NVIDIA GeForce GT 640 vs ATI FireGL V8650

VS

NVIDIA GeForce GT 640

ATI FireGL V8650

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM FireGL V8650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 4 years and 10 months late

64 additional rendering cores

ATI FireGL V8650 's Advantages

Larger VRAM bandwidth (111.1GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 +57%

0.693 TFLOPS

FireGL V8650

0.44 TFLOPS

GeForce GT 640

VS

FireGL V8650

Graphics Card

Jun 2012

Release Date

Aug 2007

GeForce 600

Generation

FireGL

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

891 MHz

Memory Clock

868 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR4

128bit

Memory Bus

512bit

28.51GB/s

Bandwidth

111.1GB/s

Render Config

-

Compute Units

4

-

384

Shading Units

320

32

TMUs

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

11.01 GPixel/s

28.86 GTexel/s

Texture Rate

11.01 GTexel/s

-

692.7 GFLOPS

FP32 (float)

440.3 GFLOPS

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

Unknown

250 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK107

GPU Name

R600

GK107-300-A2

GPU Variant

R600 V8650 (215RGIDKA13FG)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.27 billion

Transistors

0.72 billion

118 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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