AMD Radeon HD 7850 vs NVIDIA GeForce 6800 XT
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 256MB VRAM GeForce 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7850 's Advantages
Released 6 years and 6 months late
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (153.6GB/s vs 38.40GB/s)
1024 additional rendering cores
Score
Graphics Card
Mar 2012
Release Date
Sep 2005
Southern Islands
Generation
GeForce 6 AGP
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
AGP 8x
Clock Speeds
-
-
-
-
-
-
1200 MHz
Memory Clock
600 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
153.6GB/s
Bandwidth
38.40GB/s
Render Config
16
Compute Units
-
-
-
-
1024
Shading Units
-
64
TMUs
12
32
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
-
-
-
-
Theoretical Performance
27.52 GPixel/s
Pixel Rate
3.600 GPixel/s
55.04 GTexel/s
Texture Rate
5.400 GTexel/s
-
-
-
1.761 TFLOPS
FP32 (float)
-
110.1 GFLOPS
FP64 (double)
-
Board Design
130W
TDP
Unknown
300 W
Suggested PSU
200 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
1x DVI
1x VGA
1x S-Video
1x 6-pin
Power Connectors
1x Molex
Graphics Processor
Pitcairn
GPU Name
NV42
Pitcairn PRO
(215-0828062)
GPU Variant
6800 XT
GCN 1.0
Architecture
Curie
TSMC
Foundry
TSMC
28 nm
Process Size
110 nm
2.8 billion
Transistors
0.202 billion
212 mm²
Die Size
222 mm²
Graphics Features
12 (11_1)
DirectX
9.0c (9_3)
4.6
OpenGL
2.0 (full)
2.1 (partial)
1.2
OpenCL
N/A
1.2
Vulkan
N/A
-
-
-
5.1
Shader Model
3.0
