AMD Radeon R7 250X vs ATI Radeon HD 4855

VS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages

Released 4 years and 1 months late

More VRAM (1024GB vs 512GB)

Lower TDP (80W vs 110W)

ATI Radeon HD 4855 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 72.00GB/s)

Score

Benchmark

FP32 (float)

Radeon R7 250X +65%

1.216 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon R7 250X

VS

Radeon HD 4855

Graphics Card

Feb 2014

Release Date

Jan 2010

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1125 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

10

Compute Units

8

640

Shading Units

640

40

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

15.20 GPixel/s

Pixel Rate

9.200 GPixel/s

38.00 GTexel/s

Texture Rate

18.40 GTexel/s

-

FP16 (half)

-

1216 GFLOPS

FP32 (float)

736.0 GFLOPS

76.00 GFLOPS

FP64 (double)

147.2 GFLOPS

Graphics Processor

Cape Verde

GPU Name

RV770

Cape Verde XT

GPU Variant

RV770 PRO (215-0669065)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.956 billion

123 mm²

Die Size

256 mm²

Board Design

80W

TDP

110W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon R7 250X vs ATI Radeon HD 5690

2

AMD Radeon R7 250X vs AMD Radeon R5 340X OEM

3

AMD Radeon R7 250X vs NVIDIA P106 100

4

AMD Radeon R7 250X vs AMD Radeon RX 6400

5

AMD Radeon R7 250X vs NVIDIA GeForce RTX 2070 SUPER

6

AMD Radeon R7 250X vs AMD Radeon HD 7350 OEM PCI

7

AMD Radeon R7 250X vs ATI Radeon HD 3870 X2

8

AMD Radeon R7 250X vs NVIDIA GeForce GTX 750 Ti OEM

9

AMD Radeon R7 250X vs AMD Radeon RX 5300

10

AMD Radeon R7 250X vs NVIDIA GeForce 8800 Ultra

Related News

1

Apple's 2025 OS in Development: iOS 19 Codename 'Luck'

2

Apple's AI is Memory Hungry! The Entire iPhone 16 Lineup Comes with 8GB RAM

3

Noctua Announce NH-D15 G2 Air Cooler and NF-A14x25r G2 Fan

4

The P-Cores and E-Cores in Arrow Lake Will Be Interleaved, Reducing Core Communication Latency and Improving Heat Dissipation

5

Changes in Intel Arrow Lake P/E Core Layout: Two Major Benefits

6

Time to Step Up, AMD and Intel! Nvidia Faces Antitrust Lawsuits in France, US, and EU

7

Intel Arrow Lake-S Features Dual Direct M.2 Slots: One PCIe 5.0 x4 and One PCIe 4.0 x4

8

AMD Ryzen 9000X3D Series to Feature Fully Unlocked Overclocking; DDR5-6400: The 'Sweet Spot' for Zen 5 Memory Speeds

9

Intel Z890 Motherboard Specs Leaked: Farewell to DDR4 Memory

10

AMD Ryzen 9000 Series Now Available for Pre-order in Europe: 9950X Priced at €660, Shipping by August 2