NVIDIA GeForce 9800 GX2 vs AMD Radeon HD 6450

VS

NVIDIA GeForce 9800 GX2

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GX2 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9800 GX2 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

AMD Radeon HD 6450 's Advantages

Released 3 years and 1 months late

32 additional rendering cores

Lower TDP (18W vs 197W)

Score

Benchmark

FP32 (float)

GeForce 9800 GX2 +92%

0.384 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce 9800 GX2

VS

Radeon HD 6450

Graphics Card

Mar 2008

Release Date

Apr 2011

GeForce 9

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

64bit

64.00GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

16

SM Count

-

128

Shading Units

160

64

TMUs

8

16

ROPs

4

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

2.500 GPixel/s

38.40 GTexel/s

Texture Rate

5.000 GTexel/s

-

384.0 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

197W

TDP

18W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

G92

GPU Name

Caicos

G92-450-A2

GPU Variant

Caicos PRO

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.754 billion

Transistors

0.37 billion

324 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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