AMD Radeon R7 250X vs NVIDIA GeForce GT 420 OEM

VS

AMD Radeon R7 250X

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X 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 250X 's Advantages

Released 3 years and 5 months late

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

592 additional rendering cores

NVIDIA GeForce GT 420 OEM 's Advantages

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R7 250X +807%

1.216 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

Radeon R7 250X

VS

GeForce GT 420 OEM

Graphics Card

Feb 2014

Release Date

Sep 2010

Volcanic Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

28.80GB/s

Render Config

10

Compute Units

-

SM Count

1

640

Shading Units

48

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

15.20 GPixel/s

Pixel Rate

1.400 GPixel/s

38.00 GTexel/s

Texture Rate

2.800 GTexel/s

-

1216 GFLOPS

FP32 (float)

134.4 GFLOPS

76.00 GFLOPS

FP64 (double)

11.20 GFLOPS

Board Design

80W

TDP

50W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

GF108

Cape Verde XT

GPU Variant

GF108-200-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.585 billion

123 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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