NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GTX 680 Mac Edition
We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 and 2GB VRAM GeForce GTX 680 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 2080 's Advantages
Released 5 years and 5 months late
Boost Clock has increased by 62% (1710MHz vs 1058MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 192.3GB/s)
1408 additional rendering cores
NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Lower TDP (195W vs 215W)
Score
Benchmark
FP32 (float)
GeForce RTX 2080
+209%
10.07 TFLOPS
GeForce GTX 680 Mac Edition
3.25 TFLOPS
Graphics Card
Sep 2018
Release Date
Apr 2013
GeForce 20
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1515 MHz
Base Clock
1006 MHz
1710 MHz
Boost Clock
1058 MHz
1750 MHz
Memory Clock
1502 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
192.3GB/s
Render Config
-
-
-
46
SM Count
-
2944
Shading Units
1536
184
TMUs
128
64
ROPs
32
368
Tensor Cores
-
46
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
512 KB
-
-
-
Theoretical Performance
109.4 GPixel/s
Pixel Rate
33.86 GPixel/s
314.6 GTexel/s
Texture Rate
135.4 GTexel/s
20.14 TFLOPS
FP16 (half)
-
10.07 TFLOPS
FP32 (float)
3.250 TFLOPS
314.6 GFLOPS
FP64 (double)
135.4 GFLOPS
Board Design
215W
TDP
195W
550 W
Suggested PSU
450 W
1x HDMI 2.0
3x DisplayPort 1.4a
1x USB Type-C
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
TU104
GPU Name
GK104
TU104-400A-A1
GPU Variant
GK104-400-A2
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
13.6 billion
Transistors
3.54 billion
545 mm²
Die Size
294 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.0
6.6
Shader Model
5.1
