NVIDIA GeForce 8800 GTS 320 vs ATI Radeon HD 4770

VS

NVIDIA GeForce 8800 GTS 320

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 320MB VRAM GeForce 8800 GTS 320 and 512MB VRAM Radeon HD 4770 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 51.20GB/s)

ATI Radeon HD 4770 's Advantages

Released 2 years and 2 months late

More VRAM (512GB vs 320GB)

544 additional rendering cores

Lower TDP (80W vs 143W)

Score

Benchmark

FP32 (float)

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 4770 +321%

0.96 TFLOPS

GeForce 8800 GTS 320

VS

Radeon HD 4770

Graphics Card

Feb 2007

Release Date

Apr 2009

GeForce 8

Generation

Radeon R700

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

128bit

63.36GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

12

SM Count

-

96

Shading Units

640

24

TMUs

32

20

ROPs

16

-

L1 Cache

16 KB (per CU)

80 KB

L2 Cache

128 KB

-

Theoretical Performance

10.26 GPixel/s

Pixel Rate

12.00 GPixel/s

24.62 GTexel/s

Texture Rate

24.00 GTexel/s

-

228.1 GFLOPS

FP32 (float)

960.0 GFLOPS

-

FP64 (double)

192.0 GFLOPS

Board Design

143W

TDP

80W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

G80

GPU Name

RV740

G80-100-K0-A2

GPU Variant

RV740 XT (215-0727019)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

90 nm

Process Size

40 nm

0.681 billion

Transistors

0.826 billion

484 mm²

Die Size

137 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1 (1.0)

OpenCL

1.1

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

4.1

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