Home GPU Comparison ATI Radeon HD 4670 vs AMD Radeon HD 6850

ATI Radeon HD 4670 vs AMD Radeon HD 6850

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 's Advantages
Lower TDP (59W vs 127W)
AMD Radeon HD 6850 's Advantages
Released 2 years and 1 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (128.0GB/s vs 32.00GB/s)
640 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 4670
0.48 TFLOPS
Radeon HD 6850 +210%
1.488 TFLOPS
VS

Graphics Card

Sep 2008
Release Date
Oct 2010
Radeon R700
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

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

Memory

512MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
128.0GB/s

Render Config

4
Compute Units
12
-
-
-
320
Shading Units
960
32
TMUs
48
8
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

6.000 GPixel/s
Pixel Rate
24.80 GPixel/s
24.00 GTexel/s
Texture Rate
37.20 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
1488 GFLOPS
-
-
-

Board Design

59W
TDP
127W
250 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
None
Power Connectors
1x 6-pin

Graphics Processor

RV730
GPU Name
Barts
RV730 XT (215-0719047)
GPU Variant
Barts PRO (215-0798006)
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.514 billion
Transistors
1.7 billion
146 mm²
Die Size
255 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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