AMD Radeon R9 255 OEM vs NVIDIA GeForce 8800 GTS 320

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 320MB VRAM GeForce 8800 GTS 320 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 6 years and 10 months late

Boost Clock930MHz

More VRAM (2GB vs 320GB)

Larger VRAM bandwidth (73.60GB/s vs 63.36GB/s)

416 additional rendering cores

Lower TDP (65W vs 143W)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +317%

0.952 TFLOPS

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon R9 255 OEM

VS

GeForce 8800 GTS 320

Graphics Card

Dec 2013

Release Date

Feb 2007

Volcanic Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

792 MHz

Memory

2GB

Memory Size

320MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

320bit

73.60GB/s

Bandwidth

63.36GB/s

Render Config

8

Compute Units

-

SM Count

12

512

Shading Units

96

32

TMUs

24

16

ROPs

20

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

80 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

10.26 GPixel/s

29.76 GTexel/s

Texture Rate

24.62 GTexel/s

-

952.3 GFLOPS

FP32 (float)

228.1 GFLOPS

59.52 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

143W

250 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

G80

Cape Verde PRX

GPU Variant

G80-100-K0-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

1.5 billion

Transistors

0.681 billion

123 mm²

Die Size

484 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

1.2

Vulkan

N/A

-

CUDA

1.0

5.1

Shader Model

4.0

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