Home GPU Comparison NVIDIA GeForce GTX 770 vs ATI Radeon HD 3870

NVIDIA GeForce GTX 770 vs ATI Radeon HD 3870

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 770 and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 770 's Advantages
Released 5 years and 6 months late
Boost Clock1085MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (224.4GB/s vs 72.06GB/s)
1216 additional rendering cores
ATI Radeon HD 3870 's Advantages
Lower TDP (106W vs 230W)

Score

Benchmark

FP32 (float)
GeForce GTX 770 +570%
3.333 TFLOPS
Radeon HD 3870
0.497 TFLOPS
VS

Graphics Card

May 2013
Release Date
Nov 2007
GeForce 700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

1046 MHz
Base Clock
-
1085 MHz
Boost Clock
-
1753 MHz
Memory Clock
1126 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR4
256bit
Memory Bus
256bit
224.4GB/s
Bandwidth
72.06GB/s

Render Config

-
Compute Units
4
-
-
-
1536
Shading Units
320
128
TMUs
16
32
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
512 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

34.72 GPixel/s
Pixel Rate
12.43 GPixel/s
138.9 GTexel/s
Texture Rate
12.43 GTexel/s
-
-
-
3.333 TFLOPS
FP32 (float)
497.3 GFLOPS
138.9 GFLOPS
FP64 (double)
99.46 GFLOPS

Board Design

230W
TDP
106W
550 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin

Graphics Processor

GK104
GPU Name
RV670
GK104-425-A2
GPU Variant
RV670 XT (215-0708005)
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
3.54 billion
Transistors
0.666 billion
294 mm²
Die Size
192 mm²

Graphics Features

12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
3.0
OpenCL
N/A
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
4.1

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