AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GTX 660 Rev. 2

VS

AMD Radeon HD 6870 1600SP Edition NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

640 additional rendering cores

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 1 years and 8 months late

Boost Clock1032MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (144.2GB/s vs 134.4GB/s)

Lower TDP (140W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +37%

2.72 TFLOPS

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon HD 6870 1600SP Edition

VS

GeForce GTX 660 Rev. 2

Graphics Card

Jan 2013

Release Date

Sep 2014

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1050 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

134.4GB/s

Bandwidth

144.2GB/s

Render Config

-

SM Count

-

20

Compute Units

-

1600

Shading Units

960

80

TMUs

80

32

ROPs

24

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

20.64 GPixel/s

68.00 GTexel/s

Texture Rate

82.56 GTexel/s

-

FP16 (half)

-

2.720 TFLOPS

FP32 (float)

1.981 TFLOPS

544.0 GFLOPS

FP64 (double)

82.56 GFLOPS

Graphics Processor

Cypress

GPU Name

GK104

Cypress XT (215-0735033)

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

3.54 billion

334 mm²

Die Size

294 mm²

Board Design

175W

TDP

140W

450 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

Related GPU Comparisons

1

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GT 430

2

AMD Radeon HD 6870 1600SP Edition vs AMD Radeon HD 8570 OEM

3

AMD Radeon HD 6870 1600SP Edition vs AMD Radeon R5 235 OEM

4

AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 4250

5

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce RTX 3080 12 GB

6

AMD Radeon HD 6870 1600SP Edition vs AMD Radeon HD 8870 OEM

7

AMD Radeon HD 6870 1600SP Edition vs AMD Radeon R7 240 OEM

8

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce RTX 3090 Ti

9

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GTX 1050

10

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce 9600 GT Mac Edition

Related News

1

NVIDIA Grace CPU Benchmark Results Released, Stunning Performance

2

Minisforum Launches UM890 Pro Mini PC with R9 8945HS and Dual USB4 Ports

3

Does the Apple A18 Neural Engine Boast Superior Performance? Computational Power May Surpass M4 Chip

4

AMD's Commitment to Pioneering Each Generation with Cutting-Edge Process Technology and Continuous Innovation in Design, Packaging, and Assembly

5

NVIDIA to Ramp Up Orders and Add New Suppliers to Meet Explosive Demand for Blackwell Products

6

NVIDIA Informs Brands of Reduced Supply for RTX 40 Series GPUs

7

Only 3 Weeks Left! AMD Zen5 Launching Soon

8

Ilya Departs OpenAI to Launch New Company Aiming at Superintelligence!

9

Comprehensive Overview of AMD Ryzen 9000 Zen5 Desktop CPUs

10

Intel May Increase Base Frequencies for Arrow Lake-S / H / HX, High-End Chips to Reach 3GHz or Higher