NVIDIA GeForce GT 640 vs AMD Radeon R7 250 OEM

VS

NVIDIA GeForce GT 640

AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM Radeon R7 250 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250 OEM 's Advantages

Released 1 years and 4 months late

Boost Clock1050MHz

Larger VRAM bandwidth (32.00GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon R7 250 OEM +16%

0.806 TFLOPS

GeForce GT 640

VS

Radeon R7 250 OEM

Graphics Card

Jun 2012

Release Date

Oct 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

891 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

8.400 GPixel/s

28.86 GTexel/s

Texture Rate

25.20 GTexel/s

-

692.7 GFLOPS

FP32 (float)

806.4 GFLOPS

28.86 GFLOPS

FP64 (double)

50.40 GFLOPS

Board Design

65W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

Oland

GK107-300-A2

GPU Variant

Oland XT (215-0837000)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

0.95 billion

118 mm²

Die Size

77 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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