NVIDIA GeForce GTX 660 Rev. 2 vs ATI FireGL V8650

VS

NVIDIA GeForce GTX 660 Rev. 2

ATI FireGL V8650

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 2GB VRAM FireGL V8650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 7 years and 1 months late

Boost Clock1032MHz

Larger VRAM bandwidth (144.2GB/s vs 111.1GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2 +350%

1.981 TFLOPS

FireGL V8650

0.44 TFLOPS

GeForce GTX 660 Rev. 2

VS

FireGL V8650

Graphics Card

Sep 2014

Release Date

Aug 2007

GeForce 600

Generation

FireGL

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

868 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR4

192bit

Memory Bus

512bit

144.2GB/s

Bandwidth

111.1GB/s

Render Config

-

Compute Units

4

-

960

Shading Units

320

80

TMUs

16

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

11.01 GPixel/s

82.56 GTexel/s

Texture Rate

11.01 GTexel/s

-

1.981 TFLOPS

FP32 (float)

440.3 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Board Design

140W

TDP

Unknown

300 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK104

GPU Name

R600

-

GPU Variant

R600 V8650 (215RGIDKA13FG)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

3.54 billion

Transistors

0.72 billion

294 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.0

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