NVIDIA GeForce GTX 490 vs AMD Radeon HD 7870 GHz Edition

VS

NVIDIA GeForce GTX 490

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 490 's Advantages

Larger VRAM bandwidth (164.0GB/s vs 153.6GB/s)

AMD Radeon HD 7870 GHz Edition 's Advantages

More VRAM (2GB vs 1536GB)

800 additional rendering cores

Lower TDP (175W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon HD 7870 GHz Edition +119%

2.56 TFLOPS

GeForce GTX 490

VS

Radeon HD 7870 GHz Edition

Graphics Card

Unknown

Release Date

Mar 2012

GeForce 400

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

854 MHz

Memory Clock

1200 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

164.0GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

15

SM Count

-

480

Shading Units

1280

60

TMUs

80

48

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

32.00 GPixel/s

36.48 GTexel/s

Texture Rate

80.00 GTexel/s

-

1166 GFLOPS

FP32 (float)

2.560 TFLOPS

145.8 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

365W

TDP

175W

750 W

Suggested PSU

450 W

3x DVI 1x mini-DisplayPort

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GF100

GPU Name

Pitcairn

GF100-375-A3

GPU Variant

Pitcairn XT (215-0828047)

Fermi

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

3.1 billion

Transistors

2.8 billion

529 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.0

CUDA

-

5.1

Shader Model

5.1

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