NVIDIA GeForce GTX 490 vs AMD Radeon HD 7790

VS

NVIDIA GeForce GTX 490

AMD Radeon HD 7790

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 1024MB VRAM Radeon HD 7790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 490 's Advantages

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (164.0GB/s vs 96.00GB/s)

AMD Radeon HD 7790 's Advantages

416 additional rendering cores

Lower TDP (85W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon HD 7790 +53%

1.792 TFLOPS

GeForce GTX 490

VS

Radeon HD 7790

Graphics Card

Unknown

Release Date

Mar 2013

GeForce 400

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

854 MHz

Memory Clock

1500 MHz

Memory

1536MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

164.0GB/s

Bandwidth

96.00GB/s

Render Config

-

Compute Units

14

15

SM Count

-

480

Shading Units

896

60

TMUs

56

48

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

16.00 GPixel/s

36.48 GTexel/s

Texture Rate

56.00 GTexel/s

-

1166 GFLOPS

FP32 (float)

1.792 TFLOPS

145.8 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

365W

TDP

85W

750 W

Suggested PSU

250 W

3x DVI 1x mini-DisplayPort

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GF100

GPU Name

Bonaire

GF100-375-A3

GPU Variant

Bonaire XT (215-0839039)

Fermi

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

3.1 billion

Transistors

2.08 billion

529 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

2.0

CUDA

-

5.1

Shader Model

6.3

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