NVIDIA GeForce GT 645 OEM vs ATI Radeon X1950 GT AGP

VS

NVIDIA GeForce GT 645 OEM

ATI Radeon X1950 GT AGP

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 256MB VRAM Radeon X1950 GT AGP 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 5 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (91.87GB/s vs 38.40GB/s)

288 additional rendering cores

ATI Radeon X1950 GT AGP 's Advantages

Lower TDP (57W vs 102W)

Score

GeForce GT 645 OEM

VS

Radeon X1950 GT AGP

Graphics Card

Apr 2012

Release Date

Feb 2007

GeForce 600

Generation

Radeon R500 AGP

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

957 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

38.40GB/s

Render Config

-

6

SM Count

-

288

Shading Units

-

48

TMUs

12

24

ROPs

12

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

6.000 GPixel/s

37.25 GTexel/s

Texture Rate

6.000 GTexel/s

-

894.0 GFLOPS

FP32 (float)

-

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

57W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

-

Power Connectors

2x Molex

Graphics Processor

GF114

GPU Name

RV570

-

GPU Variant

RV570 XL

Fermi 2.0

Architecture

R500

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.95 billion

Transistors

0.33 billion

332 mm²

Die Size

230 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1 (full) 3.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

3.0

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