AMD Radeon HD 8490 OEM vs NVIDIA GeForce GT 420 OEM

VS

AMD Radeon HD 8490 OEM

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 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 HD 8490 OEM 's Advantages

Released 2 years and 10 months late

112 additional rendering cores

Lower TDP (35W vs 50W)

NVIDIA GeForce GT 420 OEM 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM +108%

0.28 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

Radeon HD 8490 OEM

VS

GeForce GT 420 OEM

Graphics Card

Jul 2013

Release Date

Sep 2010

Sea Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

28.80GB/s

Render Config

2

Compute Units

-

SM Count

1

160

Shading Units

48

8

TMUs

4

ROPs

4

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.500 GPixel/s

Pixel Rate

1.400 GPixel/s

7.000 GTexel/s

Texture Rate

2.800 GTexel/s

-

280.0 GFLOPS

FP32 (float)

134.4 GFLOPS

-

FP64 (double)

11.20 GFLOPS

Board Design

35W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Caicos

GPU Name

GF108

Caicos XTX

GPU Variant

GF108-200-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

0.585 billion

67 mm²

Die Size

116 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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