AMD Radeon R7 350 640SP vs AMD Radeon RX 6900 XTX

VS

AMD Radeon R7 350 640SP

AMD Radeon RX 6900 XTX

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 350 640SP and 16GB VRAM Radeon RX 6900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 350 640SP 's Advantages

Lower TDP (55W vs 330W)

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 72.00GB/s)

4480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 350 640SP

1.184 TFLOPS

Radeon RX 6900 XTX +2005%

24.93 TFLOPS

Radeon R7 350 640SP

VS

Radeon RX 6900 XTX

Graphics Card

Jan 2019

Release Date

Unknown

Pirate Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2075 MHz

-

Boost Clock

2435 MHz

1125 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

576.0GB/s

Render Config

10

Compute Units

80

-

640

Shading Units

5120

40

TMUs

320

16

ROPs

128

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

14.80 GPixel/s

Pixel Rate

311.7 GPixel/s

37.00 GTexel/s

Texture Rate

779.2 GTexel/s

-

FP16 (half)

49.87 TFLOPS

1184 GFLOPS

FP32 (float)

24.93 TFLOPS

74.00 GFLOPS

FP64 (double)

1.558 TFLOPS

Board Design

55W

TDP

330W

250 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

None

Power Connectors

2x 8-pin

Graphics Processor

Cape Verde

GPU Name

Navi 21

Cape Verde XT

GPU Variant

Navi 21 XTXH (215-121000247)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

1.5 billion

Transistors

26.8 billion

123 mm²

Die Size

520 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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