Home GPU Comparison NVIDIA GeForce GTX 275 vs AMD Radeon HD 6770

NVIDIA GeForce GTX 275 vs AMD Radeon HD 6770

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 1024MB VRAM Radeon HD 6770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 's Advantages
Larger VRAM bandwidth (127.0GB/s vs 76.80GB/s)
AMD Radeon HD 6770 's Advantages
Released 2 years late
More VRAM (1024GB vs 896GB)
560 additional rendering cores
Lower TDP (108W vs 219W)

Score

Benchmark

FP32 (float)
GeForce GTX 275
0.674 TFLOPS
Radeon HD 6770 +101%
1.36 TFLOPS
VS

Graphics Card

Jan 2009
Release Date
Jan 2011
GeForce 200
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1134 MHz
Memory Clock
1200 MHz

Memory

896MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
448bit
Memory Bus
128bit
127.0GB/s
Bandwidth
76.80GB/s

Render Config

-
Compute Units
10
30
SM Count
-
240
Shading Units
800
80
TMUs
40
28
ROPs
16
-
-
-
-
-
-
-
L1 Cache
8 KB (per CU)
224 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

17.72 GPixel/s
Pixel Rate
13.60 GPixel/s
50.64 GTexel/s
Texture Rate
34.00 GTexel/s
-
-
-
673.9 GFLOPS
FP32 (float)
1360 GFLOPS
84.24 GFLOPS
FP64 (double)
-

Board Design

219W
TDP
108W
550 W
Suggested PSU
300 W
2x DVI
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
2x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

GT200B
GPU Name
Juniper
G200-105-B3
GPU Variant
Juniper XT (215-0754013)
Tesla 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
1.4 billion
Transistors
1.04 billion
470 mm²
Die Size
166 mm²

Graphics Features

11.1 (10_0)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
1.3
CUDA
-
4.0
Shader Model
5.0

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