ATI Radeon HD 2900 XTX vs AMD Radeon R7 450 OEM

VS

ATI Radeon HD 2900 XTX

AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 2GB VRAM Radeon R7 450 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 72.00GB/s)

AMD Radeon R7 450 OEM 's Advantages

More VRAM (2GB vs 512GB)

192 additional rendering cores

Lower TDP (65W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R7 450 OEM +98%

0.947 TFLOPS

Radeon HD 2900 XTX

VS

Radeon R7 450 OEM

Graphics Card

Unknown

Release Date

Jun 2016

Radeon R600

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

72.00GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

16

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

14.80 GPixel/s

11.89 GTexel/s

Texture Rate

29.60 GTexel/s

-

475.5 GFLOPS

FP32 (float)

947.2 GFLOPS

-

FP64 (double)

59.20 GFLOPS

Board Design

240W

TDP

65W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 6-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

Cape Verde

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Cape Verde PRO2

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

1.5 billion

420 mm²

Die Size

123 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

4.0

Shader Model

6.5 (5.1)

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