NVIDIA GeForce GTX 490 vs AMD Radeon HD 6850 X2

VS

NVIDIA GeForce GTX 490 AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 2GB VRAM Radeon HD 6850 X2 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 134.4GB/s)

AMD Radeon HD 6850 X2 's Advantages

More VRAM (2GB vs 1GB)

480 additional rendering cores

Lower TDP (254W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon HD 6850 X2 +31%

1.536 TFLOPS

GeForce GTX 490

VS

Radeon HD 6850 X2

Graphics Card

Unknown

Release Date

Sep 2011

GeForce 400

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

854 MHz

Memory Clock

1050 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

164.0GB/s

Bandwidth

134.4GB/s

Render Config

15

SM Count

-

Compute Units

12

480

Shading Units

960

60

TMUs

48

ROPs

32

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

18.24 GPixel/s

Pixel Rate

25.60 GPixel/s

36.48 GTexel/s

Texture Rate

38.40 GTexel/s

-

FP16 (half)

-

1166 GFLOPS

FP32 (float)

1.536 TFLOPS

145.8 GFLOPS

FP64 (double)

-

Graphics Processor

GF100

GPU Name

Barts

GF100-375-A3

GPU Variant

Barts PRO (215-0798006)

Fermi

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3.1 billion

Transistors

1.7 billion

529 mm²

Die Size

255 mm²

Board Design

365W

TDP

254W

750 W

Suggested PSU

600 W

3x DVI 1x mini-DisplayPort

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

2x 8-pin

Power Connectors

2x 8-pin

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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