-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.585 billion

77 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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