ATI Radeon HD 4770 vs NVIDIA GeForce 8500 GT

VS

ATI Radeon HD 4770

NVIDIA GeForce 8500 GT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 256MB VRAM GeForce 8500 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Released 2 years late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (51.20GB/s vs 12.80GB/s)

624 additional rendering cores

NVIDIA GeForce 8500 GT 's Advantages

Lower TDP (30W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 4770 +3210%

0.96 TFLOPS

GeForce 8500 GT

0.029 TFLOPS

Radeon HD 4770

VS

GeForce 8500 GT

Graphics Card

Apr 2009

Release Date

Apr 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

12.80GB/s

Render Config

8

Compute Units

-

SM Count

2

640

Shading Units

16

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

32 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

1.836 GPixel/s

24.00 GTexel/s

Texture Rate

3.672 GTexel/s

-

960.0 GFLOPS

FP32 (float)

29.38 GFLOPS

192.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

30W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

G86

RV740 XT (215-0727019)

GPU Variant

G86-300-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

0.826 billion

Transistors

0.21 billion

137 mm²

Die Size

127 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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