Radeon HD 6850 vs ATI Radeon HD 5970
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1024MB VRAM ATI Radeon HD 5970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 6850 Advantages
Released 11 months late
Lower TDP (127W vs 294W)
ATI Radeon HD 5970 Advantages
640 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6850
1488
ATI Radeon HD 5970
+55%
2320
Graphics Card
Oct 2010
Release Date
Nov 2009
Northern Islands
Generation
Evergreen
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1000 MHz
Memory Clock
1000 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
128.0GB/s
Bandwidth
128.0GB/s
Render Config
12
Compute Units
20
960
Shading Units
1600
48
TMUs
80
32
ROPs
32
8 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
24.80 GPixel/s
Pixel Rate
23.20 GPixel/s
37.20 GTexel/s
Texture Rate
58.00 GTexel/s
1488 GFLOPS
FP32 (float)
2.320 TFLOPS
-
FP64 (double)
464.0 GFLOPS
Board Design
127W
TDP
294W
300 W
Suggested PSU
600 W
2x DVI
1x HDMI 1.3a
2x mini-DisplayPort 1.1
1x HDMI 1.3a
2x mini-DisplayPort 1.1
Outputs
2x DVI
1x mini-DisplayPort 1.1
1x mini-DisplayPort 1.1
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
Barts
GPU Name
Hemlock
Barts PRO
(215-0798006)
(215-0798006)
GPU Variant
Hemlock XT
(215-0735075)
(215-0735075)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.7 billion
Transistors
2.154 billion
255 mm²
Die Size
334 mm²
Graphics Features
11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
5.0
Shader Model
5.0
