NVIDIA GeForce GT 640 OEM Rebrand vs ATI FireGL V8600

VS

NVIDIA GeForce GT 640 OEM Rebrand

ATI FireGL V8600

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1024MB VRAM FireGL V8600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 4 years and 11 months late

More VRAM (1536GB vs 1024GB)

Lower TDP (75W vs 159W)

ATI FireGL V8600 's Advantages

Larger VRAM bandwidth (111.1GB/s vs 38.40GB/s)

176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

FireGL V8600 +6%

0.44 TFLOPS

GeForce GT 640 OEM Rebrand

VS

FireGL V8600

Graphics Card

Apr 2012

Release Date

May 2007

GeForce 600

Generation

FireGL

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

868 MHz

Memory

1536MB

Memory Size

1024MB

DDR3

Memory Type

GDDR4

192bit

Memory Bus

512bit

38.40GB/s

Bandwidth

111.1GB/s

Render Config

-

Compute Units

4

3

SM Count

-

144

Shading Units

320

24

TMUs

16

24

ROPs

16

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

11.01 GPixel/s

17.28 GTexel/s

Texture Rate

11.01 GTexel/s

-

414.7 GFLOPS

FP32 (float)

440.3 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

159W

250 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x DisplayPort 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF116

GPU Name

R600

GF116-150-A1

GPU Variant

R600 V8600

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.17 billion

Transistors

0.72 billion

238 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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