NVIDIA GeForce 8800 GTS 320 vs ATI Radeon HD 4850 X2

VS

NVIDIA GeForce 8800 GTS 320

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 320MB VRAM GeForce 8800 GTS 320 and 512MB VRAM Radeon HD 4850 X2 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 250W)

ATI Radeon HD 4850 X2 's Advantages

Released 1 years and 9 months late

More VRAM (512GB vs 320GB)

Larger VRAM bandwidth (63.68GB/s vs 63.36GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 4850 X2 +338%

1 TFLOPS

GeForce 8800 GTS 320

VS

Radeon HD 4850 X2

Graphics Card

Feb 2007

Release Date

Nov 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

995 MHz

Memory

320MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

320bit

Memory Bus

256bit

63.36GB/s

Bandwidth

63.68GB/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

10.00 GPixel/s

24.62 GTexel/s

Texture Rate

25.00 GTexel/s

-

228.1 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Board Design

143W

TDP

250W

300 W

Suggested PSU

600 W

2x DVI 1x S-Video

Outputs

4x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

G80

GPU Name

R700

G80-100-K0-A2

GPU Variant

R700 PRO (215-0669065)

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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