NVIDIA GeForce 8800 GTS 320 vs ATI Radeon HD 4870

VS

NVIDIA GeForce 8800 GTS 320

ATI Radeon HD 4870

We compared two Desktop platform GPUs: 320MB VRAM GeForce 8800 GTS 320 and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 GTS 320 's Advantages

Lower TDP (143W vs 150W)

ATI Radeon HD 4870 's Advantages

Released 1 years and 4 months late

More VRAM (512GB vs 320GB)

Larger VRAM bandwidth (115.2GB/s vs 63.36GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 4870 +426%

1.2 TFLOPS

GeForce 8800 GTS 320

VS

Radeon HD 4870

Graphics Card

Feb 2007

Release Date

Jun 2008

GeForce 8

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

792 MHz

Memory Clock

900 MHz

Memory

320MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

320bit

Memory Bus

256bit

63.36GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

10

12

SM Count

-

96

Shading Units

800

24

TMUs

40

20

ROPs

16

-

L1 Cache

16 KB (per CU)

80 KB

L2 Cache

256 KB

-

Theoretical Performance

10.26 GPixel/s

Pixel Rate

12.00 GPixel/s

24.62 GTexel/s

Texture Rate

30.00 GTexel/s

-

228.1 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

143W

TDP

150W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

G80

GPU Name

RV770

G80-100-K0-A2

GPU Variant

RV770 XT (215-0669049)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

90 nm

Process Size

55 nm

0.681 billion

Transistors

0.956 billion

484 mm²

Die Size

256 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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