Home GPU Comparison AMD Radeon HD 8570 OEM Rebrand vs ATI Radeon HD 4855

AMD Radeon HD 8570 OEM Rebrand vs ATI Radeon HD 4855

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8570 OEM Rebrand 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 HD 8570 OEM Rebrand 's Advantages
Released 3 years and 6 months late
More VRAM (1024GB vs 512GB)
Lower TDP (60W vs 110W)
ATI Radeon HD 4855 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 25.60GB/s)
160 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8570 OEM Rebrand
0.624 TFLOPS
Radeon HD 4855 +17%
0.736 TFLOPS
VS

Graphics Card

Jul 2013
Release Date
Jan 2010
Sea Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
900 MHz

Memory

1024MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
25.60GB/s
Bandwidth
115.2GB/s

Render Config

6
Compute Units
8
-
-
-
480
Shading Units
640
24
TMUs
32
8
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

5.200 GPixel/s
Pixel Rate
9.200 GPixel/s
15.60 GTexel/s
Texture Rate
18.40 GTexel/s
-
-
-
624.0 GFLOPS
FP32 (float)
736.0 GFLOPS
-
FP64 (double)
147.2 GFLOPS

Board Design

60W
TDP
110W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
-
Power Connectors
1x 6-pin

Graphics Processor

Turks
GPU Name
RV770
Turks PRO (215-0803002)
GPU Variant
RV770 PRO (215-0669065)
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
0.716 billion
Transistors
0.956 billion
118 mm²
Die Size
256 mm²

Graphics Features

11.2 (11_0)
DirectX
10.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
4.1

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