Radeon HD 8670M vs GeForce GT 740M
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 2GB VRAM GeForce GT 740M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 8670M 's Advantages
Boost Clock975MHz
GeForce GT 740M 's Advantages
More VRAM (2GB vs 1024GB)
64 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 8670M
624
GeForce GT 740M
+20%
753
3DMark Time Spy
Radeon HD 8670M
316
GeForce GT 740M
+8%
342
3DMark Time Spy Extreme
Radeon HD 8670M
97
GeForce GT 740M
+2%
99
Graphics Card
Mar 2013
Release Date
Jun 2013
Solar System
Generation
GeForce 700M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
925 MHz
Base Clock
-
975 MHz
Boost Clock
-
900 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
2GB
DDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
14.40GB/s
Render Config
5
Compute Units
-
320
Shading Units
384
20
TMUs
32
8
ROPs
8
16 KB (per CU)
L1 Cache
16 KB (per SMX)
128 KB
L2 Cache
512 KB
Theoretical Performance
7.800 GPixel/s
Pixel Rate
7.840 GPixel/s
19.50 GTexel/s
Texture Rate
31.36 GTexel/s
624.0 GFLOPS
FP32 (float)
752.6 GFLOPS
39.00 GFLOPS
FP64 (double)
31.36 GFLOPS
Board Design
Unknown
TDP
33W
Portable Device Dependent
Outputs
No outputs
Graphics Processor
Sun
GPU Name
GK208
Sun S3 XT
(216-0841009)
GPU Variant
GT 740M
GCN 1.0
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.69 billion
Transistors
1.02 billion
56 mm²
Die Size
87 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
3.0
1.2.170
Vulkan
1.1
-
CUDA
3.5
6.5 (5.1)
Shader Model
5.1