NVIDIA GeForce GT 645 OEM vs ATI FireGL V8600

VS

NVIDIA GeForce GT 645 OEM

ATI FireGL V8600

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM 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 645 OEM 's Advantages

Released 4 years and 11 months late

Lower TDP (102W vs 159W)

ATI FireGL V8600 's Advantages

Larger VRAM bandwidth (111.1GB/s vs 91.87GB/s)

32 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +103%

0.894 TFLOPS

FireGL V8600

0.44 TFLOPS

GeForce GT 645 OEM

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

-

957 MHz

Memory Clock

868 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR4

192bit

Memory Bus

512bit

91.87GB/s

Bandwidth

111.1GB/s

Render Config

-

Compute Units

4

6

SM Count

-

288

Shading Units

320

48

TMUs

16

24

ROPs

16

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

11.01 GPixel/s

37.25 GTexel/s

Texture Rate

11.01 GTexel/s

-

894.0 GFLOPS

FP32 (float)

440.3 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

159W

300 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x DisplayPort 1x S-Video

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF114

GPU Name

R600

-

GPU Variant

R600 V8600

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.95 billion

Transistors

0.72 billion

332 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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