AMD Radeon VII vs AMD Radeon RX 6600 XT

VS

We compared two Desktop platform GPUs: 16GB VRAM Radeon VII and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon VII 's Advantages

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (1020GB/s vs 256.0GB/s)

1792 additional rendering cores

AMD Radeon RX 6600 XT 's Advantages

Released 2 years and 5 months late

Boost Clock has increased by 48% (2589MHz vs 1750MHz)

Lower TDP (160W vs 295W)

Score

Benchmark

FP32 (float)

Radeon VII +26%

13.44 TFLOPS

Radeon RX 6600 XT

10.6 TFLOPS

3DMark Time Spy

Radeon VII

9307

Radeon RX 6600 XT +2%

9578

Blender

Radeon VII

772

Radeon RX 6600 XT +53%

1187

Shadow of the Tomb Raider 2160p

Radeon VII +15%

44

Radeon RX 6600 XT

38

Shadow of the Tomb Raider 1440p

Radeon VII +13%

82

Radeon RX 6600 XT

72

Shadow of the Tomb Raider 1080p

Radeon VII

114

Radeon RX 6600 XT +4%

119

Battlefield 5 2160p

Radeon VII +12%

65

Radeon RX 6600 XT

58

Battlefield 5 1440p

Radeon VII +2%

114

Radeon RX 6600 XT

111

Battlefield 5 1080p

Radeon VII +6%

153

Radeon RX 6600 XT

144

GTA 5 2160p

Radeon VII +8%

66

Radeon RX 6600 XT

61

GTA 5 1440p

Radeon VII

62

Radeon RX 6600 XT +32%

82

GTA 5 1080p

Radeon VII

136

Radeon RX 6600 XT +9%

149

Radeon VII

VS

Radeon RX 6600 XT

Graphics Card

Feb 2019

Release Date

Jul 2021

Vega II

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1400 MHz

Base Clock

1968 MHz

1750 MHz

Boost Clock

2589 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

8GB

HBM2

Memory Type

GDDR6

4096bit

Memory Bus

128bit

1020GB/s

Bandwidth

256.0GB/s

Render Config

-

SM Count

-

60

Compute Units

32

3840

Shading Units

2048

240

TMUs

128

64

ROPs

64

-

Tensor Cores

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

4 MB

L2 Cache

2 MB

Theoretical Performance

112.0 GPixel/s

Pixel Rate

165.7 GPixel/s

420.0 GTexel/s

Texture Rate

331.4 GTexel/s

26.88 TFLOPS

FP16 (half)

21.21 TFLOPS

13.44 TFLOPS

FP32 (float)

10.60 TFLOPS

3.360 TFLOPS

FP64 (double)

662.8 GFLOPS

Graphics Processor

Vega 20

GPU Name

Navi 23

Vega 20 XT

GPU Variant

Navi 23 XT (215-130000006)

GCN 5.1

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

13.23 billion

Transistors

11.06 billion

331 mm²

Die Size

237 mm²

Board Design

295W

TDP

160W

600 W

Suggested PSU

450 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.3

-

CUDA

-

6.7

Shader Model

6.7

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