NVIDIA GeForce GTX 660 OEM vs ATI FireGL V8650

VS

NVIDIA GeForce GTX 660 OEM

ATI FireGL V8650

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM 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 OEM 's Advantages

Released 5 years late

Boost Clock888MHz

Larger VRAM bandwidth (134.4GB/s vs 111.1GB/s)

832 additional rendering cores

ATI FireGL V8650 's Advantages

More VRAM (2GB vs 1536GB)

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM +365%

2.046 TFLOPS

FireGL V8650

0.44 TFLOPS

GeForce GTX 660 OEM

VS

FireGL V8650

Graphics Card

Aug 2012

Release Date

Aug 2007

GeForce 600

Generation

FireGL

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

868 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR4

192bit

Memory Bus

512bit

134.4GB/s

Bandwidth

111.1GB/s

Render Config

-

Compute Units

4

-

1152

Shading Units

320

96

TMUs

16

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

11.01 GPixel/s

85.25 GTexel/s

Texture Rate

11.01 GTexel/s

-

2.046 TFLOPS

FP32 (float)

440.3 GFLOPS

85.25 GFLOPS

FP64 (double)

-

Board Design

130W

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

GK104-200-KD-A2

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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