AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 490

VS

AMD Radeon HD 6870 X2

NVIDIA GeForce GTX 490

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 1536MB VRAM GeForce GTX 490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

640 additional rendering cores

Lower TDP (300W vs 365W)

NVIDIA GeForce GTX 490 's Advantages

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (164.0GB/s vs 134.4GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +72%

2.016 TFLOPS

GeForce GTX 490

1.166 TFLOPS

Radeon HD 6870 X2

VS

GeForce GTX 490

Graphics Card

Jul 2011

Release Date

Unknown

Northern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

854 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

164.0GB/s

Render Config

14

Compute Units

-

SM Count

15

1120

Shading Units

480

56

TMUs

60

32

ROPs

48

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

18.24 GPixel/s

50.40 GTexel/s

Texture Rate

36.48 GTexel/s

-

2.016 TFLOPS

FP32 (float)

1166 GFLOPS

-

FP64 (double)

145.8 GFLOPS

Board Design

300W

TDP

365W

700 W

Suggested PSU

750 W

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

Outputs

3x DVI 1x mini-DisplayPort

-

Power Connectors

2x 8-pin

Graphics Processor

Barts

GPU Name

GF100

Barts XT (215-0798000)

GPU Variant

GF100-375-A3

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

3.1 billion

255 mm²

Die Size

529 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.0

5.0

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon HD 6870 X2 vs NVIDIA RTX 4000 Ada Generation

2

AMD Radeon HD 6870 X2 vs Intel Arc A580

3

AMD Radeon HD 6870 X2 vs AMD Radeon HD 7450 OEM

4

AMD Radeon HD 6870 X2 vs NVIDIA CMP 170HX 10 GB

5

AMD Radeon HD 6870 X2 vs NVIDIA Quadro FX 540

6

AMD Radeon HD 6870 X2 vs AMD Radeon PRO W7600

7

AMD Radeon HD 6870 X2 vs NVIDIA RTX A1000

8

AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 780 6 GB

9

AMD Radeon HD 6870 X2 vs ATI Radeon X1050 AGP

10

AMD Radeon HD 6870 X2 vs NVIDIA GeForce 9800 GT

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU