AMD Radeon R5 340 OEM vs NVIDIA GeForce GT 640

VS

AMD Radeon R5 340 OEM

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R5 340 OEM and 2GB VRAM GeForce GT 640 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 11 months late

Boost Clock780MHz

Larger VRAM bandwidth (36.80GB/s vs 28.51GB/s)

NVIDIA GeForce GT 640 's Advantages

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon R5 340 OEM

0.599 TFLOPS

GeForce GT 640 +15%

0.693 TFLOPS

Radeon R5 340 OEM

VS

GeForce GT 640

Graphics Card

May 2015

Release Date

Jun 2012

Pirate Islands

Generation

GeForce 600

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

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

36.80GB/s

Bandwidth

28.51GB/s

Render Config

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.240 GPixel/s

Pixel Rate

7.216 GPixel/s

18.72 GTexel/s

Texture Rate

28.86 GTexel/s

-

599.0 GFLOPS

FP32 (float)

692.7 GFLOPS

37.44 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

None

Graphics Processor

Oland

GPU Name

GK107

Oland PRO (215-0837015)

GPU Variant

GK107-300-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.27 billion

77 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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