NVIDIA GeForce 8800 GTS 320 vs AMD Radeon HD 6450

VS

NVIDIA GeForce 8800 GTS 320

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 320MB VRAM GeForce 8800 GTS 320 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 8800 GTS 320 's Advantages

Larger VRAM bandwidth (63.36GB/s vs 25.60GB/s)

AMD Radeon HD 6450 's Advantages

Released 4 years and 2 months late

More VRAM (512GB vs 320GB)

64 additional rendering cores

Lower TDP (18W vs 143W)

Score

Benchmark

FP32 (float)

GeForce 8800 GTS 320 +14%

0.228 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce 8800 GTS 320

VS

Radeon HD 6450

Graphics Card

Feb 2007

Release Date

Apr 2011

GeForce 8

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

792 MHz

Memory Clock

800 MHz

Memory

320MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

320bit

Memory Bus

64bit

63.36GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

12

SM Count

-

96

Shading Units

160

24

TMUs

8

20

ROPs

4

-

L1 Cache

8 KB (per CU)

80 KB

L2 Cache

128 KB

-

Theoretical Performance

10.26 GPixel/s

Pixel Rate

2.500 GPixel/s

24.62 GTexel/s

Texture Rate

5.000 GTexel/s

-

228.1 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

143W

TDP

18W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

G80

GPU Name

Caicos

G80-100-K0-A2

GPU Variant

Caicos PRO

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

90 nm

Process Size

40 nm

0.681 billion

Transistors

0.37 billion

484 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1 (1.0)

OpenCL

1.2

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

5.0

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