Home GPU Comparison ATI Radeon HD 4870 X2 vs ATI Radeon HD 5850

ATI Radeon HD 4870 X2 vs ATI Radeon HD 5850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 1024MB VRAM Radeon HD 5850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5850 's Advantages
Released 1 years and 1 months late
Larger VRAM bandwidth (128.0GB/s vs 115.2GB/s)
640 additional rendering cores
Lower TDP (151W vs 286W)

Score

Benchmark

FP32 (float)
Radeon HD 4870 X2
1.2 TFLOPS
Radeon HD 5850 +74%
2.088 TFLOPS
VS

Graphics Card

Aug 2008
Release Date
Sep 2009
Radeon R700
Generation
Evergreen
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
900 MHz
Memory Clock
1000 MHz

Memory

1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
115.2GB/s
Bandwidth
128.0GB/s

Render Config

10
Compute Units
18
-
-
-
800
Shading Units
1440
40
TMUs
72
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

12.00 GPixel/s
Pixel Rate
23.20 GPixel/s
30.00 GTexel/s
Texture Rate
52.20 GTexel/s
-
-
-
1200 GFLOPS
FP32 (float)
2.088 TFLOPS
240.0 GFLOPS
FP64 (double)
417.6 GFLOPS

Board Design

286W
TDP
151W
600 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin

Graphics Processor

R700
GPU Name
Cypress
R700 XT (215-0669045)
GPU Variant
Cypress PRO (215-0735043)
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.956 billion
Transistors
2.154 billion
256 mm²
Die Size
334 mm²

Graphics Features

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

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