AMD Radeon RX 7900 GRE vs AMD Radeon R9 255 OEM

VS

AMD Radeon RX 7900 GRE AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7900 GRE and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 GRE 's Advantages

Released 9 years and 7 months late

Boost Clock has increased by 141% (2245MHz vs 930MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 73.60GB/s)

4608 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Lower TDP (65W vs 260W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 GRE +4729%

45.98 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

Radeon RX 7900 GRE

VS

Radeon R9 255 OEM

Graphics Card

Jul 2023

Release Date

Dec 2013

Navi III

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1287 MHz

Base Clock

900 MHz

2245 MHz

Boost Clock

930 MHz

2250 MHz

Memory Clock

1150 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

80

Compute Units

8

5120

Shading Units

512

320

TMUs

32

160

ROPs

16

-

Tensor Cores

-

80

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

Theoretical Performance

359.2 GPixel/s

Pixel Rate

14.88 GPixel/s

718.4 GTexel/s

Texture Rate

29.76 GTexel/s

91.96 TFLOPS

FP16 (half)

-

45.98 TFLOPS

FP32 (float)

952.3 GFLOPS

1437 GFLOPS

FP64 (double)

59.52 GFLOPS

Graphics Processor

Navi 31

GPU Name

Cape Verde

Navi 31 XL

GPU Variant

Cape Verde PRX

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

Board Design

260W

TDP

65W

600 W

Suggested PSU

250 W

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

Outputs

No outputs

2x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

5.1

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