NVIDIA GeForce GTX 490 vs AMD Radeon HD 6930

VS

NVIDIA GeForce GTX 490

AMD Radeon HD 6930

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 1024MB VRAM Radeon HD 6930 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 153.6GB/s)

AMD Radeon HD 6930 's Advantages

800 additional rendering cores

Lower TDP (186W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon HD 6930 +64%

1.92 TFLOPS

GeForce GTX 490

VS

Radeon HD 6930

Graphics Card

Unknown

Release Date

Dec 2011

GeForce 400

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

854 MHz

Memory Clock

1200 MHz

Memory

1536MB

Memory Size

1024MB

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

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

24.00 GPixel/s

36.48 GTexel/s

Texture Rate

60.00 GTexel/s

-

1166 GFLOPS

FP32 (float)

1.920 TFLOPS

145.8 GFLOPS

FP64 (double)

480.0 GFLOPS

Board Design

365W

TDP

186W

750 W

Suggested PSU

450 W

3x DVI 1x mini-DisplayPort

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GF100

GPU Name

Cayman

GF100-375-A3

GPU Variant

Cayman CE (215-0807105)

Fermi

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3.1 billion

Transistors

2.64 billion

529 mm²

Die Size

389 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.0

CUDA

-

5.1

Shader Model

5.0

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