AMD Radeon HD 6490 vs NVIDIA GeForce GTX 980

VS

AMD Radeon HD 6490

NVIDIA GeForce GTX 980

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 4GB VRAM GeForce GTX 980 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 165W)

NVIDIA GeForce GTX 980 's Advantages

Released 3 years and 2 months late

Boost Clock1216MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.4GB/s vs 16.00GB/s)

1728 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

GeForce GTX 980 +1315%

4.981 TFLOPS

Radeon HD 6490

VS

GeForce GTX 980

Graphics Card

Jul 2011

Release Date

Sep 2014

Northern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1127 MHz

-

Boost Clock

1216 MHz

500 MHz

Memory Clock

1753 MHz

Memory

1024MB

Memory Size

4GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

224.4GB/s

Render Config

4

Compute Units

-

320

Shading Units

2048

16

TMUs

128

8

ROPs

64

-

8 KB (per CU)

L1 Cache

48 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

77.82 GPixel/s

8.800 GTexel/s

Texture Rate

155.6 GTexel/s

-

352.0 GFLOPS

FP32 (float)

4.981 TFLOPS

-

FP64 (double)

155.6 GFLOPS

Board Design

39W

TDP

165W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

None

Power Connectors

2x 6-pin

Graphics Processor

Redwood

GPU Name

GM204

Redwood LE

GPU Variant

GM204-400-A1

TeraScale 2

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

5.2 billion

104 mm²

Die Size

398 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.2

5.0

Shader Model

6.4

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