ATI Radeon HD 2900 XT vs AMD Radeon HD 8470 OEM

VS

ATI Radeon HD 2900 XT

AMD Radeon HD 8470 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1024MB VRAM Radeon HD 8470 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 25.60GB/s)

160 additional rendering cores

AMD Radeon HD 8470 OEM 's Advantages

Released 5 years and 8 months late

More VRAM (1024GB vs 512GB)

Lower TDP (35W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT +91%

0.476 TFLOPS

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon HD 2900 XT

VS

Radeon HD 8470 OEM

Graphics Card

May 2007

Release Date

Jan 2013

Radeon R600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

64bit

106.0GB/s

Bandwidth

25.60GB/s

Render Config

4

Compute Units

2

-

320

Shading Units

160

16

TMUs

8

16

ROPs

4

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

3.100 GPixel/s

11.89 GTexel/s

Texture Rate

6.200 GTexel/s

-

475.5 GFLOPS

FP32 (float)

248.0 GFLOPS

-

Board Design

215W

TDP

35W

550 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

Caicos

R600 XT (215RGMDKA13FG)

GPU Variant

Caicos XT (215-0804070)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.72 billion

Transistors

0.37 billion

420 mm²

Die Size

67 mm²

Graphics Features

10.0 (10_0)

DirectX

11.2 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.0

Shader Model

5.0

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