ATI Radeon HD 2900 XTX vs AMD Radeon HD 8450 OEM

VS

ATI Radeon HD 2900 XTX

AMD Radeon HD 8450 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 1024MB VRAM Radeon HD 8450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 10.67GB/s)

160 additional rendering cores

AMD Radeon HD 8450 OEM 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (18W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX +138%

0.476 TFLOPS

Radeon HD 8450 OEM

0.2 TFLOPS

Radeon HD 2900 XTX

VS

Radeon HD 8450 OEM

Graphics Card

Unknown

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

667 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

512bit

Memory Bus

64bit

106.0GB/s

Bandwidth

10.67GB/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

2.500 GPixel/s

11.89 GTexel/s

Texture Rate

5.000 GTexel/s

-

475.5 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

240W

TDP

18W

550 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

Caicos

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Caicos PRO-L

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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