AMD Radeon RX 7990 XTX vs AMD Radeon R7 450 OEM

VS

AMD Radeon RX 7990 XTX

AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 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

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock3599MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1152GB/s vs 72.00GB/s)

5632 additional rendering cores

AMD Radeon R7 450 OEM 's Advantages

Lower TDP (65W vs 405W)

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +9240%

88.45 TFLOPS

Radeon R7 450 OEM

0.947 TFLOPS

Radeon RX 7990 XTX

VS

Radeon R7 450 OEM

Graphics Card

Unknown

Release Date

Jun 2016

Navi III

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2500 MHz

Base Clock

-

3599 MHz

Boost Clock

-

3000 MHz

Memory Clock

1125 MHz

Memory

24GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

128bit

1152GB/s

Bandwidth

72.00GB/s

Render Config

96

Compute Units

8

-

6144

Shading Units

512

384

TMUs

32

192

ROPs

16

-

96

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

192 MB

L3 Cache

-

Theoretical Performance

691.0 GPixel/s

Pixel Rate

14.80 GPixel/s

1382 GTexel/s

Texture Rate

29.60 GTexel/s

176.9 TFLOPS

FP16 (half)

-

88.45 TFLOPS

FP32 (float)

947.2 GFLOPS

2.764 TFLOPS

FP64 (double)

59.20 GFLOPS

Board Design

405W

TDP

65W

800 W

Suggested PSU

250 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

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

3x 8-pin

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

Cape Verde

Navi 31 XTX+

GPU Variant

Cape Verde PRO2

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 billion

Transistors

1.5 billion

529 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

-

6.7

Shader Model

6.5 (5.1)

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