Home GPU Comparison NVIDIA GeForce GT 640 vs AMD Radeon HD 8860 OEM

NVIDIA GeForce GT 640 vs AMD Radeon HD 8860 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM Radeon HD 8860 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 175W)
AMD Radeon HD 8860 OEM 's Advantages
Released 7 months late
Larger VRAM bandwidth (179.2GB/s vs 28.51GB/s)
896 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 640
0.693 TFLOPS
Radeon HD 8860 OEM +241%
2.368 TFLOPS
VS

Graphics Card

Jun 2012
Release Date
Jan 2013
GeForce 600
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
891 MHz
Memory Clock
1400 MHz

Memory

2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.51GB/s
Bandwidth
179.2GB/s

Render Config

-
Compute Units
20
-
-
-
384
Shading Units
1280
32
TMUs
80
16
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

7.216 GPixel/s
Pixel Rate
29.60 GPixel/s
28.86 GTexel/s
Texture Rate
74.00 GTexel/s
-
-
-
692.7 GFLOPS
FP32 (float)
2.368 TFLOPS
28.86 GFLOPS
FP64 (double)
148.0 GFLOPS

Board Design

65W
TDP
175W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
1x 6-pin

Graphics Processor

GK107
GPU Name
Curacao
GK107-300-A2
GPU Variant
Curacao PRO (215-0848000)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
2.8 billion
118 mm²
Die Size
212 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
5.1

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